Don't "Boost"; Safer Reset! 4 lights blinking on Bad Ryobi 40V Battery Pack? OP40501 OP40401 Rev. Q.

Want to send me some crypto since I just saved you $100? ETC (Ethereum Classic) Address
0x866d3ACB0c852acc4E8b4E944E9C54673670e305
Notes below the links. Expand this description for warning! UPDATE: Part 2: • Part 2: 4 lights blink...
I'm unemployed. Use my links to buy or Buy me a cup of coffee here: Paypal.me/beach... And: Don't do this, you'll kill yourself! ***I take no responsibility for what you do. This video is for informational purposes only.***. Mainly, be careful not to short a pack. I burned my fingers once when I shorted one by accident and it took 1-2 weeks to heal. Plus index and middle fingers get used a lot so a sore on the end sucks.
Have to buy a new battery? Amazon has third party ones cheap: amzn.to/3uxa9qu
Ebay .81mm Solder: rover.ebay.com...
Ebay Security Torx Set under $7 (This is my exact set I think) ebay.us/apAiCS
The holes that you need to jumper say 'RST' (for reset) next to them, I believe.
There are other videos that show you how to 'boost' or charge the battery manually with another pack or charger. This is NOT that, but BOTH may be required if the pack is at 0 volts AND the BMS (Battery Management System) has placed the pack into Safe Mode or Test Mode or whatever they call it.

[@RobertBullock]

UPDATE: 1. I'm considering taking this video down and just doing the repair myself and selling the batteries I fix for more $$. No one hardly donates, despite saving $100 every time they save a battery. 2. *KZbin* is making money off these ads. NOT ME. Until I get to 1,000 subscribers, they keep it ALL. It's really unfair but you can help by using my links, making tiny donations, and at least clicking that "Subscribe" method. I've saved hundreds or thousands of dollars for people, and KZbin is making money off this...so help me out. Please use my links: I'm underemployed. KZbin is one of my part time jobs. :) Subscribing costs you nothing and I need to get to 1000 subs! Those ads you see here? I get NOTHING until I hit 1,000 subscribers. ETC (Ethereum Classic) Address 0x866d3ACB0c852acc4E8b4E944E9C54673670e305 if you want to send a small amount of crypto. Buy me a cup of coffee here: Paypal.me/beachfitrob Buy cheaper third party batteries on Amazon. Like half price: amzn.to/3uxa9qu I get a little commission. Ebay .81mm Solder: rover.ebay.com/rover/1/711-53200-19255-0/1?mpre=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_from%3DR40%26_trksid%3Dp2380057.m570.l1313%26_nkw%3D.81mm%2Bsolder%26_sacat%3D0&campid=5337534429&toolid=20008 Ebay Security Torx Set $7 (This is my set I think) rover.ebay.com/rover/1/711-53200-19255-0/1?mpre=https%3A%2F%2Fwww.ebay.com%2Fitm%2F33-pc-SECURITY-BIT-SET-TORX-TAMPERED-PROOF-DRILL-DRIVER-TOOL-SCREWDRIVERS-BITS%2F350583822596%3Fepid%3D600593879%26_trkparms%3Dispr%253D1%26hash%3Ditem51a06c9904%3Ag%3AtK4AAOxycT9R5h3G%26enc%3DAQAFAAACYBaobrjLl8XobRIiIML1V4Imu%252Fn%252BzU5L90Z278x5ickkWpEuxXwAiCNKyBQsQ5%252Fe6%252Fg%252FJhgZb6vBP9LbkWZJeXB9kNQFTg3U1rF0Y3udqe3rYCBMtBlwiy5ZMjSaz9VE%252FUS1lQUnKnXtXw1mxosIOBF4bmv3FuxSMNTZxoD0pCy66GVFPfa8gaUWgYresnTK0GrFaOrv8Ly3h6t2vOGNmU82C6NYtyE4dXdLG8VmuPCRUk1rAJHSMw4g6lhWxIegIQxMTyjHynVmjb1S%252B9X%252FtnQw4muJyhPQKwpFL0SlDb%252FBKDUBdvIt7Y8J2%252ByitzYdBAQZ2AMjzbQf2BQwYaATfov5PyC4eYXjm26NgKTLPGSB4KzJIPoZaxeiNDaQxlRBwLIYC94155mLWtWpmdMPYTfG0KDF39GOibVRO%252Fek1UbIyALsErtP%252Ftb8AmEr2RkaXY6zWzfxBltsg%252BGKEFu0xQUNKTeUlE%252FrIeOeNNAnqbyxfcB%252FiCcTZ8CUwkmHCmmO0vjbjOsumtjZ7sqHqGlVoW6N6Qp1k7fvzFIRL19FBmY%252FjfGd1%252FiruDCjbmY3Sj3z4%252Fy4v8mt%252Fc2SkN8DYnBQvg8LY0kpA%252BZ2gALCKCW6wmxX6AWZj3lpujssMDScTF0flnfL%252Flu%252FcM%252BHl1HuqjJqRj30a6Fxaw%252FQS6S1rBLCbgpCZduOBl9V6CDDDIKjAOB2UjLtAJP1nR%252F1dZNvBSdIiPW9TpTHLrH8M8S0FAUJfvXxwcpQLGPMgwDPY1ZPnTsmoLcqdc4vpxes5kPrntxnnZLLFGHHneWoigTzjGHSm2Nx%26checksum%3D3505838225961063558040ba41068c3f2af2ebab9a4e&campid=5337534429&toolid=20008

[@johnsrock3110]

They make it difficult to sign in to new people ..... I tried 4 times with password reset before i finally was able to log in .....

[@TnADoStuff]

Agree, having similar frustration, but see you finally make it to 1k subscribers :) I'm still only at 200. Any chance you found similar solution for the 18v batteries? Donated!

[@MISSINGYEARS]

How's your eth classic did u sell it? I thought eth holders were going to jump in

[@davidsilveira5858]

Hi Robert, I will gladly subscribe and send you a venmo for $10 if I can get it working. I've reset it like 20+ times and put it on the charger in between each time to test and it's still the same result. After resetting it gives the one blinking light when i press one time, when I press a second time it's back to the 4 blinking lights. Any advice? Thanks

[@BobBob-nr1zt]

for someone who complains about people not helping you out, you sure go out of your way to promote Amazon, an anti-democratic union-busting company.

