How to revive a dead rechargeable power tool battery easily

[@aristidhskalampokidhs3480]

Beautiful old people who knows the value of money, the art of repearing and the gift of knowledge... Straightforward.. Simple... Not begging for anything.. Not selling t-shirts or doing stupid jokes... This video is what internet was supposed to be...

[@JPinFuerteventura]

Thanks for the comment. I hope you find it useful.

[@Dan-w4x]

​@@JPinFuerteventura Still helpful in 2024, thanks again

[@braviafeed]

I'm in the process of cleaning out my late fathers collection of power tools and I had 6 dead battery's to try this technique on ( I used 10 gauge wire instead of scissors). Total success on EVERY battery! They were all over 15 years old! Great tip J.P.!!!

[@JPinFuerteventura]

Great. I am glad it helped. Thanks for watching.

[@Quintos.]

Queef

[@2high2flyfpv88]

I tried it on a battery that's only a few months old, it didn't help it at all.

[@Brad-0212]

@@2high2flyfpv88 maybe try use another battery which has a higher voltage to the one your trying to reset it might reset it but if you use another one that’s either lower or different to it it may not work I reset these basically quite a lot not drill ones walkie talkie radio ones and have a 50/50 chance of resetting them I use a 9v charger for radio ones and it does the trick so maybe use a higher voltage battery to have a better chance of a reset on the battery hope this helps 👍

[@f4fake22]

I'll be dipped, it worked

[@havefunbesafe]

I like the use of scissors ✂️. This is cutting edge technology.

[@brucemarmy8500]

I see who the sharpest knife in the drawer; you! Don't go running with the scissors..But you know that.

[@victorchetcuti7350]

I love your sarcasm. Perfect stand up comedy line.. 😂😂😂

[@chrisguy1790]

Groan

[@michaeljohnston777]

A little play-on-words. I see what you did there!! You're smart Man, definitely Pretty SHAARRP!🤑🤑🤑

[@panama-canada]

Freq Flyer cutting edge, literally.

[@christinahahni6144]

I love that nearly 3 million people have benefited from your advise. The power of one!

[@JPinFuerteventura]

Amazing isn't it. I just made this for the 100 or so subscribers I had at the time as I thought that it may help one of them one day. For over a year it got 30-40 views a month and then one weekend it got 250,000 views and has many more since. I have no idea why that happened. Thanks for watching Christina.

[@BRITISHAERIALVIEWS]

WOW, THIS WORKS! Just tried it on a battery that has been completely flat and non chargeable for at least 4 years, and now it is charging and works! Thanks a lot.

[@JPinFuerteventura]

I am glad it is working for you. One in the eye for the doubting Thomas brigade below. Thanks for letting me know.

[@BRITISHAERIALVIEWS]

Died again shortly after. Seems it just gave it a jump start.

[@JPinFuerteventura]

@@BRITISHAERIALVIEWS That's a shame. Sometimes they are too far gone unfortunately.

[@rockycassidy1813]

I have a battery that charges but isn’t charging all the way how do you fix that

[@williwonti]

@@rockycassidy1813 Probably one or more of your 'cells' is actually kaput.

[@jimb2785]

Tried this yesterday with two Craftsman 14.4 V batteries that would not recharge for years. It worked for both of them! After the first one worked, I used my multi-meter to check the voltage on the other 'dead' battery. It was around 9.5V but after I hooked up a separate fully charged battery pack I had for a different drill, I got it to jump up to near 16 V and that was only with one minute of charge. I used test wires rather than scissors. I was just looking to buy new packs or replace the inner batteries on those Craftsman batteries but found this AWESOME tip and this saved me a ton of money and extra effort. I used the cordless drill extensively today with no problems. This tip was RIGHT ON THE MONEY!!

[@JPinFuerteventura]

I am glad it helped. Thanks for watching Jim.

[@worldtraveler930]

Thanks for being straight to the point and informative! I believe that there is No reason for twenty minutes of Posturing and narcissism for something that can be explained in a couple of minutes or less.

[@JPinFuerteventura]

Thanks. That is my philosophy.

[@patmiddleton3947]

World Traveler Amen to that,brother!

[@bohemialite6371]

Well you learn something didn't you. Call Papa beer or a glass of vodka

[@steves3760]

@@bohemialite6371 Exactly.

[@billcobbett9259]

We Brits get straight to the point! (I'm an expat in Spain as well)

[@mauriceharnett7133]

JP, your advice just allowed me to rejuvenate a 200 euro battery for which I could not find a replacement. You sir, are a legend.

