Kobalt 80V Battery Recovery and Teardown - ElementalMaker

Found this battery at the recycling bin at the local hardware store. Here is my shot at recovering it and taking a look at the inside. This battery is identical to the greenworks 80V and the 82V Briggs and Stratton. I mistakenly said snapper in the video.
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[@antoineroquentin2297]

in case you don't have a power supply you can use the working 80V battery and a resistor to burn down the shop

[@ElementalMaker]

I like your style 👍👍👍

[@williammolineux1059]

Where can you buy a power supply

[@tako1257]

Me sitting here who caught the whole table on fire with a 9v battery 👁👄👁

[@grandpaworks8632]

Wow what lowes give away free dead batteries? I can't find a lowes or home depot that will let me take dead batteries.

[@hduff]

What value resistor?

[@Pappylaz]

Don't know if this was posted here, too many replies to sort through but, the Kobalt and Greenworks batteries are essentially the same and will work in each others tools. Their battery case has grooves slightly different from each other so initially one brand battery won't slide into the other's battery pocket. I took a wood chisel and removed the one offending ridge on each side of the battery pocket on my Greenworx chainsaw, leaf blower and snow blower to use a couple Kobalt batteries my son gave me. He did the same thing with his Kobalt mower to use Greenworks batteries. We also modified the chargers by removing the upper ridge to allow either battery to charge in our respective chargers. Two years now with no issues.

[@jon_byler]

made by the same company.

[@AMV291]

Dumb question over here.. why didn't you just exchange batteries?

[@frosteone1670]

Worked for me. 80v battery left in blower, was down to 40v, wouldn't charge, charger flashed red. Took 2 12 gauge wires and just held them connecting + to + and an other - to -, after a minute the low battery would take a charge. Nice!

[@jonathanjanzen5231]

Curious how long it lasted? I hear when it gets that low it can be damaging to the battery (starts to eat itself I guess?). 40v is ~2 volts per cell which is pretty low, possibly damaging.

[@dogphlap6749]

I have a Kobalt 80V lawn mower and my experience is when the mower stops because the battery is discharged none of the green LEDs light when the button is pressed and the battery is down to 65.5V. Putting the battery on the Kobalt charger can sometimes result in nothing appearing to happen for a while other than a red light. After a further while it comes good and starts to charge fine, I my case I just need to exercise some patience. Thank you for the video, I was trying to disassemble one of these packs who's cover did not want to come off after I'd removed the 4 security screws. Your video gave me the courage to tug a bit harder (which worked).

[@JeanPierreWhite]

@@realdeal1841 Replacement packs are extortionate. Cheaper to buy a new tool that comes with a brand new battery when there are special deals on, like today Memorial day sale. As for being cheap Chinese designed to fail, I have to disagree. Most Kobalt packs are made with Samsung brand cells made in South Korea. They are designed for 250 cycles. May not sound like much but if you do yard work 25 weeks per year that's a 10 year battery life. The important thing is to take good care of the battery packs. Don't let them run too low on charge and store at 50% during the winter months. During the summer I cycle between 25% to 100% state of charge, and store at 75% if possible.

[@DaveHaynie]

Also, thanks for the tip! I had a Kobalt battery reading 56V and being rejected by my charger. I fired up my dual-30V bench supply, put both channels in series, managed to charge it up to 61.5V, at which point the fast charger would take it. Looks like I saved $150 at least for today, plus a trip to Lowes. Thanks!

[@ElementalMaker]

Hopefully it lasts for you, unfortunately mine only lasted another season after rescuing it. I may replace the cells and charging circuit though, since it seems like the oem kobalt charging circuit is what's killing the cells

[@DaveHaynie]

@@ElementalMaker Yeah... it worked for awhile, but eventually died again. Hard to tell if it was actually a worn-out battery, or if the prolonged low charge level killed the cells. I wound up shopping around and found Greenworks batteries for substantially less. Sure, they're keyed differently, but if you take the battery apart, and put the Greenworks cells in the Kobalt case, it works just dandy. I know some people route the plastic instead, which is also a possibility. I imagine they use the same molds with a different insert depending on who's battery they make. Bastards!

[@bendejo9971]

No bs edited proof! One person’s trash is a working person’s treasure. You remind me of Ave Boltr. Thank you for keeping it ad free.

