Fix Dewalt Battery that won't charge (Try this after you try the "jumpstart" fix)
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- Опубликовано: 13 мар 2022
- If you've tried the jumpstart method and still have a dead battery, give this a try! It brought a totally dead battery back to life for me!
My issue was a popped CID (Current Interrupt Device) safety device. Manually resetting it allowed the battery to return to service.
Now that I know about this fix I wouldn't remove the cell which would turn this into a 2 min fix. You can check & reset the CIDs without removing the cells - you just have to open up the plastic case.
#logfurniture #logbench #dewatbattery#battery #logchair #adirondack 
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Tried jump-start method first, didn't work. Just did this and it worked perfectly. Thanks
Thank you for this video. Jumpstart did not work. Was able to reset it as well and now it charges just fine. Two cells I heard a "pop" noise when pushing down on the cap. Did not have to de solder. Thanks again!
GREAT!!! Just fixed 8 Batteries without taking the cells out! Life saver!
That’s fantastic news! Thanks for posting that!
Had the same problem and I was able to reset it without de soldering. I used a very small flat head and yeah it worked. Thanks man. Saved me $100
Glad the algorithm made your video pop up in my feed. Tried jumpstarting a dead dewalt battery and it didn't do anything. Figured I'd have to buy and replace cells but I'm going to check for this first.
Thanks!
I hope this works for you! Let me know if it does. :).
This trick worked for me one time. The 2Ah packs are forced to work too hard and that's why they get so hot. I replaced my 2Ah packs with the 4 Ah packs and haven't had any problems since.
I thought about repairing my 2Ah packs but (decent) cells would cost more than buying a new 2 Ah pack. Marketing. 🙂
Knowledge is the key. Much appreciated
This works!!!!! I fix about 10 old battery of Milwaukee's DeWalt Cobalt Craftsman's and several other batteries that worked on too
You are a genius! just subscribed. I got jump start to work a couple of times
The final fix attempt. Ty. For sharing this. It worked.
Oh great! Thanks for letting me know. :-)
Great film thank you for the information, much appreciated. 👍👍👍
This worked for me. My issue seemed to be that I added the DCB094 USB charger to a brand new Dewalt 6mAh battery for my wife to use a USB LED light. I believe it discharged so slowly that it snuck past any electronic stop and made a cell "pop." Be careful about very long-term low level power drains! I was surprised that I didn't need to remove all the cell connections to test voltage on each cell. I tested each of the eight cells. Each gave 3.66V then two gave over 4.5V - I did the manual reset on one and it started charging again. The charger stops at two of three lights, but hopefully all the voltages settle and I can get to a full charge after using and charging the battery over time. SUPER HELPFUL!!
Thanks for the tip. I’m glad it worked for you! :).
You're ingenious thank you I have often wondered if there's a way of doing this as RC car batteries do the same thing but there's no reset button on those you have to changed the cell
Great fix thank you
Great Hack Sir. I will try that on a 12V dewalt post battery no longer available. Jump start did not work. Likely not used for years perhaps decade. NiCad.
I thought those connections had to be done with spot welder. Becareful when soldering. Minimum heat. Battery inside a pipe.
Great clip, and i dont say that often
Outfknstanding Dude many thanx , kinda sweatin the soldering but what better way to practice ! You gotta Sub
Thanks!
I tried the "jump-start" and all it did was make my Makita battery pack hot. Luckily I haven't thrown it out yet so I'll give this a shot and see if it'll fix the problem. Thanks for the tip.
I hope it works for you! Let us know if the Makita cells have a similar device. :).
awesome i have 2 batteries that are doing this thank you going to try it
Let me know if this was your issue!
This help me a lot.. thank you very very very... i search about each piece size price and its a bit expensive i tried this method and kaboooom its works
I’m really glad to hear that! Thanks for sharing!
Man you saved me !!
Wow super ill look into this I did run my pack down I bet it did pop
I love this and I especially enjoyed the suspense of knowing if it was going to work along with you 😅. My question is, if the cell popped once before, is it likely that it pops again in the future? I have a 2a dewalt battery that only worked a couple times, I’ll have to try this and post my results. I’m curious as to how it works out for you.
So far it has worked fine ever since.
I was working the battery hard (it was quite warm) when it popped. I suspect I pulled too many amps from it. It has been worked normally since without issue.