[@JPinFuerteventura]

I am glad it helped Maurice

[@JPinFuerteventura]

Note to anyone before posting a derogatory comment: 1. I didn't show that the other battery also worked to prove I hadn't switched them because I didn't realise how suspicious some YT viewers are at the time. If I had known that then I would have shown it. 2. Yes, the light was lit at the beginning because I forgot to switch the camera on when I first jump started it and once it had some charge I couldn't redo it. In fact, since I did it the battery has not needed it again. 3. The battery is still working 15 months later. 4. I don't care if you believe it works or not. I am just trying to pass on a tip which may help some. 5. The battery will not explode just because it is being given a little charge from the other battery initially. I don't care if you have worked in the battery industry since Moses was a boy. 6. Any idiots who have nothing better to do than swear and make stupid comments will just be banned.

[@Daniel4Style]

It's amazing to me that a person like you or I pass on tips and negative people just HAVE to chime in. Thanks for video and tip.

[@JPinFuerteventura]

It amazed me too Daniel. Thanks for your comment.

[@JPinFuerteventura]

Thanks Tim. You are absolutely right.

[@bombadeer8231]

Trump voters all. Here in the states we laugh our asses off at these people. Thanks for the battery tip!

[@Salmon_Rush_Die]

You're not real you are a hologram I don't believe anything you say the earth is flat and NASA is lying the battery is dead .... aliens

[@joelp8758]

I almost threw my Dewalt battery away to buy a replacement! Thought there was no solution but here is an excellent video to show there is! My battery is revived!!! It's a quick fix and cost nothing! Thanks for sharing!

[@JPinFuerteventura]

I am pleased it helped Joel. Thanks for watching.

[@ottodidakt3069]

so much hate, just a decent guy trying to share a useful trick ! YT is ridiculous

[@JPinFuerteventura]

Thanks Otto, at least you prove they are not all like that. I must admit this video going rather mad over the past few weeks and the trolls it has attracted has rather soured my view of YT. I have spent 3 years building up a nice little community of people who love Fuerteventura without any trolls.

[@ottodidakt3069]

Hey you're welcome. Just royally ignore the trolls, they don't deserve your time and they hate being ignored ;-) keep sharing, Cheers

[@JPinFuerteventura]

My current strategy is to reply to them and then ban them so they see my response in their notifications but can't bite back.

[@ottodidakt3069]

ha ha, cute !

[@vicpessia7441]

Just proves how people are not happy with themselves and need to belittle.

[@rsauve999]

It worked for my Ryobi 18v battery. I used 2 electrical wires, attached for 30 seconds. Took 1 hr to fully charge. This bat. sat in basement for 3 yrs & I thought it was dead. Many thanks, JP, from Newfoundland, Canada.

[@JPinFuerteventura]

I am glad it helped

[@coulterredding2024]

JP, you da man! I've came across an old NiCd battery I've had in my garage for about 8 years untouched because it wouldn't take a charge. I connected it to a good battery for about 5 minutes and, BAM!!! It's resurrected. I'm in disbelief, but even after a few days, it still works. Thanks a ton!

[@JPinFuerteventura]

I am glad it helped Coulter. Thanks for watching.

[@davidcarrillo4376]

Thanks man ...was charging my old milwaukee one worked fine the other was not charging did your trick n now its charging

[@JPinFuerteventura]

I'm glad it worked for you David.

[@bdc211]

is it still working as it should??

[@NH-tv3jr]

Thank you this video saved me over £100 for a DeWalt battery! Anyone trying it just to say I plugged in and out 50 times twice with no joy, and then the last time I did 100 times, and then it started charging properly. Don't give up too soon if you know your battery hasn't been used much.

[@JPinFuerteventura]

I am glad it helped. Thanks for watching.

[@onetalentedman2822]

I've just brought back to life several dead batteries that replacements could cost more than the tool with the batteries included. Best tip every on KZbin. Thanks for sharing.

[@JPinFuerteventura]

I am glad it helped. Thanks for watching Karl.

[@jaileal8806]

Great bush fix, we use it all the time. A quick charge when batteries are put in put in parallel like this (one under charged- one at regular charge) can cause some damage to the cells due to rapid current flow, but unless you're comfortable adding in a resistor and slowing the process down it's a great way to stop the corporate greed that the companies make by over charging for batteries. All the best from another island dweller

[@JPinFuerteventura]

Absolutely. Thanks for watching Jai.

[@maxwellhouse1902]

jai, what resistor value is correct for this procedure?? Thanks

[@jaileal8806]

@@maxwellhouse1902 I use a big resistor so it doesn't get too hot. 5 W cement resistors which i sneak out of old/ discarded TV sets (CRTs) etc work well. If you're going to open up CRTs be aware of the shock risk and make sure you understand how to open them up safely)In terms of ohms, I just use whatever i find, as any resistance to current flow is better than none. I guess you could try different ohm ratings and see what you prefer.