[@evanramee796]

I forgot to keep 2 of these batteries charged over winter and they read around 3 volts. With a cheapo 60v power supply from Amazon, and about an hour or so, I revived both batteries. My advice if you do this project, be aware of Constant Voltage and Constant Current settings on the power supply and practice with the supply before you use it. Aside from that, Great video and Good luck!

[@hjeffwallace]

I have a dead 80v that was dead. It was down to 35v. I woke it up by using a good 80v battery. Just used a couple of 14 gauge solid core wires to jump it for 5 minutes. It didn’t get hot, and now takes a charge. Thanks for the video.

[@ElementalMaker]

In the future I would highly recommend using a resistor between the batteries, otherwise you could cause some serious damage to both, something like a 100ohm power resistor (100w would work), to limit current to about 1 amp.

[@DaveHaynie]

@@ElementalMaker I'd go for a much lower charging current for this. Li-ion batteries, as you probably know, are best charged at constant current up to about 3.9V (depending on the chemistry), then constant voltage. Do it wrong and you damage the cell. But they don't get any significant damage from a trickle charge. So put 100mA or less into it and you're probably pretty good... it takes longer, but it's less stress on the battery.

[@Jer_Schmidt]

Just bought one of these (along with the mower) and came to KZbin to find out what's inside. Now I don't have to tear it down myself. Thanks for the video!

[@ElementalMaker]

They seem like pretty good batteries! Just don't run them totally dead on hot summer days and the batteries should last you some time. 👍

[@Jer_Schmidt]

@@ElementalMaker So when you run it totally dead at high temp, then as it cools it goes below to low voltage cutoff? Is that correct, that causes the situation you had here, where the voltage is too low to let it charge? I'm on an ongoing quest to understand Li-ion batteries...

[@ElementalMaker]

You are absolutely spot on Jeremy. Very well said. The cutoff voltage seems to be right around 60V, and if it drops below there it bricks the battery unless you have a good power supply you can manually raise the voltage with.

[@Jer_Schmidt]

ElementalMaker Cool, thanks for the info!

[@Runnerb03]

@@ElementalMaker Have you ever tried finding replacement circuit boards for that type of battery? I've tried the jumper method and while I can get the voltage back up it will wont charge on the charger and it will only allow the mower to start up and then die. My briggs and stratton 82 volt batteries aren't lasting, i've had 2 that die.

[@gregfeneis609]

One of the downsides to cell balancing circuitry is there's always a wee bit of leakage current. On a lithium ion battery pack with battery protection circuit, and cell balancing, there's always the unlikely possibility that the user would use the battery until the battery protection circuit prevents further discharge, then the pack gets lost or otherwise doesn't make it back to the charger, and the balancing circuitry leaks each cell's voltage so low that the total voltage is so low that the charger blinks the red light. Page 3 of the charger manual goes into detail on "False defect note" (what to do when the red light blinks), and "Low voltage charging" (recovering the battery pack from extremely low voltage) The thing is, the manual doesn't mention what the led indicators do in this extreme low voltage charging condition. Please also note that the manual was written in a geographic location in which English is not the primary language. It might be worth investigating whether when the battery pack is extremely low as in this video, and is inserted into the charger, and the charger's red light blinks, measure the battery current and confirm that it's not charging at all. In the case of the pack in this video, the pack voltage may have been so low that there's some liability involved in attempting to charge it.

[@ivanmcdaneld2774]

I can't believe I found this video on my first attempt. I received a cordless Kobalt 80V weedwacker for my birthday this week. My daughter who works at Lowe's brought me a returned battery from the back, unsure of it's condition. It showed dead in the charger and when I pushed the button on the battery. Thank you for proving that these batteries can be recovered. Now I need to get a power supply. By the way, the 19th century wrench you showed us on your video looks exactly like one I inherited from my grandfather. He called it a "monkey wrench."

[@evilsushi1]

@@realdeal1841 I've had Kobalt 80v yard tools (mower, leaf blower, bush trimmer, weed whacker) for over 3 years now and haven't had any issues with the batteries or the tools and I've abused them thoroughly.

