Fixing NiCd Drill Battery's For Free

[dino6161]

Looks like that just saved me from buying a new drill, thanks :-) Tried it on an old 14.4 bosch that wouldn't take a charge at all, and its working great now,,,

[tickyul]

Nice video, great idea.

Basically breaking down the sulfation that has built up in the plates. A Battery charger in CONDITON mode does the same thing, sends a lot of current(lol, not as much as a welder) though the plates over a longer period of time. But the condition method that some battery chargers use takes quite a while to get the same effects...really hard on the batteries because they get and stay hot for a long time. Curiously, this brutal method you use is better on the batteries.

[JimmyFarina97]

any know what the polarity is on a stick welder?

[tickyul]

@JimmyFarina97 On most you can switch the polarity.

[hurst011]

@tickyul The polarity can be changed by switching the leads inside the welder case. The terminals should be marked with either a + or a - sign. They are made that way because some filler metals (wire) work differently on straight or reverse polarity. It is easily changed. For most filler rods on a stick welder, I preferred reverse polarity, but some rods require straight polarity. I can't recall how I have my MIG (wire) welder set up, been too long since I initially set it up.

[thecanadianstoner1]

water on the floor and you're just asking to be lit up like a christmas tree!

[fcunderwood]

It will also work with a 225 Amp car charger at 12v.Thanks, My Milwaukee 14.4v is back to maximum power..

[MrILLUMINATING]

Great post, but I don't have a welder. Any ideas for an alternative? Thanks!

[spikethemoviedog]

I fell asleep from boredom.

Could do this in 1/4 the time.

[a2zhandi]

@spikethemoviedog you have a battery fix video less than 3 minutes? I'd love to see it..

Otherwise STFU

[lacrossetechnology]

sorry, is your clamp positive or negative on your welder?

[lacrossetechnology]

hey, vid looks good. looking at the video and what you where saying is backwards.. at 4:04 you mentioned you were shorting it yet you were adding charge, then you turned it around and shorted it when you mentioned you where adding charge. you mentioned positive was in the middle of the battery.

just wanted to ask as im about to try mine. :-)

[cubleycat]

Man you are a star thanks for posting. I just did this with 2 dead batteries, both were totally dead one has come back to full life the other is about 70% so going to rip it apart and change a cell or 2. Seemed too good to be true but it has worked. Here in the UK you can buy the info off ebay for £9 lol, you just saved me that money. Thanks :-)

[jel4752]

Thanks for video, works great, used a car battery charger on 200 craking amps intermitt on the terminals. when i did second battery had to re do proceedger longer, battery still showed dead on the drill charger. Thanks again.

[jel4752]

Thanks for video, revived a rigid and mikita drill batteries with car battery charger on 200 cranking amps with intermittent touching terminals. The second time when put on drill charger showed battery still dead or no good so did the sequence over but far a little longer then put on charger and it took complete charge.

[jampitts]

I don't have an electric welder, just acetylene. I do, however, have a 2-10-40-200 amp car charger. I need to zap 3 12 v Dewalt batteries. Think the charger will work, using the same principal?

[zumazuki]

I would hook a big lightning rod on my roof like Frankenstein.

[SuperBert28]

when i charge my drill battery up it gose flat over night what can i do

[mark10ification]

what a fucking tit american knobhead.

[LottaTroublemaker]

Thank you SO MUCH for posting this video!!! I need to use my (new/display model) Senco nail gun that has been sitting in a cabinet for years, ever since I got it. Finally I can use it, only to find out I had to get it a new charger. Got it, then ordered nails. Today I finally could put in the newly charged batt's, hoping to use it, only to find out that they do not work. Can't afford new ones, so I was so relieved to find this! Hope I can make them work!!! :)

[silentdrkangel]

would this method work with reviving a car battery that won't hold charge anymore?

[robviolin1]

The part I do not understand is how you hook up the polarity.

Are you connecting the negative of the battery to the positive to the welder? Could you make a vid that will explain how you connect the polarity?

thanks

[robviolin1]

I think I will try it - thanks

[velascowoodgrave]

Dude. Can I send you my batteries? I'll pay to have them fixed! Thanks!

[grospite]

mr. safety - bare foot, wet floor, working with electricity.hmmmmm....