[@robertabrams1493]

Your fix workd like a charm. I was on my 2nd Ryobi 40V battery, the first one died about 2 years ago. When the 2nd one died I was determined not to have to pay another $100 for a third battery. Your fix was simple and easily repeatable if I ever have the same problem. Ryobi should have a reset button on the exterior of the battery because this issue seems to be pretty common.

[@RobertBullock]

I've considered soldering wires to the charge level button so that when you check the charge it also does a reset. Consider a donation of coffee money and maybe I'll make that video. :) paypal.me/beachfitrob and don't forget to subscribe because I might just do that. Have to open one soon because it tripped again, and I have the wires/solder/etc. It's a simple thing.

[@SteveTraylor]

Reset worked! I left my trimmer out in the rain, causing all four lights to flash and the battery not work. But the.RST reset trick worked! I used a piece of solder wire bent in a U shape to reset it. Hardest part was getting the four screws out. I had to drill out the little center tip sticking up out of the middle of the hex head screws. I used a T15 bit. I just peeled the end label back instead of cutting it, and it stuck back down good as new. Thank you for the video. It saved me about $95 at HD.

[@RobertBullock]

Please read the pinned comment and Subscribe and consider maybe a cup of coffee for me? :) Even a few % of what I've saved people would be nice.

[@raynoel4618]

I clicked "Thumbs Up" only because there isn't a "Heart" to click. You saved me $170 with this fix. I thought my battery was gone for sure. Thanks for this video.

[@RobertBullock]

Some people buy me a cup of coffee at paypal.me/beachfitrob but I also take crypto. Someone's recently sent me 75 cents in ETC. LOL. :)

[@94sn95gt]

Unbelievable, but Ill be damned if it didn't work. Battery is now taking a charge. You just got a new Subscriber.

[@RobertBullock]

Thanks for the Subscribe! Thanks if you donated, if not please consider. :)

[@itsbetterwithbeer4353]

Thank you so much!! This is the ONLY video I have found on this model. I have the 5Ah 40v battery (OP40501). All of the other videos on KZbin are on a completely different model and they want me to do all kinds of mods. All that stuff on websites about using another battery to charge this bad one, or spending 30 minutes plugging it into the charger and then taking it back out just before the charger light starts to flash red/green...USELESS! When I found this and performed this simple reset, it worked perfectly and the pack is charging as I type. I sent you a little more than a cup of coffee bro, you just saved me $160.00 if I had bought a new one at Home Depot!

[@Beachfitrob]

Thanks! I will say this: not ALL packs work properly again. One I had worked but then I had to reset it again to make it work....I may solder in an external contact set for that one. One worked fine thru one cycle so far. One I haven't tested again. Some reset but then still wont work. So, YMMV. But be sure to try it as so far, some work fine as far as I can tell. Pretty sure one of mine was just a thermal issue....too hot outside, heavy use...and went into safe mode. Texas in the summer. Tall weeds. Weedeater.

[@Beachfitrob]

So it sounds like the 5Ah is the same as the 4Ah basically.

[@Beachfitrob]

Also, don't know if I mentioned it but I don't think the jump works here. If you jump it, and then hold a voltmeter on it, the voltage bleeds down rapidly. I think it's charging a small capacitor maybe? I think the other contacts control the pack. It's not a dumb pack by any means.

[@itsbetterwithbeer4353]

@@Beachfitrob Seems to be, it looks the same on the exterior and has the same board.

[@itsbetterwithbeer4353]

@@Beachfitrob Yup, that's what it did! It would hold the 40 volts right after I tried to boost off a good pack, but when I put it in the charger, it would flash red/green. Then when I took it out and tested it again, it was at 3 volts. Ryobi did everything that could to get people to buy a new battery, when it's just a simple reset.

[@thecenturion9277]

Yes! It works!!!! 2.6 Ah is back and ready. Blew off my driveway and front yard with it and used it to prune my front hedges. After it got too low to run my tools, 45 minutes, I recharged it and edged the front yard. I have a third of an acre lot so this…. I timed it, eight minute chore, made me around $90.00 bucks. Oh dude, I must be a geek because I had the security torx head and some small gauge insulated wire from an old 4’ fluorescent ceiling fixture I converted to LED. Thank you thank you for sharing bro!

[@RobertBullock]

Glad I could help! Please give us a Subscribe so KZbin will actually pay me for the ads they show WITHOUT paying me...so wrong...or donate a dollar at paypal.me/beachfitrob...finally, I also take crypto if you want to send me a few sa

[@phouth5]

It works! How on earth did they not add a reset function to reduce costs and save time on sending out a new battery is beyond me. This video is DIY fix savior!

[@RobertBullock]

So I saved you enough to buy me a cup of coffee? paypal.me/rcbullock Don't forget to like and Subscribe. I also take crypto. :) And...Ya got me. I imagine that's if it goes back to the factory they can check everything out so the RST is there. Who knows.

[@johnpauldelacruz3377]

My battery was literally in the trash bin. Watched the video, for a last hope. Did all the steps and it worked! Many thanks!

[@RobertBullock]

Some people donate a few dollars to PayPal.me/beachfitrob :) My channel is too small to monetize.

[@JimmyTarrant]

This worked!!! Thank you so much. I got the defective battery message after trying to tackle some overgrown grass with the self propelled mower.

[@RobertBullock]

Please buy me a cup of coffee here: Paypal.me/beachfitrob Any amount is awesome. :) And yeah, pretty sure it's a simple overheat because of a thermistor that detects such.

[@RobertBullock]

Yup, same deal: just a temporary overheat.

[@kma5699]

I see the 4 lights flashing randomly after i charged it but it was also after using several batteries to weedwack tall grass. The battery works but the battery level indicator flashes without even being connected to a tool. Mine is a 4ah 18v ryobi though.

[@ClandOp]

This is one of the best DYI videos I've ever watched. After looking a videos that used micro chargers and soldering and ramming the battery in and out of the charger, this took me about 5 minutes and worked perfectly. I suggest using INSULATED wire for this, so you don't have to worry about grounding, rather than solder wire! Probably only works on Rev Q batteries, but I believe that's the latest Ryobi is producing. BTW the plastic cap on the one screw is probably best removed with a precision flathead screwdriver.