[@DaveHaynie]

@@realdeal1841 Not all Li-ion batteries are the same. These are probably using Lithium Manganese Oxide (LMO) cells, which offer a higher specific power than the typical phone/laptop Lithium Cobalt Oxide (LCO) cells. They are optimized for high power, not high specific energy. And yeah, unfortunately, LMO batteries don't last as long as LCO batteries, but as well, you're probably not weed-whacking 10 hours a day, every day. Keep in mind, 18650 is just a physical spec for a battery size, no indication of what's inside. This is also why, if you wanted to replace the 18650s in the Kobalt/Greenworks battery, you'd need to really do your homework. You can find 3-5Ah 18650s, but they're probably all LCO, not capable of the peak power needed by electrical tools.

[@terryspooner128]

This was just what I needed. I have EXACTLY this problem with a KOBALT lawnmower battery.

[@Las_cacas]

Same issue, did you ever resolve?

[@gvii]

That's awesome, especially since I imagine that big ol honking pack can't be cheap. Pretty cool design too. I buy and repair DSLR cameras all the time, and they end up coming with usually dead batteries. They're not that exciting, usually only two cells. It's typically one cell that gets below the cutoff and kills it. I just pop them open, ease the low cell back up, charge the pack to full at a low rate, then just do a couple full load cycles before I'm comfortable putting it with the camera when I sell it. But that's friggin awesome. That 80 volt is a nice haul even if you're just at it for the cells alone.

[@woyeshinibaba]

thanks dude! i don't have a current source, i don't have a proper resistor, so i have to try the jump start with another battery. a bit scary though because there's spark.. i know I should've used a resistor.. anyway, two touches and the voltage of the dead battery boosted to slightly above 20V, and now it starts charging! you are awesome!!

[@mherock]

Absolutely works. Charge up the good one and then jump positive to positive, neg to neg to the bad battery. It is easily displayed on the battery case. After about 10 minutes the power button on the bad battery lit up. Then put it in the charger and it charged right up. Works fine now!!

[@dennisbarber3371]

Great video! Very informative. Thanks to another comment about connecting a good battery to an unchanging one I was able to revive my second battery. If anyone is wondering I used 14 Guage wires for about 5 minutes.

[@jeffpatterson9515]

How did you do this? Did you use a resistor?

[@pjesapjes]

always good too see a video from this dude ! keep it up mate, greetings from iceland

[@cmdrcowboy]

I am 70 and have worked on a lot of machinery, My father who had a 1932 ford had a wrench just like that and he said it was called a "Ford wrench". Don't know if that was all it went by alot of tools have different names depending where they come from. Great looking.

[@Scatch85_YT]

Remember seeing this video ages ago. Was going through the garage mounting ally 80v chargers and 3d printed battery holders etc. Had one 80v battery crica 2017 that would not charge and no lights. Took it apart hooked up the power supply set it to 80V 2A and let it go. A few minutes later I had green lights tested iton a charger and it was golden.

[@reesechris76]

Where can i get a power supply like what you used to recover the battery

[@VMykeV]

Word on the street AVE has a hell of a tongue.

[@markc2643]

I've got the same weedwhacker plus the lawnmomer, chainsaw, and 4 batteries. They all work quite well.

[@normanchambers7929]

Just put battery in my Kobalt string trimmer today and it has no charge. Put back on charger and nothing. Great video. Now I have to find a way to get this back up to 60v threshold for the charger. Maybe you should start a business on the side. Mail in service for resurrecting these batteries. Just checked and Lowers want $199 for a new one. I pay only $179 for the whole trimmer last year.

[@The_Kayak_Guy.]

Easiest fix on these batteries is to simply jump them to another good battery for a min or two then charge it. I have done this multiple time and it works great

[@RGIIIBOXING]

I AGREE WITH YOU " I GOT ALOT OF THEM BACK IN SERVICE...BUY JUMPING THEM... HE'S RIGHT" IF THE BATTERY IS SO LOW" IT WANT REGISTER IT EVEN SITTING IN THE CHARGER" ....I USE THESE BATTERIES TO RUN MY E - BIKES 🤭🤫😂👍☑️☑️☑️

[@BobPaul]

Kudos to you for charging at 250mA. It's not a good idea to charge at high current when discharged below the minimum voltage. But charging at a very slow speed until in the normal range is generally considered safe. And yes, that battery is definitely made by Greenworks. Snapper and several house brands are just rebranded greenworks. The only difference between that battery and the greenworks branded one is the location of the grooves in the plastic outershell.

[@ElementalMaker]

Agreed, some folks have apparently just jumped a bad battery with a good one, talk about a recipe for disaster! Thanks for dropping a comment Bob!