[dewalt23293]

@grospite yea i know lol not one of my best instructional videos

[englander10]

Hi, this is a good video and shows something the NiCd battery manufacturers want to keep secret. Do you know if you could use a 12v car battery to zap a NiCd as I don't have a welder? Thanks.

[dewalt23293]

@englander10 a car charger would work but it depends on how big the battery that your trying to fix is . if all else fails just try it your not out anything but time

[peterm3964]

Wet socks concrete floor . Electric welder Wow thats an accident waiting for someone to happen to ,

[reap62]

@peterm3964 he owns a welder so that automatically makes him a nightmare for osha i dont know why but when you work with metal fab guys its amazing how they dont blow themselves up

[Mr7xchamp]

LMAO "This is definately not safe but it works"

[dewalt23293]

@Mr7xchamp oh yea

[disndat11]

You said the first time you'll do reverse polarity. But you did it straight polarity.

Just wonderin, were you stoned when you made this video??

[dewalt23293]

@disndat11 no. i have no idea what my deal was that day. it really doesnt matter how you start the process

[beachbummm69]

OMFG JUST GET TOO IT...3 mins of babble and bull shit...who has a welder laying around to zap batterys anyway....someone will sue you when it explodes in their face...lol

[dewalt23293]

@beachbummm69 a lot of people have welders, if you are smart enough to own tools most likely you have a welder. if not you could always find someone that does

[poopsacboob]

small gator clips 4.00

[tusnturn]

would taking the battery pack apart and determining which individual battery cell is not charging (using the multimeter) and zapping that particular cell only be better or your method would improve all the batteries together

I am in the power tools repair biz ...I like to enrich my brain withdifferent methods and ideas

thanks buddy

dewalt23293

[dewalt23293]

@tusnturn taking the battery apart is the best way to do it. but most people arnt up to taking the case off and figure out which cell is bad. so basically this is the easy way out

[ecuadordean]

You can't even say a complete sentence!

[dewalt23293]

@ecuadordean thanks

[Dorisequador]

Be careful it doesn't explode.. but nice fix..bud...

[pepelapui]

will this work using a stick welder, and just to make sure. You said for 18V Dewalt battery to turn power to 110amp range? first you shock using the correct polarity and then you switch to reverse polarity, then you juice it up again the correct way. Right?

[fishnriver]

I followed your info an revived 6 batteries that were laying around. This works great! THANK YOU

[dewalt23293]

@fishnriver glad to help

[sherryd2000]

I reversed the voltage and then charge the batt with the welder. The meter showed a increase in voltage but when I went to use it, there was no power. Do I need to put it in the regular charger and if so for how long?

[dewalt23293]

@sherryd2000 yes you need to charg it

[lolley1100]

I used a car battery charger to substitute the welder!!!...Lol...

[packagewarren]

nice job!

[davel8n]

You can also use a car battery charger, if the charger has a jump start option like most of them do now days. Set it on 50 amp leave twice as long as the video was showing (since he was using 90 amp). I also used car battery charger for my 3.6 black & decker versapak batteries. Use the 10 amp setting on car battery charger for these.

[pantsley]

Best thing I have seen on youtube. So glad I found this.

[JOSETORRESB]

you liar

[jacko5064]

Tried this on two totally dead dewalt batteries using a 12v battery charger,it worked,I now have a usable drill,extra large pat on the back to you,cheers

[reecechambers]

What exactly makes the battery explode? It seems like if you hold it on too long or the battery gets to hot, it will explode fairly easily.

[watchnut4u]

Great info-Only on my regular lincoln wire feed welder, the clamp is positive and the wire electrode is negative. This tip worked great once I stopped doing it bass ackwards-duh!

[dewalt23293]

@watchnut4u ill have to keep that in mind i didn't realize welders were different

[mega5531]

Hi Dear

thanks for your clip that was excellent , I have dead laptop battery , and I have no supplier machine as you .

Can I use my car battery as main source to give shock to the battery?

thanks in advance

Milad

uk

[dewalt23293]

@mega5531 not a good idea because most likely the battery is a lithium battery which will explode if you try it. but something you can do is put it in a deep freeze over night & then put it back into the laptop and let it charge. this should fix it. any more questions feel free to ask

[miladgharib]

@dewalt23293 thanks for your perfect answer

I would like to ask to give shock to every batterys how mach should be our source voltage and AMP for that !

thanks

[TheLordClem]

That's a cool fix. I'll have to mention it to the guys at work since we kill a lot of them at my work place.

