Видео

Great video! Thanks for helping us out!

Don’t do this at home, li-ion batteries can catch fire or explode very badly. If you want to take the risk do it outside, a specific li-ion fire extinguisher (water will make it worse) and nothing flammable nearby!

Question where can I get the wire that you used for this, as I do have a HT 4.0 Ah 20 V Max battery that won’t charge and I have another one that will.Thank you

I just started hitting my battery a couple of times and bingo,started charging correctly!

It took a sec and it worked thank you very much!❤

What kind of wire did you use to recharge that battery, thanks !! Great Video.

So my batteries show that they are 19v but when I put on charger they still blink red someone please help

This worked amazing buddy thank you so so much 😁

I dont have a second battery......surely this could be done with a car battery or woulld the amps be too high??

What kind of wire or hook up do u need?????

Thanks so much for posting! Bought a new Porter Cable Drill with 2 batteries and neither battery worked. This fixed it!!!!

Bloody brilliant it works

I can attest! I had two PC batteries blinking and now fully charged.

Whats the option if we dont have a spare batt?

Tried it and it don’t work

Very helpful tip. 💯💯🌟🌟🌟🌟🌟

Well done, thanks!

Just a question can I do that with a 20v Dewalt to my porter cable battery to bump up the charge?

You are awesome man worked perfect

Good vid, I will try it out and see what happens, thanks.

Used 2 small gauge wired to do this, worked in about 30 seconds. (I think the higher gauge the wire used, the faster it'll work.) but be careful!

what if i dont have a good battery?

Puedo cargar la batería con otra que esté buena y que sea de otra marca?

Thanks for the info. My batteries are no2 charging

Awesome! Just went and tried it and it worked. Thanks for sharing

Worked, even if you don't have another similar battery I used 4 D batteries in a line and it only took like 1 minute and worked .

I did all and not working. I leave connected for more than 10 minutes and nothing. WHY?..... I used outlet cables.

What kind of wire are you using?

Worked like a charm thank you.

Genius

This is an awesome video. What would be a safer cord to use? I’m afraid to get shocked and would rather buy something safer because I have several to try to fix. I also have a couple that smell like an electrical fire. They have not been used much at all but I’m afraid to use them. Can you tell me your thoughts?

I tried it now it won't even charge or nothing

Awww man, my battery was stone cold dead, I just tried this method, it freaking worked, thanks a million man...that's just wonderful...

What kind of wire can I use to do this? I’ve got a 20v power cable battery for a nail gun that I am trying to recharge. Thank you.

I use my laptop charger which is pushing out 19 1/2 v. Make sure to keep an eye on the battery as it's charging making sure it doesn't get too hot. I also put it in front of a fan to ensure the same thing. By the way I was doing this because I diddnt have a charger for that manufacturers batteries at that time otherwise I would have done as shown in the video. Actually I probably would have just stuck it on the charger and we're doing fine. I have walked away from a 12 volt Milwaukee battery that I left charging on my car while it was running and well it never charged again... I was also quite happy when I realized that I can jump my truck with the 18 volt battery, I wasn't exactly thrilled about doing it but I was in the middle of nowhere and I had used all my battery for lights while fishin and that was my only way out. But, I tell you what, that sucker started right up! I just made sure to kill as many of the electronics as possible as to not fry them. 😎

Too bad I didn’t watch this last month. I tossed a DeWalt drill in the trash because it was not charging.

Yep just tried it with 2 different 20v battery which was 2 different makes and the bad one had been charged only once.industrial companies have gone so bad that they even trick cordless batteries..Bastarxxx😮😮😢😢😢

I was just about to give this a shot but then I realized I don't have any wire 🤣😂🤣

What kind of cable wire did you use? I am having issues with my Black & Decker 60v not charging and the charger is showing a red fast blinking light. I don't want to spend money on a new battery if I can do what you do.

What kinda wire can I use

This 7 year old Vid saved me a yelling match at walmart about a dead Hart battery. Thank you!!!

My porter cable battery died yesterday and mom was about to toss it. I googled and followed your instruction and now mom thinks im a magician! I just used cables that came with my multimeter. only took about 10 sec and voila!

Bro...... YOU ABSOLUTELY ROCK. I just picked up a brand new porter cable drill with 2 batteries and charger for 50 bucks because the store said the batteries were shot, lol. I literally jumped the new ones for a few seconds, not minutes, and they're both charging. One was blinking red fast, and the other was blinking red for over temp, I'll find out if they take a full charge or not in a little bit but damn, best video I've seen on RUclips yet.

Great solution. Thank you for this.

worked for me also on a completely different battery voltage (36 volts restored with a 20 v) . it was sufficient a second and the battery started charging.

I've tried this several times on a battery that the charger rejects. The voltage is up to 18.6 and it still rejects it. Anyone have any ideas?

Sir, your courage and willingness to stand up against big battery is commended! NOTE: I didn't have wires like the ones shown in this video so I tried the insulated speaker cable from my home stereo. Worked

Hi Anthony, do you think this technique will work with an Echo 58v lithium battery. Unfortunately, it was left in the charger & it over charged. Now it is dead & will no longer charge. Before I try your method I would like your input. Thank you Jeffrey

I want to add my appreciation like all the other comments below. Thanks... I got my previously dead battery to charge.