[@jcadult101]

Just recovered a 2 year old 80v Harbor Freight Atlas battery ($110) that would start the trimmer, but immediately shut off recovered using this method. Put it on the charger, flashing red. Checked voltage, 38+v each leg. Press the test button, 3 lights. Put it on the charger it would start the fan, then flash red. Connected same aged charged battery to each leg for some minutes, same issue. Connected a new, fully charged 40+v per leg for 5 minutes each leg and this time it charged.

[@therealjammit]

Sounds like you need a suicide charger. It requires a 25-ish watt incandescent light bulb, bridge rectifier, and an AC mains plug. You hook the bulb in series with the bridge rectifier. The bulb limits the maximum current and the bridge converts the current limited AC into pulsating DC. The name of the device is self explanatory.

[@christopherleubner6633]

I've charged em up with a low wattage incandescent lamp a brige rectifier and a literally plugged in the wall. Charge to about 70V then pop in the charger to charge normally. Definitely take it apart and measure the cells to make sure you don't have a flat cell or two.

[@davidmichael3137]

I too felt excited for you when that worked...I need this power supply :)

[@BenjaminNelsonX]

I have that EXACT same wrench! It's great!

[@OMNITEK]

what is the name of that power supply?..or if you have an affiliate link to it would be better.,...amazing video btw, thanks a lot.

[@michaelvaldez2955]

My dad developed back problems. Had these batteries sitting for a few years. Wouldn’t charge. No red light on charging dock. I hooked up plus and minus and charged it for a minute. Then put on the factory charging dock. And it is charging. Thanks.

[@nationofgandhis]

There is a 20 hour "recovery" charge noted in battery manual

[@kommoncents0000]

My Kobalt 80V batteries charge up fine, but after 4 years the batteries have a shorter run time with the same equipment used. Can the 18650 be swapped for new ones ?

[@swampflux]

I wish you'd showed more clearly what settings to use on your multi-meter and power supply. Maybe add to the video description please

[@lucypabst262]

Yes. Snapper has electric garden supplies. My Briggs and Stratton batteries are dead/totally not charging properly. I’m going to try out your trick.

[@peterfitzwell9658]

I've got that same wrench! I just bought it at an indoor flea market for $3!👍🏼

[@ElementalMaker]

I think you may have deleted it, but I saw you left a comment wanting the Black & Dicker battery. Let me know if your still want it 👍shipping should only be a few bucks. I just need to double check the cell is still good. I think it had like 19V still

[@peterfitzwell9658]

@@ElementalMaker Yeah, after I posted it and read it, it kinda sounded (to me) like I was trying to bum a battery from you lol. I appreciate it but I don't have the $ at the moment for the shipping. Maybe a month or so down the road when I get caught up on things, and am able to pay for it, I might check back with you and see if you still have it.👍🏼

[@jimmyjarrett7302]

@ElementalMaker I don't have a Power Supply, can you advise if it's possible to use one good batter to charge another one the way you did with the power supply? Also, what type of connectors were you putting in there that allowed the clip on for the Power Supply? They looked like they worked really well.

[@tech29X]

Try paper clips for connector or solid conductor wire; 12AWG should do it. One good battery to bad should be done using a resistor in series (such as 25W rated capacity with aluminum heatsink).

[@ddmitrie]

GreenWork is absolutely identical, except position of those two rails closer to bottom. So it won't fit until you remove the rails

[@DerangedX]

Recently did the same thing with a Dewalt 60V battery I rescued from the return bin. Sadly one cell was dead fully and wouldnt recover. So un clipped it and soldered in another that matched specs and for about 4 bucks I got a new battery. Haha

[@ElementalMaker]

Nice! Can't beat that deal!

[@cruelmarksman116]

I fucking love your channel thank you so much for the hard work putting the videos out

[@innovativeyouthcare6488]

Completely professional and personal individual care !!

[@atlmacman]

I really appreciate this video. Thank you very much!

[@jingles791]

what are the l ittle pins you plugged into the battery?

[@silv3rh4ze4]

I have 2 dead 80v's. Is there a resource that goes into detail how to test/repair them? One of my 80v was like yours, would not even light up on the indicator. I have another that shows 2 green lights but will blink red on the charger after a few seconds. I actually have one of those power supplies but I am not confident on how to use it. I would love to save some money here, much appreciated if you can help.