What I'm wondering is if this trick would work for a 4.8 Volt Dremel Minimite battery pack. The little son of a gun holds a charge for a whopping four minutes of use. It use to go for days of use and abuse. Its battery is set up different but I can see two points for the negative and two points for positive. Any thoughts on if this trick can be adapted to this little battery?

[dewalt23293]

@TheLordClem a dremel battery is do-able, but i would use a car charger with a start feature that puts a bunch of amps out, or you could use a car battery. as far as the + or -. i too have a similar dremel and if you look on the bottom of the tool it only uses two contacts so if you find out which ones they are on the battery you can then determine with a meter which is which, any more questions feel free to ask

[TheStangdr]

thank you that was awsome!!!

[TheVidsbids2012]

i dont have any of the tools you used to repar that battery and i have a 24v battery and i need it do you have any suggestions??

[dewalt23293]

@TheVidsbids2012 i know how but first things first does it hold a charge at all?

[TheVidsbids2012]

@dewalt23293 when i put it on charge it says its fully charged but it not

[dewalt23293]

@TheVidsbids2012 . i have had that happen to, basically you have a partially fried cell that wont take very much power. so you can try it again or the battery might be beyond help. any more questions feel free to ask

[SchmidtTools]

Good instructions.

A bit risky though with a mig but hey what ever gets the job done i say.

I`ve got a mig welder but i`ve never tried zapping them with the welder but i`m sure it works it`s all the same principle.

I have a slightly less risky way but you have to do as you say and pull the pack apart to find the dead cell. I`ve pulled apart a Makita 18V pack and found the dead cells in the chain and brought them back to life with a couple of zaps from a 12V Auto charger, it works for sure.

[MIKE92322]

i tried it ne naw ne naw fire service

[desertfox12345]

Brilliant - very good instructor as well. Thank you for the video!

[pweethor]

does that work for nimh batteries aswell? also, how dangerous is that?

[dewalt23293]

it should work fine on nimh, its not as dangerous as you think, the battery doesn't even get very warm during the process

[pweethor]

dude sklarm on you tube reckons you should not do it with other batterys, just ni-cd. have you ever done ni-mh batteries yourself? thanks for your help

[dewalt23293]

@pweethor no Ive never tried but if i can find a nimh IL try it and make another video

[GriffGruff78]

That's pretty clever. Do you mind if I ask how you figured that out?

[dewalt23293]

based on why battery's go bad in the first place a lot of research

[GriffGruff78]

What is the purpose in reversing the current path? Is the idea to "flush" the cathodic elements?

I'm assuming that the big picture is to break down dendrites but I don't really get the reversed current...

[dewalt23293]

because the elements are sort of like steel wool when you reverse the current it fries these that formed in the right direction, its like the battery turns into a funnel when your using the battery all of the current has to squeeze through the small end of the funnel but when you reverse the current it starts to make the "junk" form the other way then eventually in another few hundred cycles it happens again, so technically you could get 100,000 thousand charges if this were a perfect world

[nesormusic]

I have no use for this video, and it took forever for me to load, but THIS IS REALLY COOL. glad I stuck around. [and dang dude, be more careful. what you were doing seemed dangerous. but whatever, you're the Dr.]

[dewalt23293]

youtube has Been weird lately with all the video player updates.yea this really isn't use full to the average person, thanks for watching

[tomwmloppe]

All of my R. C. BATTERIES require slow charge.(300mah)

how do you force 90 amps?

[dewalt23293]

if you want to do it, do every thing in the video, but make sure you do very short bursts of amps or you will risk frying cells, what kind of battery is it a 7.2v,11.2v or what? the battery's will take the current well, as long as the battery will charge to some degree (meaning it will hold some voltage,obviously not as much as it should,if it wont take a charge at all and the battery registers no voltage after its charged it cant be revived.hope this helped any more questions ask

[laptoppart4you]

try low voltage like 19v from any laptop power adapter and give it to battery you fixing ,make sure to put the positive at the positive and watch the heat of the battery ,if it get little bit hot that mean it charged and refreshed and after that just charge it over night with the original charger .