[@RobertBullock]

Help me out since I'm underemployed and I helped. :) Price of a Cup of coffee fair? www.paypal.com/paypalme/beachfitrob Subscribe to my channel also needed so I can earn income off it.

[@_DrDrakeRamoray]

What do you connect the wires to? Another battery?

[@vicmuno26]

@@_DrDrakeRamoray I used a paper clip. Just touched the two together.

[@theezequielzeke]

I have a hart 40v and the lights are flashing and won’t charge. I took it apart but it don’t have the reset button

[@imhi2002]

That fix literally took 5 minutes! it was so easy! I even had the right driver for those screws. Thank you!

[@RobertBullock]

Please like and subscribe especially since KZbin shows ads but *DOESN'T pay me* until 1000 subs. Some people send me a cup of coffee at paypal.me/beachfitrob TY!

[@bobpannelli382]

OMG! I had a Ryobi 40V that was showing as defective and would not work. I tried this fix and it now will accept a charge up to 3 out of 4 lights. I am happy with this and not having to shell out $140 for new battery. Thanks for the advice!!!!

[@RobertBullock]

Please help an out of work guy and like and subscribe. :) Some people have sent me money for a cup of coffee at the link pinned here. :) Paypal.me/beachfitrob

[@bobpannelli382]

@@RobertBullock I did a like and subscribed. Also bought the security bits on eBay that you had a link to. Thanks again for the battery advice!

[@Teeim]

Top notch solution right here! Just saved me so much hassle and I'm not sure I could find the receipt that Ryobi wants anyway because it was a gift. Back to weed trimming soon enough! Thanks!!

[@RobertBullock]

Please like and Subscribe so KZbin will share ad revenue with me. Also I accept any size donation at paypal.me/beachfitrob :)

[@DetFury50]

what did u use to touch the two metal pieces on the board next to the reset switch? I get we have to ground ourselves but how do you touch it? a 2 wires/ 2 screws?

[@DetFury50]

someone used a paperclip- just wondering what you used?

[@Teeim]

@@DetFury50 Mobile phone sim card tray ejector tools. Small paper clips would work I'm sure though or some small gauge metal wire.

[@kurtfenstermacher8157]

My battery had the 4 flashing lights, so I threw it on a shelf where it sat for almost 2 years. I watched this video today and I can't believe it worked! Battery is charged and ready to go. I had to run to Lowes for a security bit set and then used a paperclip to reset. It only took a second for my lights to all come on and work again. Thanks for posting this video! I still can't believe it worked.

[@RobertBullock]

Please buy me a cup of coffee here: Paypal.me/beachfitrob Any amount is awesome. :)

[@dmc31405]

Hi Robert, Thanks for the tip. It worked, but I had to reset again after about 5 minutes of charging. I hope this won't keep being part of the process. The most difficult part was digging that dang plug out that was blocking the one Torx Head. I don't know why Ryobi doesn't have a reset button for this option, they are hemorrhaging millions of dollars over a stupid little detail. My 10 year old Rigid Cordless Drill Combo set has never done this before. I challenge everyone to send Robert $10.00. That seems like the least we can do for this useful tip. I may have jumped the gun on thinking that this fix solved my problem. Battery wont reach a full charge, I have reset it at least 10 times, voltage is at 35.5-36.5 . I did run the hedge trimmer for about 8-9 minutes, and came back in and put it on the charger. It started charging and repeated the same scenario again. Going to let the battery rest for a while, as it now charges for just a couple minutes and then back to green/red, green/red. I will update this post when I figure out more about what is going on. Robert have you got any suggestions? Ryobi is sending me another battery. So I haven't lost anything but some sweat equity at this point.

[@RobertBullock]

Yes I got a new battery too as mentioned elsewhere but mine was an overheat condition due to working outside. I’d consider soldering wires from RST to the battery gauge so it resets every time you check voltage maybe. Don’t blame me if this defeats an important safety feature but it should just fault out again is what I’d think. Def. Thanks so much for the donation! If the pack doesn’t work very long after a few cycles it’s still worth keeping for emergency power out USB device charging. If you have the charger with the USB port. I have with and without.

[@dmc31405]

@@RobertBullock Thanks for the Reply. Good idea about soldering a jumper from the RST, to the check battery switch. I'm going to use/cycle the battery a few times and see what happens. It might recondition the battery if I use it. CS at Ryobi said that the replacement battery would be here in 10 days. I assume by then, I'll decide what to do with the old battery.

[@DR-hv1jl]

I did this and it absolutely worked perfect. I used a paper clip with some electrical tape to hold onto and held onto the mac case. Strangely though, it had 3 LEDs when I pushed the button. Anyway, thanks Robert Bullock for your on-point video...

[@RobertBullock]

Did I just save you over $100? Subscribing costs you nothing and I need to get to 1000 subscriptions so I can earn money from ads. And you can buy me a cup of coffee here: Paypal.me/beachfitrob :)

[@DR-hv1jl]

I am now charging it and when I pull the battery off charge, press the charge indicator it shows 2 LEDs. 🤷🏼‍♂️

[@defreeman5664]

I can't tell you how much I appreciate this quick and easy fix. I was soooo frustrated with Ryobi when I couldn't find a receipt from last summer. You got my like and subs. Thanks again!!

[@RobertBullock]

Please buy me a cup of coffee here: Paypal.me/beachfitrob Any amount is awesome. :)

[@meblakney]

OMG!!! That totally worked! I noticed my 5ah battery wasn't going to fully charge and the next time I used it and tried to recharge, I got the errors you described. I did your reset method, got the one blink and now it charging. Thanks a bunch, you are a money saver. I'm a sub now!

[@RobertBullock]

Yay. Some people send me coffee money. :) Buy me a cup of coffee here: Paypal.me/beachfitrob Anything I get is thrilling.

[@meblakney]

@@RobertBullock Ya know what, since I got one 5Ah, two 4Ah and one 2.6Ah batteries, I'm sending enough to get a hole can of coffee. 😄

[@RobertBullock]

@@meblakney Got It! You rock!