[@malabarspyder]

I like that PS - mine won't go that high. One of my 80b 2AH batteries is wack. When I try to use it , it will power the tool (mower, chainsaw, blower, etc) for 1-2 seconds, then I get the dreaded BEEP BEEP which generally means it needs a charge. Oddly the light all 3 lights are on. When I place it on the charger, the fan comes on, and light #1 blinks. Which is also strange since it showed near full-charge. It after about 10 minutes, all 3 lights go out, but the charger fan continues to run- Which should never happen. And it acts the same in the tools no matter what. I tried it in the blower on very low power hoping to coerce it to work at low current but no joy.. My plan is to try to DISCHARGE it- I've had some success in the past getting a good DEA battery, and after that it worked. Sorta the opposite of your success here..

[@jleacole]

Hey! Did the discharge work? I'm having the exact same problem with one of mine.

[@hyperhektor7733]

damn i expected a radioactive Cobalt Battery, i am supriesed you handle these normal topics xD

[@Jake-dp1if]

How do you get away with digging in the Lowe's recycling bin? Every time I dig through the recycling an employee fights me off with a broom like a raccoon digging through the trash

[@ElementalMaker]

I talked to the manager of the store about a year ago to make sure it was okay (told him I recover the good cells and return the bad) and he said no problem. It still feels a bit awkward, but nobody really bats an eye

[@willietheboggle3954]

Came down for this comment. Usually talking to people will get you what you are looking for.

[@Christopher040601]

This is the comment I was looking for because I wanted to know how you got away with taking free batteries.

[@Homer19521]

The Kobalt & Greenworks batteries have different slots so they will not fit each other unless you modify the tool or battery housing. There is a vid on how to do it. Good vid. Thanx.

[@davidaltonberg8986]

Where is the video on how to modify the tool or battery housing?

[@Homer19521]

@@davidaltonberg8986 kzbin.info/www/bejne/eWiucpWmecdlh5o

[@oticon211420]

So I work in an industry that uses 18650 lithium ion batteries those batteries according to the color of the wrap look like Sanyo brand batteries which is a damn good battery which they are a 3450 mAh 10A IMR those would be a damn good battery for a powerwall love your videos keep up the great work

[@swilliams7680]

You said you got batteries from the lowes return bin? Do they charge for them? Do they say anything about it?

[@marks47]

I was curious about this a year ago.... Still wondering, but I think they removed our bins.

[@Las_cacas]

I left mine charging in the cold and tried to use it with the chainsaw, went blank and died right away, think I messed it up... Curious to see if I can fix it... Very annoying but lesson learned

[@kenc_sr.8857]

When these batteries are fully charged, does the fan stop running? Thank you.

[@Leonards_life]

Those batteries in that 80 volt pak are exactly what is in the PC batteries. I have about 50 of them and have bought VRUZEND caps and made many different voltage battery paks. For my 12 volt, paks, actually a bit higher

[@CessnaPilot99]

Do you know what cells are in them?

[@TommyLuptak]

May I suggest checking cell level voltage first always before even attempting to charge. You say you are interested in building a wall. You May benefit with more knowledge on handling lithium. Be safe. 🎉

[@evilsushi1]

Are those just nitrile gloves or are they some kind of special electrical gloves?

[@daneendevinna4176]

What kind of power supply did you use?

[@rottiejakeluke]

I just asked about recommendations for a power supply. By chance, do you ever perform this service. That I could send my battery to you for fixing?

[@Leonards_life]

Using just a computer grade capacitor, I too am a battery rejuvenating person. And of course variable power supply for any batteries that are not nicad. Been very good for me and now have many good batteries, especially the litium ion ones from pc batteries.

[@wmarleau2505]

Recovery worked just as you said. However, the battery only works for about 5 -7 minutes before needing to be charged. The LED's show two lights on. Any suggestions ? You are doing a great job. Keep it up !

[@ElementalMaker]

Thank you very much. Unfortunately it sounds like your battery has some damaged cells or has neared the end of its use cycle life. Sadly I'm in the same boat, my recovered battery worked at reduced capacity after revival, but has now totally died this past week when I tried to use it in the weedwacker.

[@brianbest2]

@@ElementalMaker I have a 80 volt battery in a weed wacker. The battery reads 80-ish volts runs fine on the charger. Put in the weed wacker and it will only run for 5 seconds or so then stops. Battery indicator does not read any leds at that point. Let it sit for 10 seconds or so and then it will run again for a few seconds then the same thing again. What do you think is going on with it??