[@zammyc6414]

This is the best tip I have every gotten from youtube. Straight forward, no messing around...loved this guy.

[@JPinFuerteventura]

I hope it helps Zammy

[@Hoganrick]

I am so glad that I found this video. It sure saved me a lot of money. I was able to revive 3 of my batteries. I was debating in buying new batteries or just buying a new drill. I decided to see if anyone had ideas to revive them because the batteries were for my Dewalt drill, circular saw, reciprocating and flashlight. This method worked like a charm. Thank you for posting and sharing.

[@JPinFuerteventura]

I am glad it helped Rick. Thanks for watching and letting me know.

[@JamesWarrior]

This video was perfect. I have just had exactly the problem you described with a Bosch Drill. I followed your instructions, which were very clear, and I now have two functioing batteries back again. Thank you.

[@JPinFuerteventura]

I am glad it helped James

[@michaelsinaloense6449]

The power tool companies don't like you I bet. Lol. But we do!!! 😋 Thanks!

[@JPinFuerteventura]

lol - I hope it helps. Thanks for watching.

[@tchelenon]

JP in Fuerteventura hi JP much thanks for the trick. I’ve only one battery which is basically dead. Anyway I could revive it as I lack a second one to parallel connect them. Thanks

[@billcobbett9259]

@@tchelenon Find a battery or DC power source of the same voltage, but observe the correct polarity connections.

[@joflo122]

The tricks is really good, but My both batt ,doesnt charging.. :-(

[@maniraza6961]

@@joflo122 same Here..

[@jmfa57]

It's not simply the cost of a replacement battery; often, the replacement battery is no longer available. Thank you!

[@JPinFuerteventura]

Very true. I hope it helps. Thanks for watching.

[@EKUGuitar]

Worked great for me-thanks for the tip! I had to leave the batteries connected for about 40 minutes, but after that, the charger was able to charge it. I revived two ryobi 18v batteries that hadn’t worked since 2015.

[@JPinFuerteventura]

Great, I am glad it helped

[@getnetreda676]

JP in Fuerteventura, Ye dave tube, Ebc!!!

[@progers5019]

Same with electric golf carts. If the batteries drain completely out or below a certain low voltage, they will not respond to the golf cart charger. In that situation I read on a blog just disconnect and separate the two batteries and charge them individually with a car battery charger to bring the voltage back up past the minimum tolerance for the golfcart charger to work again. IMO, Connecting the tool batteries with the scissors is bringing the dead battery back up within the minimum voltage for the charger system to charge that battery again. So many golf cart owners have spent big bucks on new batteries because they didn't know. The other guys on that blog site saved me lots of money just like your tip will with battery powered tools. Thanks very much.

[@JPinFuerteventura]

Absolutely Phil. Thanks for watching.

[@cassgrove6809]

You CHAMPION!! I tried it, it worked, fabulous. Thank you so very much!!! A new battery was going to cost $95.

[@JPinFuerteventura]

Great. I'm glad it helped Cass. Thanks for watching.

[@chrisjohnson4386]

Great tip. I was expecting a whole teardown that'd take 30 minutes minimum. Good to know there's a quick way of checking. Much appreciated.

[@JPinFuerteventura]

I hope it helps Chris. Thanks for watching.

[@straightshooter9784]

Wow!!! I took my electric bike out after leaving it for over a year. Luckily one of the two batteries charged up no problem. The second battery was completely dead and would not charge. I searched all over the internet to see if there was some solution. Nothing until I came across your video. These replacement batteries(if you can find them) cost in the range of $600.00 each! I figured your solution was worth a try and bingo,it worked. The battery is now charging, no more flashing light indicating no charge. I’ll have to wait a while to see if it fully charges but so far so good. If there’s a problem I’ll give an update. I was just so excited, I had to respond right away.

[@JPinFuerteventura]

Great - I am glad it seems to have worked. Yes please let me know the outcome. Thanks for your comment.

[@codybenjamin435]

how long did it work?

[@straightshooter9784]

Continues to work, good as new, several months later. Accepts new charge no problem and holds the charge like new.

[@codybenjamin435]

Straight shooter sounds made up!

[@drof2th]

WOW JP!!!!!!!! I could not use your technique with scissors but, DID touch the terminals with a battery charger for a minute and WOW it worked, you are a genius!!!!!!!!! Thank you!!!!!!!!!

[@JPinFuerteventura]

I am glad it helped Ron. Scissors are optional 😉

[@whiteknightcat]

OK, OK, here's another testimonial. Had one B&D 12V battery just go completely dead between last use and today. Charger would not charge. Cut a couple of short jumper wires and paralleled with a charged up one and then left them while I went through Facebook. Maybe an hour later I plugged the dead one into the charger. Boom, it charged right up. Thank you sir!