[@jackito5701]

This worked great. I used a twist tie from a loaf of bread for the wire. Just stripped the ends off. Perfect size for this. I really appreciate your video. Happy to give you a donation. You saved me a lot.

[@RobertBullock]

Thanks, and I appreciate the subscribe. Yeah, I save those bread ties mostly for cable storage but I have been known to use the wire as a wire too. LOL!

[@RobertBullock]

And I got the donation. MUCH appreciated.

[@andrewscoggins9191]

Thanks for taking the time to make this video Robert, worked perfectly. Such a simple yet effective solution vs. some of the other "fixes" I've seen on KZbin.

[@RobertBullock]

You're welcome. Would you please like and subscribe? KZbin makes money off the ads in my video but they pay me zero until I get 1,000 subscribers. Also, I like coffee if you want to buy me a cup: Buy me a cup of coffee here: Paypal.me/beachfitrob Thanks! Anything is appreciated.

[@zcpeanut]

Worked like a charm! Saved my 5AH battery. I used insulated very thin needle nose pliers to jump the pack. When I hit the battery level button on the pack it was solid green 4 lights. Once I got it on the charger after that it began to charge again. $5 in torx security bits saved me a bunch of money!

[@RobertBullock]

Please Like and Subsribe so one day KZbin will pay me for the ads they show. Some people send me coffee $$ here: Paypal.me/beachfitrob TIA!

[@scottydvintagevideos]

Thanks Mr Bullock. I initially had trouble getting the plastic plug out of the 4th screw, but after some widdling, it came out. I used a paper clip that was held by a pair of wire stripper pliers. I pushed the battery status button while I jumped the two spots with the paper clip and the battery woke up out off sleep mode. It then took a full charge. Yes, I'll throw you a subscribe.

[@RobertBullock]

You can Buy me a cup of coffee here: Paypal.me/beachfitrob :) Don't forget that Subscribe. Read the top comment on this video for how KZbin hurts us small creators.

[@cperez1263]

Dude! Your the best and saved me a lot of grief and money. Thank you, thank you, thank for sharing this. Subscribed for life.!

[@RobertBullock]

Thanks, was it you that sent me $$?

[@cperez1263]

@@RobertBullock No. Not sure how to do that.

[@cperez1263]

Ok. Sent a small token $$$. Thanks again bro.

[@RobertBullock]

@@cperez1263 TYVM!

[@cjvfitness7]

For anyone who has done this and once putting it back on the charger it reverts back to safety mode, give it a few tries. It took me about 8 times resetting and placing it back on the charger before it quit reverting back to safe mode.

[@RobertBullock]

That's what I have heard. Glad to confirm it works at least some of the time. It charges a small amount each time is my understanding. Please buy me a cup of coffee here: Paypal.me/beachfitrob Any amount is awesome. :)

[@angleturner]

Yep that’s exactly what mine is doing reverting back to safety mode every time, I will keep at it and update as to how many tries it takes. Twice just twice and it seems to be charging OK now. Thanks much !!!

[@ps2jnky]

Thanks a ton! For those that freaked out like I did. When you jump the reset, my battery did nothing. No lights or anything. But when I pushed the button, it blinked a single light instead of all 4.

[@RobertBullock]

Yup, it seems to vary between needing a button press and not. Please read the pinned comment below. KZbin is showing ads on this and giving me none of the revenue.

[@khaimera2858]

Just used this method with a metal twist tie like one commenter mentioned. It worked great. When its on the charger it says it's full but when I press the button on the battery it only says half full. But it powered my blower so I'm happy. I liked and subscribed btw

[@RobertBullock]

Thanks! Cup of coffee donations accepted at PayPal.me/Beachfitrob Any amount you feel is fair.

[@arcorob]

This worked awesome !!! 5 minute fix and my battery is charging as we speak -- THANK YOU

[@RobertBullock]

You're welcome. :) Wanna buy me a cup of coffee here? Paypal.me/beachfitrob

[@user-vp7cr3lm7c]

Thanks for your video Robert. Those Batteries are expensive to replace.I will give this a try. Just waiting for the torx set to arrive from Amazon.

[@RobertBullock]

It's free and takes a short few minutes. Worked for way more people than it hasn't, viewing the comments plus the few dollars tips people send me. :)

[@mrmojorisin7487]

Thanks for the video! The hardest part was going to Home Depot to buy the torx security screwdriver! Brilliant fix!

[@RobertBullock]

Please Subscribe and if you like, ETC (Ethereum Classic) Address 0x866d3ACB0c852acc4E8b4E944E9C54673670e305 if you want to send a small amount of crypto. Or: Buy me a cup of coffee here: Paypal.me/beachfitrob

[@JeepyGunner]

5/12/21: Saw your video when my Ryobi 6.0ah 40V died. I called Ryobi and they are sending a new one in 10-14 days. So, like you I was told to recycle the old one, but I tried the other things like jumping it or the in-and-out trick. Nothing worked. I ordered a security bit set from Amazon then when it arrived, took the screws out, used a small paper clip to jump it, then threw it on the charger and it's charging now. Thanks for the great video!

[@RobertBullock]

Please buy me a cup of coffee here: Paypal.me/beachfitrob Any amount is awesome. :) Also: KZbin is making money off these ads. NOT ME. Until I get to 1,000 subscribers, they keep it ALL. It's really unfair but you can help by using my links, making tiny donations, and at least clicking that "Subscribe" method. I've saved hundreds or thousands of dollars for people, and KZbin is making money off this...so help me out. Please use my links: I'm underemployed. KZbin is one of my part time jobs. :) Subscribing costs you nothing and I need to get to 1000 subs! Those ads you see here? I get NOTHING until I hit 1,000 subscribers.

[@jonwoodrum9478]

Worked for me, saved me $100+ on the cost of a new battery so thank you very much Robert ! Liked and subscribed

[@RobertBullock]

Thanks, consider sending me a couple dollars for some Starbucks. :) Few ever do.... paypal.me/beachfitrob

[@edgemooratsunrisepoint8410]

This is helpful. I would like t add that I am stuck at a remote cabin, but have a set f small tor bits. I modified the approach by using a drill bit that is just jess than the shoulders of the Torx, and bit down into the reverse dome of the screw head. This allowed my ordinary Torx bit to sink deep enough to allow me to unscrew the Torx screw. It takes a lot of torque to do this. Also, the same drill but can make mince meat out of the plastic plug, giving me joy. So, if you are stuck without that specialty bit, try the drill technique.