[@billjohnson3344]

@@brianbest2 Have the same problem with this 80V Max battery in my leaf blower (but mine is blue and 2.5Ah). Runs a few seconds, then stops. Process repeats. Sometimes can get to run longer. Not clear if BMS issue or battery cell. Went to the trouble of taking apart and measuring each cell voltage, discharging pack to 70V, charging pack to 80V. Nothing obvious stands out as a problem, but cells definitely aren't balanced very well at either high or low state of charge. Also need to plug and remove from charger several times during charging - starts ok, but then flashes red after awhile. Eventually charger will go green, and it seems to charge to some level. Just horrible run time, and then the start / stop problem.

[@purdyboi8078]

@@billjohnson3344Yep, I have the same exact issue, it sucks...wtf?!!

[@conniew2578]

What type of gloves are you using? Want to make sure I buy the right protection gear.

[@ericbattenfield6654]

I have a 2.5 Amp 80v Kobalt that shows full charge but as soon as I put it in a tool and turn it on, it goes to zero, no lights at all. When I put it back in the charger, it goes right back to showing full charge or two lights and soon full. Dead cell(s)? Electronics gone bad? It reads 80.7 volts showing three lights and showing no lights. Oddly enough when I try to turn on a tool and the lights all go dark, they light back up as if full charge again when I take the battery out. The chainsaw shows bad battery and will not turn on at all.

[@mystified2356]

Activated carbon vid 👀 came from your comment on Cody’s lab, can’t wait for it lol

[@ElementalMaker]

Working on it! I was putting together an apparatus for steam activation, I still may try to do a different way (don't want to show something too similar to Cody), but I'm definitely going to do the chemical activation method. Should be pretty cool!

[@everettea6793]

I hooked up the batteries for less than 60 seconds and the dead battery has a burnt smell now... Is this a bad thing?

[@taknmyshot]

So many success stories. I had a 60v Greenworks that wouldn't charge. Took apart and had 10 cells .5v below others. I charged all to match at 50% level, but still charger blinks red. It works in tool, but just will not charge. Any thoughts as what to do next?

[@catfishslayer100]

I have a 80v 6ah battery reading 74.8v. When put on the charger it will seem like its charging for abiut 20 mins or so then the red light on the charger blinks any idea which is bad?

[@LuigiVenegas]

I have the same issue with the battery in this video (2ah). @ElementalMaker can you add some light on this issue?

[@frankdelorbe9457]

Can you send me a link to that power supply? Thank you.

[@LPcrazy_88]

It looks like a Sorensen, Model: HPD 60-5. If you want the manufacturer's link: www.powerandtest.com/power/dc-bench-power-supplies/hpd-series Otherwise, here's a link to a 60v DC Power supply on Ebay for a lot cheaper than people are selling the HPD 60-5's: www.ebay.com/itm/60V-5A-DC-Bench-Power-Supply-Variable-4-Digital-LED-Display-High-Precision-4/184357931592?hash=item2aec96ca48:g:hnsAAOSwWuJfBpsA

[@MarkGlenesk]

@elementalmaker what if my Kobalt 80v is at 76v? Won't charge, out of balance. Can I test and charge single cells.

[@dav1dbone]

It's a good source you have for batteries where you are :-) Taking cells from the recycle bin from a shop in the uk would be considered theft,.

[@theterribleanimator1793]

Atleast you guys have the chance to pick up one. Here in brazil they'll kill you for a broken hunk of battery.

[@jonross377]

Might be theft here too, but I have done it more than once.

[@leonardtippett5638]

So, I have a battery like yours, holds a charge but dies at 77 volts. Got any ideas for this?

[@earlingy]

Mines 78v but won't stay running in a tool for more than 2-5 seconds, any ideas?

[@briangreig7]

Thanks you saved me from buying anther battery.

[@adamcrealestate]

So you could have used the good battery as a supply feed to the bad battery right?

[@ElementalMaker]

Yes but you'd need to use alot of caution, and some kind of current limiting resistor or a current regulated buck converter

[@JohnsonMotorsports]

I have this exact 80v Kobalt battery. I was wiring up a electric Reel mower conversion and accidently blew the fuse on the back side of this battery. Do you happen to know what size fuse this battery pack requires?