[@JPinFuerteventura]

Great, I am glad it helped. Thanks for watching and letting me know.

[@avinashjagdeo]

This is a great tip! Never thought to do that. DIY guys have to help each other out. Thanks.

[@JPinFuerteventura]

I hope it helps. Thanks for watching Nate.

[@moorenormmooreconman1015]

Thankyou don’t take any notice of the clowns that criticise mate

[@wmarkham916]

This has been the most helpful video I've seen on YT yet. Thank you

[@JPinFuerteventura]

I'm glad you found it useful. Thanks for watching William.

[@margaretchamberlain3897]

It Worked! Bought a 5$ drill at an estate sale for my daughter to use at the real crappy house she is renting while going to college. One battery would not start to charge. This worked!!! She needs a drill for lots of repairs. Thank you!!

[@JPinFuerteventura]

I am glad it helped. Thanks for the comment.

[@johnbradshaw2902]

Thank you, I had two batteries of different voltages, both 'dead'. I did this but not with scissors just a couple of wires and it really works. Again, many thanks from SW France

[@JPinFuerteventura]

I am glad it helped John. Thanks for watching.

[@richarddickson747]

I tried this trick and it worked well so I will make up a dummy loading dock to fit the dud battery for a 2 minute charge from a temporary adjustable voltage transformer to give it a quick jump start. I will make it flexible so that I can fit in any brand of battery so that I can help my friends to save a bit of money. Thanks for the tip.

[@JPinFuerteventura]

Thank you for the comment Richard.

[@daviddierking4214]

Batteries should not be connected to a multiple tap transformer. Never apply AC voltage from a transformer (that’s what transformers put out) to a DC battery! It could result in ruptured (read blown up) cells.

[@GizCramer]

Richard Dickson oA

[@richarddickson747]

@@daviddierking4214 You are quite correct. I did not make myself clear that I was using a multi tap transformer fitted with an ac to dc bridge rectifier and a current limiting resistor which is super safe.Thank you as I do really appreciate your comment as someone might try to apply an ac supply to a battery. My Error.

[@keithd31]

Did this on a three month old dead battery work great. Thanks for the tip!

[@JPinFuerteventura]

I hope it helps. Thanks for watching Keith.

[@212days]

Well I will be yet another person to say that this worked for me. My Dewalt charger was indicating that the battery was dead and needing to be replaced (super fast blinking red light.) I hunted down a couple of pairs of scissors and tried this. Then put the battery in the charger and came back a while later and the battery was all charged up and is working now. KZbin is great sometimes. Thanks for making the video.

[@JPinFuerteventura]

I am pleased it helped. Thanks for letting me know and for watching

[@CallSignBandit]

Just tried this. It actually worked. Thank you for the video. Wish I knew it two batteries ago.

[@JPinFuerteventura]

I am glad it helped. Thanks for watching Jeff.

[@JeepTJWheelin]

In an age of designed obsolescence, this is great to learn, thank you!

[@JPinFuerteventura]

I hope it helps. Thanks for watching.

[@wokkawicklo]

Exactly. Anyway around forced obsolescence is a big win in my book.

[@foesfly3047]

I really like the Arizona Route 66 license plate in the background. Nice touch!

[@JPinFuerteventura]

That was a souvenir from a trip I did with my son for his 16th birthday. We flew to Phoenix and drove all around. Flagstaff, Grand Canyon, Hoover Dam, Las Vegas and back to Phoenix, taking in part of Route 66 on the way. It was a memorable trip. Thanks for watching.

[@juniord5477]

I came across this video by accident. I have the same Dewalt drill. One of the 18V batteries would not take a charge for years now. Only reason I didn’t toss it was because you’re supposed to recycle them. It’s an older drill and batteries. I tried this and it worked!!! Thank you very much.

[@JPinFuerteventura]

Great. Thanks for watching Junior.

[@rinnstrang9089]

That just put a big smile on my face. Tried it and..... it worked perfectly Where is the like and subscribe button

[@JPinFuerteventura]

Great, I am glad it helped Rinn.

[@joeford860]

Thanks I will remember this just in case you never know when this will be needed.

[@JPinFuerteventura]

I hope it helps. Thanks for watching.