[@jcmjim]

So only one comment. My battery was dead, dead, dead. The reset technique you described worked to wake the battery up, but there was no juice in the battery so as soon as I plugged in the charger, the 4 blinking lights popped back on. I remembered some other video that said to put a charge on the battery, use a fully charged battery and connect + on good battery to + on dead battery, and same with negatives. So I shorted RST pads again to wake the dead battery up, then I put + to + and - to -. Caution - if you do this, BE CAREFUL! My wires started getting really hot so I pulled them off until they cooled down and repeated about 4 more times. Now when I click the test button, I got a single LED to light up, telling me there was a small charge on the dead battery now. Reassembled dead battery, put it on the charger and there you go! So if Robert's technique doesn't work right away, maybe your battery is dead like mine was.

[@RobertBullock]

Disclaimer: this can be dangerous and cause burns or explosions etc. if you're not careful. Yes, it's basically unmetered power. In theory, infinite current. Small wires will get hot quick so a few seconds at a time just to bring the votlage up so the charger will 'see' it. That's why 0 volts never will work. Charger doesn't see it. Too low and it will refuse to charge as that can also be dangerous.

[@YnotDoit]

Thanks for the tutorial. I had all the tools . So it was fixed in about ten minutes.

[@RobertBullock]

Please use my links: I'm underemployed. KZbin is one of my part time jobs. :) Subscribing costs you nothing and I need to get to 1000 subs! Those ads you see here? I get NOTHING until I hit 1,000 subscribers. ETC (Ethereum Classic) Address 0x866d3ACB0c852acc4E8b4E944E9C54673670e305 if you want to send a small amount of crypto. Buy me a cup of coffee here: Paypal.me/beachfitrob

[@Dzer63]

really do appreciate this video. yet another success story. I have a ryobi 40v 5ah battery that flashed all 4 lights when you pressed the status button. pulled the cover and jumped the two holes with a pair of pliers and a staple bent in half and it worked. I used a small straight blade screwdriver and easily popped those little center pins out so I could get my star bit in there. Hitting that subscribe button Robert. Thank you

[@RobertBullock]

Thanks! Some people send me a few bucks or Subscribe for the least amount I could ask ($1) at www.patreon.com/RobBullock

[@shawnkirkpatrick4009]

A year later and this video is helping people still. Definitely subscribing!

[@RobertBullock]

Thanks!

[@asolano]

Wow! Took me literally 5 minutes to do this. Did not have to cut the label as the cover swings open once the screws are taken off. Thank you!!!

[@RobertBullock]

You can buy me a cup of coffee here: Paypal.me/beachfitrob Please subscribe so KZbin will start sharing ad revenue with me. You know that ad before the video? KZbin put that there and is keeping all the money until I get more subscribers and watch time.

[@danieldellapostajr.9012]

Thanks Robert! Just fixed a 4Ah and a 5Ah that have been sitting on the shelf for a year.

[@RobertBullock]

You da man for that donation! If half the people who have saved batteries gave me a few bucks. :) Like and Subscribe if you’ve got a second and at least You Tube will pay me for the ads they run. It’ll help.

[@KenSimone]

Thanks! That worked! I managed to open the battery w/ a normal torx bit since that's all I had, but I ordered the set from your link anyway, since you saved me $80 bucks.

[@RobertBullock]

Thanks! Please like and subscribe and if you like, send me a cup of coffee at Paypal.me/beachfitrob

[@itsbarnacleman1290]

You are a true legend! I’ve watched 10+ videos and still no solution. After giving up for a few days I turned on KZbin and your video was recommended. Thank you so much!!

[@RobertBullock]

Look at the pinned comment and please at least Subscribe so the ads earn me revenue. KZbin is keeping it all right now. Also, coffee donations appreciated! Buy me a cup of coffee here: Paypal.me/beachfitrob

[@Cayennem1st]

Bought a blower off ebay, bat was DOA (likely why it was on ebay) reset it, now it works!!! Thanks

[@RobertBullock]

Thanks. Please Like and Subscribe and if you can, buy me a cup of coffee as I'm underemployed -=> Paypal.me/beachfitrob

[@timaubuchon9157]

Thanks - this saved two of my Ryobi batteries and was super fast and easy. Just a regular Torx T10 worked fine for me.

[@RobertBullock]

Consider a donation PayPal.me/beachfitrob :)

[@dingoboy66]

God bless you sir. Had every piece. Took less than 5 minutes to fix my two dead batteries. Thank you thank you.

[@RobertBullock]

Don't forget to like and subscribe at least. Some people send me a few dollars. Help me out since I'm underemployed and I helped. :) Price of a Cup of coffee fair? www.paypal.com/paypalme/beachfitrob

[@brickelljoe4252]

Thank you. You saved me $180 on a new battery, this worked like a charm

[@RobertBullock]

YW! Was that you who sent me $10 via paypal.me/beachfitrob? Someone did. Please Subscribe. Per KZbin rules I get $0 from the ads they play until I have 1000 subs and a certain amount of view time.

[@chrissturtevant5777]

This video saved me big money. Thank You!!!

[@RobertBullock]

Please like and subscribe especially since KZbin shows ads but **DOESN'T pay me** until 1000 subs. Some people send me a cup of coffee at paypal.me/beachfitrob TY!

[@chrissturtevant5777]

@@RobertBullock Done

[@larrynettleton3262]

Thanks so much !! Fixed for $7 - torx set. FYI-- used paper clip. Also I stripped one of my screw heads, so I would recommend NOT using a drill to put them back in.

[@RobertBullock]

And thanks for the donation! I REALLY appreciate it. Please like and subscribe. My channel means little without viewers.

[@JesusTorres-dr7nt]

thanks alot man really appreciate a guy like you helping people out you just saved 3 of my batteries from goin the grave

[@RobertBullock]

Please Subscribe so at least I get paid for the ads KZbin shows. They give me nothing right now. Also consider buying me a cup of coffee since I just save you at least $200+. :) paypal.me/beachfitrob Any amount is appreciated.