Thanks for video.I have a bunch of dead cells . I think dewalt are junk but I am stuck with them
never heard of the CID most if not all flat cell 18650 are unproctected, so i assume those are more expensive because they have those features. Most button tops have protection
Ya these batteries have protection system on top. Not dewalt. Theirs have it inside batteries case. I'm confused now
be careful doing this. if your insulation on the side of the battery is damaged, you can short the battery and it will vent. I learned this the hard way working with these types of cells in another capacity.
what do you mean by vent? i tried the technique in the video and the battery got really hot, then it made almost a hiss like sound. safe to assume it is toast now?
@Richard Conrad that would indeed be a vent. You are correct, that battery is toast.
Hey, great video! thanks for sharing this..
Are you able to reset the CID without desoldering the cell?
Absolutely! If this happens again, that is what I would do for sure.
However I had no idea what the problem was as I made this video and when I took the cell out I thought it was just a dead cell. My mistake
I wonder if that would work for Craftsman batteries. Thanks for taking the time to do this video though.
If they are lithium batteries this should work for any brand. They all use the same basic cells inside.
@@Tree-ations Yeah, it's a Craftsman V60. Two of the 20 volt packs seem to be fine, but one them, if I checked it right, appears to be dead. I tried to jump it with two other fully charged batteries, one 18 volt "Warrior" brand and the other a Craftsman V20. It didn't seem to work though. I'll probably try your method next. If I do, I'll post my results.
How to unsolder battery from assembly?
Gotta try this with a 60v that I have that will only jump start to 14v. Will not charge beyond that. I'm assuming only 4 cells are functioning.
excellent video ty
cool!
What screwdriver bit did you use to separate the battery case ?
For the screws you mean? I picked up a security screw bit set from
Amazon that had the right bit. The set it only a few bucks and I’ve used it a few times with success.
Sorry, I have no idea what the screw head is called.
I'll try,still feedback u soon
Without taking it loose from the other batteries, can you reach with a pick and push the safety cap down ?
Absolutely! If this happens again, that is what I would do for sure.
However I had no idea what the problem was as I made this video and when I took the cell out I thought it was just a dead cell. My mistake!
@@Tree-ations So your initial purpose of the video was to replace a dead cell but it morphed into repairing a dead cell. In real time more/less. Thumbs up. Way to adapt.
How do you solder that tabs back to the battery? They seem to be spot welded. I’ve not had success getting solder to adhere.
A spot welder would be best, but I did t have one either. It was a bit of struggle, but I finally got it to work. Be careful to not put too much heat into the battery!
@@Tree-ationsIt appears on mine that the inner cap is tightly up against the outer cap. I’ve tried several tools - dental picks, tiny screwdrivers, knife blade, etc. but cannot separate the caps and get the inner to pop back in place. Any suggestions?
So, if one of the cells is bad but unable to be reset or "fixed" is it possible to purchase a replacement cell so the whole battery doesn't go to waste?
For sure! Just make sure you don’t get a cheap one. Dewalt (and others I assume) use good quality cells. You want one of the same capacity. Let me know if it works for you!
yep, i was given a WORTH 80v battery pack. i took it apart and it had one bad cell. I used one of them to replace a garbage cell in my BAUER 1/4in impact 18v battery. Its back up and running. Nice thing about the giant battery packs is i took mine apart in a way that kept most cells attached together at one end. " i dont have a spot welder" so made it easier to build 2S battery packs for rc cars as well.
@@Tree-ations almost certain DeWalt uses LG cells
problem I have is ,even after full charging the juice lasts less and less,, Is there anything that can be done to that or are they in the bin?
You likely have a bad cell in the pack. You need to take them apart and test each cell and replace the bad one(s).
@@Tree-ations I'll try that thanks
Do u know what it means if I go to charge my dewalt battery but soon as I put on the charger it's lights red at first (one blink ) then There is no light after. Battery still has juice because it still will turn on my blower ? Thing is Battery does this on Different chargers as well, so it's not the charger :/
Sorry, I haven’t run into that one.
ρяσмσѕм ?
vslusble video.
While this "works" it essentially disables the safety mechanism. If whatever caused the cell to vent the first time happens again it can catch fire or explode (right next to 4 other cells). If you battery pack catches fire while in your garage and burns your house down your insurance company will use this video evidence to deny coverage. Replacing the bad cell with a new one would have cost you a few bucks.
Cool….is it possible to push that cap down without desoldering the end ?
Absolutly! That video is me not having a clue what the problem was and figuring it out as I went. If that ever happens again I would just reach in and push it down like you said.
@@Tree-ations yea,,,I just saw another one where he did just that . Thanks again though you steered me straight! Cheers!