[@peterwilson5528]

The Edward Scissorhands technique for battery revival ;)

[@JPinFuerteventura]

lol Thanks for watching

[@tellyrussell1466]

Ha ha ha Scissorhands that's funny Good 1

[@michaeljohnston777]

Yeah Man, this guy is pretty SHARP!! :) :) :)

[@TheWrightTimes]

I've got a CEL multitool that hasn't been used for years. The battery was completely dead and wouldn't charge. This is so old the company stopped making the tool 10 years ago and the battery 5 years ago and nowhere has replacements. I (very nervously) followed your instructions and linked up to the only other rechargeable battery I have which is a Makita. I was expecting one or both batteries to go bang, but apart from a few initial sparks, it's totally worked. I'm charging the battery fully now, but did a test after 20 mins of charging and my multitool came to life. This has saved me a lot of money replacing this tool. Thank you so much.

[@TheWrightTimes]

Well it's working and cuts wood but even after leaving it on charge for 24 hours won't show more than one bar power on the multitool. Any advice to get it fully charged? Will it get better the more cycles it goes through? I opened the battery a few days ago and it has what looks like 3x 18650 batteries but all wired together so no idea what to do if I need to change the cells for new ones

[@JPinFuerteventura]

It sounds like one of the cells may be damaged, sadly. You could perhaps try to test each one individually but unless you can buy a replacements cell knowing which is faulty won't help.

[@hertscars5757]

Worked on 2 Black & Decker 18v firestorm batteries , and they are both holding good charge so far.

[@JPinFuerteventura]

I'm glad it helped

[@dniboc7227]

Definitely going to try this. Why would anyone 'dislike' this.

[@JPinFuerteventura]

I hope it helps. Thanks for watching.

[@qparas]

Amazing! This fixed my 5 amp battery that appeared to be completely dead. Thank you!

[@JPinFuerteventura]

Great. Thanks for watching Quentin.

[@Lazlow007]

THANK YOU! Mine is an old German Drill, which I got as a present. It's a 2008 model, but was NEVER used. It's basically brand new. However it has only ONE battery with it. I was about to get a new drill when I found this video. I managed to jump it so that the charger kicked in. Now IT WORKS!

[@JPinFuerteventura]

I am glad it helped.

[@DAquingil]

Shear genius!!!

[@JPinFuerteventura]

I hope it helps. Thanks for watching.

[@MottyGlix]

I see what you did there.

[@nanope773]

Ahhhhh!!! Well played, well played indeed! Lol

[@dude...are-you-sure]

Pun intended

[@solutionsfx]

WOW! Thank you for passing this helpful tip around👏🏽👏🏽

[@JPinFuerteventura]

I hope it helps. Thanks for watching.

[@nathanahughes]

“I’m going for a swim now” 😆 good video mate

[@JPinFuerteventura]

Thanks Nathan

[@TheCedharper]

Brilliant! I have spent ages trying to bring my late fathers drill battery back to life. I came across this video, charged my other dead battery for just 10 mins, did the 'jump start' scissor trick and now the suspect battery starts charging. Fantastic - thanks very much!!

[@JPinFuerteventura]

I am glad it helped

[@TheCedharper]

@@JPinFuerteventura thanks. I have managed to get the charger to recognise the battery and start charging it but when fully charged it just turns the drill over very slowly. I am charging again but fear the battery may be at the end of its life. Fingers crossed and thanks again.

[@JPinFuerteventura]

@@TheCedharper It may well have a dead cell sadly

[@colstace2560]

Another tip, if the drill is 9 to 18volt, make up some jumper cables and run it off a car battery, not so portable but ok for farm or building work out in the field

[@JPinFuerteventura]

Thanks for the tip

[@ThePhilandPam]

I’ll definitely give that a try next time I have a battery die, thank you 👍

[@JPinFuerteventura]

Thanks for watching Phil and Pam

[@steamgadget]

My hero of the day right here! Thank you, thank you, thank you sir! I really appreciate your uploading this!!!

[@JPinFuerteventura]

I hope it helps. Thanks for watching.

[@STONEHACKs]

I wanted to say thank you for sharing this trick. I had a dead DeWalt 14.4v battery which unable to charge, plug in charger and the charger blink non-stop telling me it's faulty. But kept the faulty battery for almost a year(actually forgotten about it) until I happen to stumble across your video by chance. I took out my other working DeWalt 14.4v battery, did exactly what you taught in the vid with scissors also, then after 15mins I plug the dead battery in and it started charging!!! After full charge I test it and it's back working again. To all those who do not believe, do not say rubbish because you have no idea what is going on. However I do not know will it work on li-ion batteries as mine is the old li-cad battery. Once again thank you for showing this awesome trick to revive my dead old battery. Everything you say is so darn true, not worth buying new battery but the drill is still very good...

[@JPinFuerteventura]

Great, I am glad it helped. No, you shouldn't do this on lithium batteries. Thanks for watching.

[@kentuckytrapper780]

Thanks man, I have several to try this on. Smart man. Thanks

[@JPinFuerteventura]

I hope it helps. Thanks for watching.