[@michaelcaulfield5884]

Thank you! Like others have said I tried multiple different things seen on other videos (plugging in/out continuously, using a second battery to "jump" this one), nothing worked. This worked like a charm.

[@RobertBullock]

Buy me a cup of coffee here if you like: Paypal.me/beachfitrob Please like and subscribe.

[@troygeiser6619]

Great job! Saved me $100 and got me an extra battery. Thank you Robert!

[@RobertBullock]

You're welcome and thanks for the follow!

[@ntssw]

Wow. It worked. I hate to think how many batteries have been trashed because people didn't know how to do this.

[@RobertBullock]

Yup. I’ve reset a few. Have 6. Please like and subscribe because KZbin shows ads on my videos but won’t pay me until I reach 1000 subs. McDonalds coffee via PayPal.me/Beachfitrob

[@ntssw]

@@RobertBullock Well darn. It only would charge up to 2 bars. After mowing the yard till the battery died, it's back to the 4 flashing lights and won't charge. I guess I need a new battery.

[@vicmuno26]

Awesome! Super easy. I tried several other ways I saw but this was the easiest and it worked! Also, found another video and found the Ryobi replacement number. They have 3 year warranty. Mine was expired about 4 months. They are still sending me a new one anyways. No warranty on it. But still!

[@RobertBullock]

Thanks for liking and subscribing! Some people send me coffee money since I’m underemployed. Actually I’m really trying to invest as much as I can. So, I’m using donations responsibly. :) Any amount is awesome: PayPal.me/Beachfitrob

[@DetFury50]

worked for me! i used insulated wire… put in both holes n left it 3 second … it lit up green n bam back in action taking charges again.

[@RobertBullock]

Please read the pinned comment. :) Probably the one below this. :) Plus: Paypal.me/beachfitrob anything helps. I get a lot more 'It worked! You saved me $100!' than people who send me a little something.

[@bradbeebout2711]

Worked like a charm, battery hasn’t worked in 3 weeks, now, money. Took me longer to get the screw cap off than to fix (jump) the battery

[@RobertBullock]

Yay! Thanks for the sub. Coffee also accepted: paypal.me/beachfitrob

[@davidebel39]

Thank you SO MUCH for this! I was not optimistic this would work for me but it did. It was super easy too once I ordered the security torx. I used a paper clip to touch both sides of the reset and it did the job. Battery is charging again.

[@crazymaloco5890]

How long do you hold the paper clip in for?

[@davidebel39]

@@crazymaloco5890 - less than five seconds it seemed like. I bent it such that each prong went into each hole and was careful not to touch anything else. You’ll see a light flash when it resets.

[@RobertBullock]

@@davidebel39 Yes, as mentioned, some people might have to use a tiny drill bit to scrap away some green coating inside the hole. But it may not be necessary.

[@coreyreimer8517]

Worked perfectly and quickly after trying multiple other "fixes"

[@RobertBullock]

You can Buy me a cup of coffee here: Paypal.me/beachfitrob :) And please like and Subscribe. Read the top comment on this video for how KZbin hursts us small creators.

[@gusflores]

It worked for mine but I had to touch the button while I was jumping the reset, thanks for the great tip.

[@RobertBullock]

You're welcome. Would you please like and subscribe? KZbin makes money off the ads in my video but they pay me zero until I get 1,000 subscribers. Also, I like coffee if you want to buy me a cup: Buy me a cup of coffee here: Paypal.me/beachfitrob Thanks! Anything is appreciated.

[@scottgibson6362]

Your suggestions worked! Thank You, Very Much!

[@RobertBullock]

Don't forget to like and subscribe at least. Some people send me a few dollars. Help me out since I'm underemployed and I helped. :) Price of a Cup of coffee fair? www.paypal.com/paypalme/beachfitrob

[@americanpatriot-usaf]

Made the call to Ryobi on my OP40501 with the blinking red/green on the charger and 4 blinking green on the battery resulting in no charge. Ryobi took my info (easy) and told me that my battery (OP40501 - 5Ah battery) was currently on backorder, which they ordered for me, but they would be sending me a battery in stock right away. So I followed Robert's instructions and now have a battery that will take a charge with two replacement batteries on the way.

[@RobertBullock]

Glad it worked! Send me a cup of coffee here (or more, maybe 1 cup per battery?) Paypal.me/beachfitrob and please Subscribe as I'm not even getting ad revenue. Yup. You read that right. $0. Read the pinned comment on this video. Need 1000 subs at min. But they still show you ads. I just don't get paid for it. Yay for us little creators. :STEAMY EARS EMOJI:

[@Knobelkopf]

Worked perfect. Saves me $179 for a new one! Thank you

[@RobertBullock]

You're welcome. Would you please like and subscribe? KZbin makes money off the ads in my video but they pay me zero until I get 1,000 subscribers. Also, I like coffee if you want to buy me a cup: Buy me a cup of coffee here: Paypal.me/beachfitrob Thanks! Anything is appreciated.

[@dragan3290]

Subbed and liked. I tried fixing my neighbors 36 volt lithium ion battery. I used a DC to DC converter. I got up to 3/4. Still would not charge. I'm an electronics techie but in Australia??? Forget it! No components!

[@RobertBullock]

36V or 40V? Did you jump RST and hit "gas guage" button at the same time?

[@dragan3290]

@@RobertBullock yeah it's a 36 volt. It dead shorted the battery. So I'm going to recycle cells for headlamps.

[@andysinger4147]

Great item, saved me a battery, My Battery had like caps over the two end screws, uses a dental pick to pierce and pop them off.

[@RobertBullock]

Buy me a cup of coffee here if you like: Paypal.me/beachfitrob Please like and subscribe.

[@MeetButthead]

OK Ryobi 40 V battery reset thank you very much without your video I was gonna have to buy a new battery my battery is now currently charging

[@RobertBullock]

Buy me a cup of coffee here :) Paypal.me/beachfitrob And please like and subscribe. KZbin shows ads but I don't get any money from it until I hit 1000 subs.