[@johannlopez4524]

Is there a way to charge the kobalt battery slowly? Sometimes I need to charge it but not at full speed so the battery doesn't degrade as quickly.

[@antoncasciano8747]

does lowes gust let you take old batteries

[@shue3116]

What do you put in the battery to hook to the alligator clips?

[@maxmankins]

What size spade would you use to charge this from the power supply?

[@Spewnthereisnone]

I’ve got an 80v push mower, mower runs 5-10 minutes. It dies, put on charger, charges to full. Same thing, works 5-10 minutes then stops again. Advice?

[@davidcarrico3385]

So I have a green works battery that died (as well as a 3rd party one). They both died when trying to use with my weed wacker. My guess is that there was a fault in the week wacker. I noticed in your video that you mentioned a fuse. Do you think that just got blown and all I need is a new fuse?

[@doloresswann4600]

What is the trick to remove that 80V max Battery from the charger port?

[@ronbishop4057]

Nice video - thanks. My 80v Kobalt is dead - won't charge. I think its below the voltage threshold, don't have have a DC power supply but I do have a second 80v Kobalt battery. Clip them together and perhaps it will raise the voltage where it will start charging again. Episode 2..?

[@jamesshelhart7813]

They are rebuildable, the knew batteries are way better. But you really scored

[@liquidsteel8131]

My kobalt 80v has an issue. When i put it on the charger, the green light on the charger flashes, and all of the lights flash on the battery. After about five minutes, the battery lights go out and the charger lred light flashes. Do i need to.perfomr your process to het it to work? And where do I find a power supply like yours? Also, ehats the approximate cost of that power supply?

[@paulawestcott7228]

I need to replace the battery pin connector of the positive side of a Kobalt 80V battery it burt a little, any help or references to go about it? The battery still connects and does send power to the battery holder and equipment Any help is well apprciaed.

[@user-ux6tl8gy1k]

Hi, I was wondering if there is a tool to test the capacity of this type of battery pack without dismantling it? I purchased an aftermarket one on aliexpress, and on the description, the capacity is 12.0 Ah. But I just want to make sure. Thanks.

[@TheStaticNomadic]

What power supply did you use? I have this same issue with my battery!

[@ElementalMaker]

Honestly not worth buying the power supply for this, the recovered battery only lasted one season and was toast after that

[@cheesehead6710]

Can you give more info on the power supply? Where to get one, make, model, that kind of thi9ng. Do you set the amps the same as the battery amp?

[@tiguy9275]

Thanks for video. Very informative. I'm not very handy. To which business type does one go to to get this service done?

[@Billbobaker]

best to test then charge each cell individually and if they don't recover simply weld or solder in a new fresh cell.

[@tobywoo]

Grease that wrench! I have a twerpy 80V greenworks that will only be jumped to to two bars, still blinks red. Any suggestions?

[@nationofgandhis]

Same here, was a replacement that lasted not too long...

[@NathanielEssex]

Where did you get that power supply?

[@donzieboy]

Will a 30v power supply work to charge an 80 volt battery? Where do I get the terminals that stick into the battery, that the power supply clips, clip onto?

[@rjordanpt]

Having the same problem with Kobalt 60v. Don’t have another battery. Where can I get a similar power supply box?

[@redheadreed]

Where can I get that power supply?

[@britttullos8119]

Does anyone know the name of the particular bench top power supply that he is using here?

[@pauloxendine5488]

Can you please tell us what type of voltage meter you use and what type of power source you use so we can buy one and where you buy them from

[@Las_cacas]

what bit is needed to open it? searching my inventory and cant seem to find the right fit.

[@driverjamescopeland]

Would've been nice to know what brand and model the cells were. Thanks for the content!

[@leedavis1301]

Hey, I have one of these 80v batteries that charges well, but cuts off after about 30 seconds of use. Then if I wait another 30 seconds or so I can run a few more seconds. If I switch the battery tool works fine. Any ideas? Thanks!

[@bretrice3215]

My 80v Greenworks shows 1 light. Blinks Green for about a 1/2 hour or so then starts blinking Red. I had accidentally left it on the charger for the whole winter and that's what Greenworks says messed up my battery. I thought about taking a battery tender and hooking it up to see if it would slowly charge it. Thoughts?

[@bobjohnson1389]

I have an 80 volt battery that is sitting at 71 volts but the charger won't recognize it. Any ideas?