[@reneeethridge3728]

Thanks for the tip, I will have to try this!

[@JPinFuerteventura]

Thanks for watching.

[@coverfireconcepts9032]

This worked great for me. Thank you very much for saving me some money. Great video. Thanks for sharing .

[@JPinFuerteventura]

Great, I'm glad it helped. Thanks for watching.

[@parcerillov3120]

Just tried this in an Ozito 18v and worked a charm. Was getting no love from the charger (no charging light and wouldn’t charge) on the second battery. Did this and after a minute i put it on the charger and boom! Like new! I decided to look at ideas on how to get it going after seeing the ridiculous prices for a replacement one. This is my first comment on a video and can honestly say you save me a couple of hundred dollars. Thanks so much!

[@JPinFuerteventura]

That's great. Thanks for watching and letting me know.

[@wallerdog]

Perfect ending to a great how to video, JP!!! Love it!!!

[@JPinFuerteventura]

Cheers Les. Thanks for watching buddy.

[@wallerdog]

Always a pleasure, JP!!! :-)

[@ronlawrence5021]

Great tip! Can't wait to try it myself. Love the Route66 plate as well.

[@JPinFuerteventura]

That was a souvenir from a trip to Arizona when my son was 16. I hope it helps. Thanks for watching.

[@ronlawrence5021]

@@JPinFuerteventura Yes my friend, I live near Winslow, AZ.....not far from the fabled "corner" occupied by some girl in a flatbed Ford.

[@JPinFuerteventura]

You are second person to comment on the Route 66 sign and you both live near Winslow coincidentally.

[@ronlawrence5021]

@@JPinFuerteventura Well to be honest there isn't much to see in Winslow besides the "Standing On The Corner" exhibit. For those wanting the a much better Route 66 experience, I'd recommend driving down the road a bit further to Williams. The diners are all 1950's style and they have the "Polar Express" train that takes you up to the rim of the Canyon. Wait. Why am I going into all this? LOL.

[@tonydonoghue3303]

Thanks a million my man..... great bit of advice and tip.... keep um coming...

[@JPinFuerteventura]

I hope it helps. Thanks for watching Tony.

[@michaelberry5656]

Thanks Bud... My job was throwing out 3 Dewalt drills I ask could I have them and immediately did research came across this. You're the Real MVP!!!!!!

[@JPinFuerteventura]

I hope it helps Michael. Thanks for watching.

[@caddydaddy84]

It worked! Thanks! You saved me a good deal of money.

[@JPinFuerteventura]

I'm glad it helped. Thanks for watching.

[@JosePerez-nh4bd]

Thanks, it worked, I used alligator clips! Love the video!!!

[@JPinFuerteventura]

Great. Thanks for watching Jose.

[@thefreeradical2320]

Jose...try crocodile clips lol.. 💕 South Africa.. 👺

[@byronjones8246]

That's sweet.. I work at recycling center and theirs tons of those batteries here that are flat. So I'm bringing them home.

[@JPinFuerteventura]

You have nothing to lose Byron. Thanks for watching.

[@bk-of8iv]

worked?

[@byronjones8246]

@@bk-of8iv I brought 5 home and could only get 3 back to life. Maybe the other 2 where just bad and not dead.

[@CHAD-RYAN]

Dang you can sell them then.

[@gogan3429]

Only the Companies would hate you for this. Thank you.

[@JPinFuerteventura]

They could pay me to take it down 😉

[@evanshawes6238]

Thank you for this service, my good man !

[@JPinFuerteventura]

I hope it helps. Thanks for watching.

[@danielafalcioni5956]

wow, this video has nearly 1.000.000 of visualisations, congrats JP! Sophia

[@JPinFuerteventura]

I don't know why though. For 15 months it had around 50 views per month and then one day it went mad and had 50,000 in one day and almost a million in 3 months.

[@cookytrix]

"visualisations" LOL

[@212days]

@@JPinFuerteventura interesting!

[@masterpanther1]

@@JPinFuerteventura that's probably when everybody's battery started going bad and they were looking for a cure. Good job on your part LOL

[@anitablades6033]

Merry Christmas, I have some in my storage that needs done that way, I subbed Thanks !!! I'll be back to watch more.

[@JPinFuerteventura]

I hope it helps. Thanks for watching. You may not see too many more videos like this but you will learn a bit about the island of Fuerteventura 😉

[@andken62]

A very good demonstration, the Manufacturers will never tell you this,I approve this message.

[@JPinFuerteventura]

I hope it helps. Thanks for watching Andrew.

[@jackbquick123]

I have a bad battery and they have stopped making that kind. I'm going to try this thanks for sharing this information with us. Thanks and God bless

[@JPinFuerteventura]

I hope it helps. Thanks for watching Jack.

