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Flexvolt 9ah Quick fix ( not jump start)
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- čas přidán 5. 08. 2023
- This Flexvolt battery has a problem it is charging but not powering tools either Flexvolt or XR. I through a series of fortunate events a faulty 54v 9ah battery came in to my possession. The fault was mind boggling at first. I put the battery on to charge and to my amazement it was charging perfectly then I took it off charge and tested the voltage. The voltage test revealed astonishing results there was no voltage coming out of the battery. I thought there was something wrong with the meter but when I checked it was OK. There was indeed no voltage whatsoever coming out of the battery. I tried it on a tool and at this stage there was no surprise it was not powering the tool or lighting the led. I took the step of removing the sides with the first side of it was apparent there had been a heat surge one of the connections was slightly discoloured but still intact. The other side however was a different matter three connections were completely burned through so I promptly resoldered some nickel strip across each one and the fix was perfectly completed. The Dewalt Battery range includes XR 18v or 20v flexvolt 54v or 60v and powerstack 18v or 20v. The Flexvolt battery shown is a 9ah which is powered by 21700 30T cells. battery repair is a risky undertaking and careful consideration should be taken before attempting it. It is not the intention of Doctor Lefthandthread media for any injury to occur as a result of my videos. This video is for entertainment and educational purposes only. Flexvoly battery not charging? can you fix a Dewalt XR or Flex battery? #trending #repair #dewalt #powertoolrepair
Another mighty fix, may the fixes never end💪💪
Lots to come it's mad at the minute
Logical reason for the problem. 👍
That's the job. Good man
Thank you sir I appreciate what you teach me today 👍
Any time
What thickness nickel strip did you use
0.01mm keeps it safe not too heavy will burn out in the case of an overload and easy for the welder I use
What drill bit is needed to open up the battery case?
Security torx bit 10 (tx10)
Thank you for this upload 👍
My pleasure thanks for your comment 👍
Also curious what thickness of nickel strip you used.
0.1mm is the size I used
Hi I’ve got a 12ah flexvolt battery . It goes from 1 bar to 3 bars in about 5 minutes in the charger then stops charging . Surely this can’t be right 🤷♂️my other 12ah one takes at least an hour
No it shouldn't do that
First page I have found with very useful, thinking outside the box fixes Between this and the contact cleaner on the impacts. I have 3 impacts that do not respond to a good battery, or shut off 1 second after trigger being held. not a connection issue at the Battery. is there a fix for that? I pull tools apart for 20 foreman so I deal with alot of them...
Can you do a DCH273/293 losing its hammer function? That is a common one I deal with at work, sick of bringing the tools to Dewalt and not seeing it for 6 weeks
I have done few videos on the dch273 and dch253
The one below is one I did purely to help people it won't get good views but it the most complete guide I have done
czcams.com/video/kN8-LQnBaLQ/video.html
Thank you.
I’ve never welded nickel strips before, any tips on that before I take on this repair challenge. I have about $4,000 in dead flexvolt batteries. Ready to go back to corded tools soon if this keeps up. Just killing batteries every month in the chop and table saws.
The flexvolt have issues with people killing them
Yessir, most of them die within the first year as well. I haven’t been impressed with the technology as of late. I feel like there should be some sort of safety protection against overloading the battery before it’s just useless. Again, any tips on welding the nickel strips as I have never attempted this fix before.
@@dustindunsmore1125 I think the protections on them fail too easily I spot weld or solder the nickel strip depending on which one is burnt through
Why not just bridge the broken connections with solder instead of nickle strip?
It will work however I chose to use the strip to restore the fuse type set up to the battery so if an overload happens again it will blow the strip and not anything else on the board
What happens if that doesn’t work?
It's more complicated and there are no easy answers
Why would the connection break like that is there something else wrong?
Good question the connections are designed to break like a fuse if the battery is pushed hard to stop an overload. It is usually not something that is a longterm problem only in the moment the pressure was on the battery if you reconnect with fine strip it will break if a problem occurs again.
WHere can we get the "nickel strip" to make the repair?
Ebay
@@doctorlefthandthread anyone in particular?
@@edwardlittle5541 any will do but here is the one I use on amazon
amzn.to/4643atk
@@doctorlefthandthread Thank you so much for this! I have a 60 volt DeWalt battery that I used just once and it zonked out on me, and I'm 99% sure it's because of the cheap DeWalt Wannabe light I bought. It drained it while it was just sitting around doing nothing. Cuz it worked perfectly before I plugged it into that el-cheapo DeWalt Wannabe light. It's one of those "Made For DeWalt" items from Amazon. I like the light. I just hate that if I let it sit around it eats batteries like that.
I have same battery showing full bars and 19.5v on the meter. It will only work on one drill. The other 2 drills are working with other batterys but not that one, i cleaned all the battery connections. Any idea?😂
Flexvolt are tricky 9 out of 10 are unrepairable
Nice!! 🫡 where do you get nickel strip without going on holiday to the konga with shovel in hand 🤷♂️😂 thanks 🙂
I have never been to Konga. I get the strip from good old ebay
@@doctorlefthandthread thanks mate your a legend 👍
What size bit to remove screws
Security torx T10 so TX10
what caused those 3 broken connections? physical impact?
No the battery was put under pressure. Something like being run hard on a power hungry tool there was a potential overload but these connections are designed to burn out instead of causing a battery to overload. Reconnecting them is fine because the danger was only in that moment.I do however use light nickel so in the same eventually they will burn out like a fuse again.
What special Torx head is needed? Mine has little nipples inside the head, like anti theft screws.
@@hickboy3067 Tx10 security torx
Good job amigo
Thank you sir
Mine is dead, it gets charge with jump start, but it won’t charge with the charger (the charger works just fine) anyone knows how tu fix it? (The battery is practically new and very clean)
They are difficult to repair most of the time all you can do is check for broken connections. If none are found discharge it fully then bring it up with a DC power supply to 17v on the lower range if it doesn't charge it is done
Did you say a nickel strip?
Yes
How do you put the nickel strip on?
You can use a spot welder I soldered it on this occasion
What if it only has one bar of charge but it’s been charging for hours? Is the battery damaged?
I never saw that fault before
@@doctorlefthandthreadI have a 1 bar charge to full issue. 3 different chargers all say the same. So charger ruled out. Battery works on both 18v and 54v.
Zero issues inside far as I can see very clean actually. My next thing to do is tear it down check cells for imbalance of voltage or faulty cell. I what would u try next
@@batesysbikes they are a minefield of small fuses and resistors
Yes lad where are u based?
Tyrone
@@doctorlefthandthread 4or5 that I can’t get working could u get a look at them and I sort ya for it?
@@user-hu7my2ki7k I stopped working at the Flexvolt I had a bad turn around with them could only get about one in 10 working. Not taking Flexvolt for the time being but that could change in the future.
🤣
Good video, but why support a company that produces such overpriced garbage?
All the companies have their overpriced garbage and their great items.