[@alexfps9684]

WENT TO HOME DEPOT TO GET ANOTHER BATTERY $139.00, THE TRIMMER BATERRY AND CHARGER $159.00 DOESN'T MAKE SENSE..THANKS FOR THE VIDEO YOU SAVED ME $139.00 PLUS TAX

[@RobertBullock]

Buy me a cup of coffee here :) Paypal.me/beachfitrob And please like and subscribe. KZbin shows ads but I don't get any money from it until I hit 1000 subs.

[@MichaelJones1527]

Well you had 999 subscribers when I subscribed so I hope that I was NUMBER 1000 for you. Good luck on growing the channel.

[@RobertBullock]

Thanks, I now show 1000 so you very probably it!

[@loulocander559]

Many thanks...the fix is right on the money !!

[@RobertBullock]

My standard request. :) Help me out since I'm underemployed and I helped. :) Price of a Cup of coffee fair? www.paypal.com/paypalme/beachfitrob Subscribe to my channel also needed so I can earn income off it. I also take crypto if you want to send that. Ask me for an address of your choice.

[@vinylux9414]

Thank you for explaining how to fix the charging issue! You have a new subscriber.

[@RobertBullock]

Was it you who sent me $10? If so, TYVM!

[@Vintagetrailer]

Thanks for taking the time to make this video Robert, worked perfectly !!!!

[@RobertBullock]

You're welcome. I know I make this request over and over, but Would you please like and subscribe? KZbin makes money off the ads in my video but they pay me zero until I get 1,000 subscribers. Also, I like coffee if you want to buy me a cup: Buy me a cup of coffee here: Paypal.me/beachfitrob Thanks! Anything is appreciated.

[@broc2238]

Thanks for the video. Got my 1 month old battery back up and running, presumably after I overloaded it

[@RobertBullock]

You're welcome! Don't forget to like and subscribe as this channel has become my part time job. Buy me a coffee as you'd buy your buddy a cup for helping out. :)

[@lonestarz71]

Too cool man! So glad i found your vid, I figured it would be something easy like that after having a similar problem with a 48V golf cart batt that got stuck in limp mode. Thank you for sharing! My father in law gave me this 40V 4AH batt and several tools after the batt stopped charging for him but it’s working great now.

[@gregstoever8282]

Thanks, now charges like new. Thanks again.

[@RobertBullock]

Please Subscribe so at least I get ad money. Some people Paypal me: PayPal.me/beachfitrob

[@kpsingleton]

Thanks! You saved me a new battery. I'm subscribing & donating.

[@RobertBullock]

Thanks so much! I really appreciate it.

[@PaulHanak]

This so cool man. I had noooo problem liking and subscribing! Fixed my battery instantly. Buuut I do have another 5ah battery that has a different board that you have. Can you tell us what you are actually jumping? Are they labeled to where I can find corresponding ones? The issue with mine is meter reads fully charged, and the charger doesn't charge it because it's "fully charged" but yet it's only putting out 17volts. Happened out of nowhere. :( Thanks!

[@RobertBullock]

Thanks man! As for that board, sounds like half of it died. The board is split into two sections, each putting out around 20 V. Follow the big traces and measure the two sides but BE CAREFUL. The curent will vaporize metal instantly, so it's very dangerous and can lead to 2nd degree burns, eye damage, etc.

[@jeremyqbagley]

Worked exactly as shown in the video. Thank you!

[@RobertBullock]

Yay! Don't forget to Subscribe so I can monetize this channel...it's my part time gig...and I accept McDonald's coffee money here: paypal.me/beachfitrob I'll take whatever amount people are willing to give. :)

[@MattMascolo]

Thank you sir, this just saved me at least 100 bucks!

[@RobertBullock]

A few people buy me a cup of coffee as a Thank You. :) Buy me a cup of coffee here: Paypal.me/beachfitrob Please use my links: I'm underemployed. KZbin is one of my part time jobs. :) Subscribing costs you nothing and I need to get to 1000 subs! Those ads you see here? I get NOTHING until I hit 1,000 subscribers.

[@delbertvoss9193]

Thanks, it actually worked. I Will be viewing more of your videos.

[@RobertBullock]

Buy me a cup of coffee here if you like: Paypal.me/beachfitrob Thanks for the sub!

[@Control-Freak]

Sorry you are having KZbin troubles, I have tried the reset but after going from four blinking lights to one blinking light and right back to the red green flash. I am going to try charging to 30 V + and seeing if that helps. Power supply and voltage booster inbound. Just wanted you and others to know it may not end with the reset pad short method.

[@RobertBullock]

For sure but it works for a lot of people. And it's pretty easy and pretty safe.

[@Jerry-vt4zf]

You're a life saver! I'm from Australia and we have 36V so I wasn't sure if it worked. Massive legend mate 🤙👍

[@RobertBullock]

Please give us a Subscribe so KZbin will actually pay me for the ads they show WITHOUT paying me...so wrong...or donate a dollar (Australian ones accepted) at paypal.me/beachfitrob...finally, I also take crypto if you want to send me a few satoshis. :)

[@frankziberna6437]

Thanks for the information. Worked perfectly for me. Battery is charging. Much better than some of the other ideas I had seen.

[@RobertBullock]

Thank you. Some people send me lunch money at paypal.com/beachfitrob since I have saved probably thousands of dollars for people at this point. Wonder if I should add a crypto address. :)

[@EquitasX]

This fix worked perfectly for me! Thank you so much.

[@RobertBullock]

Like and Subscribe. KZbin is kinda a job since my company doesn't exist anymore.

[@Swenser]

I've got a different version of board here in Oz. But there is still a position marked as RST or reset. I think you need to put that pin to gnd. Best use a 1k resistor. Also I'm finding the MOSFETs used develop a high drain to source resistance in on state. Should be .004 ohm by data sheet but can raise to kilo ohms. Causing no go. Or very inefficient operation. I recommend checking and probably replacing MOSFETs anyway.

[@RobertBullock]

Beyond the scope of this video but interesting. Inefficiency probably doesn’t matter so much given a relatively short runtime.

[@Swenser]

@@RobertBullock by inefficiency here really means more than mild stuff but getting half the runtime of your lawnmower which can be frustrating .half the power going into feeding the Resistance across drain and source of the MOSFET switch. Because of the heat at mosfet the problem gets worse and puts strain on batteries and charger more and more until MOSFETs fail to allow operation and or batteries cid pops. The online ratings on Ryobi 36v batteries is quite poor and I'm wondering if bad choice of MOSFET is the general reason why .