[@TheDcrocks1]

Did you do it? Did it work?

[@mds1986ms]

It works best and wont wreck your good battery if you use a dc constant current constant voltage power supply. But even then you do actully run the risk of burning them up. Just be careful, if they start to get hot get it outside and on the ground.

[@mds1986ms]

Oh and make sure its not a lithium battery. These NiCad nickle cadmium batteries. Thats extremely important.

[@jackbquick123]

@@TheDcrocks1 I tried it today and as God as my witness it did work! Brilliant,,, same concept as jump starting a car battery. You could even use a DC charger and check voltage of battery frequently off the charger till you get it to what voltage your battery is. Thanks and God bless

[@DickieboyBradders]

Gratitudes for that great tip 🔋

[@JPinFuerteventura]

I hope it helps. Thanks for watching.

[@johno7808]

10,000 likes says it a great video!👍

[@JPinFuerteventura]

Thanks Jonno, I guess so

[@jbs256]

Thank you sir! I found you via a Google search. I have 18V DeWalt LiON batteries for my drill and one was DOA. I followed your scissors method and in just a few seconds I was able to get a slow light and it’s charging. No one died in the process and it’s charging now. If it fails I will just get a new 20V kit, while not cheaper, it makes more sense.

[@JPinFuerteventura]

I am glad it helped and you are still alive to tell the tale Joseph 😁

[@jbs256]

JP in Fuerteventura now KZbin’s algorithm is showing me all the battery revival videos. One advised doing it outside for fear of fire or explosion. I did this in my kitchen, so yes, glad to have survived!

[@timfarmer648]

This is so cool I hope I can remember to do this when it happens to me

[@JPinFuerteventura]

I hope it helps on day Tim. Thanks for watching.

[@jlive2226]

3 years later I'm commenting on the fact that he threw in "talk amongst yourselves" lol

[@JPinFuerteventura]

Thanks for watching

[@treetop9914]

Thanks for the tip and what a punch in the gut to the RIP M offs

[@JPinFuerteventura]

I hope it helps. Thanks for watching.

[@jimbruce4348]

I've watched a load of how-to videos on youtube, but this one is by far the most useful... I had 5 Worx batteries that would not charge. (Was because I left them in one device that drained them). I now have 6 good batteries... Thanks so much

[@JPinFuerteventura]

I am glad it helped Jim. That has saved a few dollars/pounds.

[@jimbruce4348]

@@JPinFuerteventura Even some EUROs

[@gonefishingtwo]

Good one JP, people don't know about batteries once there not cracked there still good you just need to wake them cells up 👌

[@JPinFuerteventura]

Thank you Leon. Cheers for watching.

[@corn620]

Thanks so much for such a great tip

[@JPinFuerteventura]

I hope it helps. Thanks for watching.

[@wgenfair]

I really appreciate your video, thanks to share it. Congrats.

[@JPinFuerteventura]

I hope it helps. Thanks for watching.

[@fernandocumbe1954]

This works 100%!!! I got four rechargeable Energizer AA Batteries heading to the garbage. Two I use all the time and two that I use once in a while. All of them stopped charging. The two that I use once in a while are charging again and work now!!! The other two won't. This works!!! Thanks!!!

[@JPinFuerteventura]

I am glad it helped. Thanks for watching Fernando.

[@Iwillnotbepushed]

Instead of tearing this guy down try his trick first. I’m going to.

[@JPinFuerteventura]

Thanks Alan. I hope it helps. Thanks for watching.

[@speckofdust272]

Brilliant job and well done for sharing thankyou 👍👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻

[@JPinFuerteventura]

I hope it helps. Thanks for watching.

[@jasonneal]

That is so awesome, thank you for sharing this

[@JPinFuerteventura]

I hope it helps. Thanks for watching Jason.

[@epicdeep]

I had exactly this situation with a two battery powered drills less than a year old. One battery died and would not accept charge. I was really sceptical after watching this video but I thought why not give it a go. (I did forego the scissors and strip down some insulated wire for the job though!) Hey presto! Worked a treat, charged up ok and seems to be holding charge and working fine now. Many thanks for posting this great tip, really appreciated!

[@JPinFuerteventura]

Great, I am glad it helped. Thanks for watching and letting me know David.

[@eaglevp]

Very useful information John thanks for sharing.

[@JPinFuerteventura]

Cheers Keith. Well it was something different. Thanks for watching.

[@jerryjackson6624]

Black & decker order a battery

[@samueljames9342]

It's not physics, the charger is just a little too smart. When you plug a battery in to charge, the charger checks for the presents of a battery, if there is 0 voltage it doesn't see a battery to charge, so there is no output. If you boost the voltage a couple volts and plug it in, the charger sees a low charge and will charge. This doesn't necessarily have to be due to corrosion (although it could be). A battery left sitting for an extended period of time can go completely dead and do the same thing.

[@blessedjohn]

Samuel James I was thinking the same thing being the chargers smart sensor. Some times smart man made items still need to get a little help :0)

[@42lookc]

Samuel Jones. Logical. Totally dead = 'smart' charger doesn't even recognize it's there. Small hit of juice into it = 'smart' charger now sees a battery and goes to work.

[@buczkotamas3526]

Actually charger seas the battery, but (usually) won't charge it if the LiPo cell voltage is below 2.4 v.

[@twcaldwell1951]

car battery smart chargers are the same way, give your dead battery a little boost and the smart charger will pick it up and charge the battery. I have done this many times.

[@Nickbaldeagle02]

The presence of the battery. Presents are gifts.

[@savage11smw33]

Awesome, thanks for the brilliant tip!

[@JPinFuerteventura]

I hope it helps. Thanks for watching.

[@casper3130]

Yep, I just did this and it actually worked. One of my batteries was completely dead and when put on the charger flashed red quicker than normal. I used scissors and jumped it counting to 80 then put it on the charger, it took about 2 hours for it to fully charge, I tested it with my drill and it worked. Thanks!!

[@JPinFuerteventura]

Thanks for letting me know Casper. That's another one in the eye for the nay sayers.

[@chio1219]

Thank you Sr!!! 😊😘

[@JPinFuerteventura]

I'm glad it helped

[@stevegoodrich7272]

If you don't trust using scissors you can use jumper wires with alligator clips as well.

[@JPinFuerteventura]

You can Steve but I didn't have any. Actually scissors work well and have insulated handles too. Thanks for watching.

[@RAM-BAWN]

So the idea is to get enough of a charge into the "dead" battery such that the charger will not see it as a "dead" battery and recharge it.

[@JPinFuerteventura]

Correct Ronald. I hope it helps. Thanks for watching.

[@ralph0808z]

@@JPinFuerteventura JP. Your video makes a lot of sense. It's just like jump starting a car battery. I have a question though. After you jump start the dead battery, give it a full charge and run it down again, will it recharge normally or do you have to jump start it again with a working battery, etc.?

[@ralph0808z]

@Swizzle Dwezzl Thanks for the tip. I guess the real problem is that if you don't use the (old) battery for a long time it will completely die (as in the video). I still have my "dead" battery (never recycled it yet) and I'm going to try to revive it tomorrow. Thanks for the reply!

[@JPinFuerteventura]

@@ralph0808z I have never had to restart that battery again as it always charges when put in the charger. This was made 3 years ago and only recently has that battery started to hold its charge for less time than normal.

[@ralph0808z]

@@JPinFuerteventura Interesting, I still have my old "dead" battery and I'm going to try to jump start it as shown in your video. Thank you JP!

[@patagualianmostly7437]

I've been doing this for a couple of years now.....but with lead-acid batteries. I bought a new electronic charger and it would not charge some batteries....the "very dead" ones. Linked them to a good fully charged one.... (-ve to -ve.... +ve to +ve..) for a minute or so. And hey presto.... they accepted being connected to the charger. But it simply never occurred to me it might also work with power tool batteries! A DOH! Moment.!!! Many thanks for sharing this gem. Subscribed. Cheers.

[@JPinFuerteventura]

So much for them being called "smart" chargers - they are as stupid as smartphones. Thanks for watching.

[@nickcoudounellis2020]

God loves those who love to charge dead batteries

[@chadmartin6729]

Great job

[@JPinFuerteventura]

Thanks for watching.

[@Manuel_Z_Kayaks]

Does it hold the charge though? I've recharged 18v batteries with a 12v charger then put them on the 18v to complete it. Problem was when I used the re-charged battery. It only worked for a few minutes.

[@JPinFuerteventura]

That depends perhaps on how old the battery is. The one in this video still works ok.

[@superman21958]

JP in Fuerteventura How do yo jump the batteries that don’t have the tall male design?

[@danielhiggins4775]

I used one of these a few times to jump my car.... melted the electrical tape holding the leads, but hey.... it worked lol

[@JPinFuerteventura]

Thanks for watching.

[@robertharris8031]

Ive never left a comnent on KZbin. Before; but right before I was out the door to Home Depot I figured Id check youtube: cuz hey, ya never know right?. I wasn't 100% sold but went in the garage; to give it a go ... it actually worked! I even used scissors cuz they were on rop of my rollaway. Good sir; You just saved me 50 bucks....thanks so much! you have a new subscriber!