[@xironfenixx]

You are a boss man!!! This took me like 3 mins!!! Wow. Genius lol thank you!

[@RobertBullock]

Thanks! Some people send me a few bucks or Subscribe for the least amount I could ask ($1) at www.patreon.com/RobBullock

[@RobertBullock]

Note: one thing I am careful of is not to run the battery til it stops due to low voltage. I check and if it’s on the last bar I stop. I have a sense about when it’s due.

[@drewrx9665]

Thanks for this! Was gifted a non-working Ryobi mower. Found issue to be battery defective at charger. Tried the 'jumpstart' method with new battery first - no dice. Found out that battery needed reset from this vid, but would only work for me with RST pins shorted as battery was being jumped. Probably due to extremely low voltage level battery was at. $230 mower for free! Also, if you don't want to cut through the sticker, it's easily pried-off with a razor blade and glue will still hold when put back together

[@RobertBullock]

Sweet. Re cutting: I just cut it down the middle for another reason: now I can tell what batteries needed the reset. Don't forget to like and subscribe and coffee donations accepted: paypal.me/beachfitrob

[@joshbrooks7399]

This worked for me. One thing to note I did have to hit the rest button while jumping the reset ports. I tired several times and kept getting the flashing green. When I left the jumper in and hit the reset, the for light came on and stayed on till I removed the jumper. After that I get the single green light indicating the low battery.

[@RobertBullock]

Did it charge on the charger after that? I had a couple like this and IIRC most or all still wouldn't charge, or needed to be reset again after use...so not a 'permanent' fix.

[@stevesaragoza9633]

Oh yeah buddy!!!!! 🎉

[@jeffdha]

Same here can't believe it worked, I watched lots of videos and nothing else worked!

[@RobertBullock]

Thanks for the Subscribe! Thanks if you donated, if not please consider. :)

[@TravisKelleher]

Thank you, I followed your instructions and have successfully saved my 5Ah battery. Hardest part was digging out the plastic plugs hiding the other set of screws. Whole process took maybe 5 min tops. Just to let others know when mine went bad. I was cutting grass with my mower, and I was about 30min into it finishing up the backyard. It was at about 2:00pm on a hot day with the sun blazing. My guess is the heat of operation combined with the intense heat of the day sent the battery into safety mode. Usually I don't do yard work in the middle of the day due to the heat, but that day I had a lot of stuff happening and that was on the list. Lesson learned, I'm glad I came across the solution. Big thanks, you saved me a $150!

[@RobertBullock]

Heat also caused mine to 'fail'. Please read the top pin comment on why KZbin is unfair to small creators: they play ads and keep all the money. Please like and subscribe so I get a share one day (1000 subs needed) and I take coffee donations here: Paypal.me/beachfitrob :)

[@TravisKelleher]

@@RobertBullock Done, checking out your other videos. Cool to see you're into crypto also.

[@merledixon539]

Worked perfectly fixed 2 batteries. Thanks dude for the tip. Saved me lots of $$$$$

[@RobertBullock]

Thanks! Some people send me a few bucks or Subscribe for the least amount I could ask ($1) at www.patreon.com/RobBullock

[@sbeard73]

Worked like a charm buddy thanks!!

[@NoMore4YearsofFailur]

Thanks for the info. I will try it myself.

[@dodge134]

I tried this - Still have (4) blinking LEDs. I was hopeful....

[@shaun536]

I've yet to have this issue with my batteries. But after seeing your video and others on doing this hack to get them working, I think I will mod my batteries once the warranty is up and add a small set of holes that line up with that reset spot and make a custom jumper that I can slide down into the holes to trip the reset without having to open up the battery pack everytime.

[@RobertBullock]

I’d wait. You might never have the issues. I’d wire in a small push button instead to keep the case sealed. It rarely happens on all except maybe 1 of my batteries.

[@lapdog5355]

Worked beautifully! Why didn't they just put in a reset switch? Would have been a lot cheaper that replacing the battery. Mine was a 3ah. They no longer make that one, so they were going to upgrade mine to a 4ah, but, since that one is on back order, they sent me a 5ah! Sweet.

[@RobertBullock]

Send me a coffee :) PayPal.me/Beachfitrob

[@riddlemechris]

Worked for me. Mine was out of warranty and Ryobi just told me to buy a new one. It wouldn't take much to add a small reset switch into the housing. Seems a little scammy on their part.

[@RobertBullock]

True, but not too hard to add your own. Could maybe just use some small screws soldered to a couple of wires that pass through the case. Maybe I should build a kit. :) Don't forget to Like and Subscribe and if you send me a cup of coffee at Paypal.me/beachfitrob then you're in about the 10% of people who do.

[@94sn95gt]

Im actually going to get a little micro switch and add it to the outside of the case on mine. I still cant believe how simple it was to get it charging again. Saved me a couple hundred bucks for a new battery.

[@DerekHerchko]

Thanks for this! Helped me get it opened, but two of my capacitors ruptured.

[@RobertBullock]

Bummer. :(

[@sfoster99]

RST jumped with a paper clip. Saved me $90! Thanks.

[@RobertBullock]

Please buy me a cup of coffee here: Paypal.me/beachfitrob Any amount is awesome. :)

[@taylormccall2332]

How did you do the paperclip?

[@taylormccall2332]

How did you do the paper clip?

[@jareddaniels9013]

Thanks for the video sent you 4 dollars. Better than nothing. Saved me 100

[@RobertBullock]

No I really appreciate that. If everyone who fixed a battery sent me $4....

[@idrankthebleach]

BRO the solder for the jumper trick is a God send. Thanks so much. The sumbitch is charging!

[@RobertBullock]

You can Buy me a cup of coffee here: Paypal.me/beachfitrob :) Don't forget that Subscribe. Read the top comment on this video for how KZbin hurts us small creators.

[@luismonica209]

You Sir Is My Man!! Worked Perfect. Thanks Alot

[@RobertBullock]

Don't forget to Like and Subscribe and if you send me a cup of coffee at Paypal.me/beachfitrob then you're in about the 10% of people who do.