Flexvolt 6ah Complete Teardown
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- Опубликовано: 3 июн 2023
- I had a faulty 54v 6ah flexvolt battery which was well out of warranty and not taking any charge after numerous attempts to fix it I decided a complete teardown was the best way to get something out of it. The idea is to reclaim as many cells as I could to build and repair other battery packs. The battery featured is a flexvolt 54v/18v which in USA is 60v/20v part number dcb546.this battery has 15 18650 2000mah cells internally which I can reuse if they are good. Flexvolt is a very sophisticated battery with the dual voltage bms and high quality inr18650 20s Samsung cells. I completely took apart this battery and tested the cells 12 out of the 15 are reusable.
The flexvolt battery series has 6ah 9ah 12ah and now more recently 15ah it is a high power multiple cell platform
XR FLEXVOLT is the only battery on the market that automatically switches from 54V to 18V enabling it to power both 18V and 54V power tools in the XR product range.Voltage steps up to 54V to deliver unprecedented powerCompatible with all 18V XR and 54V XR FLEXVOLT tools. Will Flexvolt batteries fit XR tools? Yeah
This video is for entertainment and educational purposes only and it is not the intention of Doctor Lefthandthread media for any injury to occur as a result of my videos. Battery repair is a risky undertaking and careful consideration should be taken before attempting it. 
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When you said tear down. You weren’t kidding. I’ve seen vandals do a tidier job.
It's how I roll sir
😜 fair play to you sir!!
It’s so easy to say never taking one of these apart lol
Ese cautin de Milwaukee me encanta 😊
It's great
I opened it up and was considering desoldering.. I was like how could it be this complex. Thank you for doing the work and showing me that it really is that crazy. I hacked mine apart for the 18650s also.
You are welcome this channel is first and foremost to help and hopefully sometimes to entertain
If you are just going to destroy the thing a sledgehammer would be faster!
I wouldn't have got 12 viable cells to build batteries if I had used a sledgehammer . Thanks for your comment
😮 You just threw money down the drain ripping it apart like that.. Could have just put new cells in it.. Better ones like Molicel.. 😁
You make a video “putting new cells in” to a FlexVolt battery and I will send you all the cells you need for free. It’s basically impossible, fella. Your time and sanity is worth more than a refurbished battery.
12 out of 15 ain’t bad at all buddy🤘🤘🤘. I remember seeing a video that explained why certain cells in the flexvolt packs, certain specific ones to be exact, always fail if not charged for a period of time. Basically sitting idle in a tool or on a shelf not being used. I’ll see if I can find it and send a link brother. 🫡
Thanks Brandon that would be cool to see
@@doctorlefthandthread ruclips.net/video/ZJHKoo2shBA/видео.html
@@doctorlefthandthread No link sent...must have been BS
@@garthqueen not bs there is a guy called matthias on youtube that's who Brandon is talking about. I watched the video there are 3 banks of 5 18650 2000mah cells in the Flexvolt the Middle cell in each bank is more likely to fail. Brandon is one of the best he is not known for bs.
Al fin usted no la reparo nada 😢
Not this time
Yeah you actually have to use it as a 54v not just 20 or the cells become unbalanced let the world know doc!!! And sorry I've missed a couple vids I've been very busy!!
Thanks as always for your helpful comment. I appreciate all your comments and support it's not easy to see all the crazy videos I post. I have alot to come so watch this space. Take care Branden
you can use them in 20v just fine, you just cant be leaving them discharged for long periods due to the 60v design some cells have a tendency to drop way lower than others. always store these babys with at least 50% charge off of a dewalt balance charger. @@doctorlefthandthread
Jhay un error al usar el cautin y es que lo acuestas mucho asta acer corto sircuito deve usarlo minimo a 45 grados para que no pase eso
Thanks
Triste como una pila tan nueva fallo
Yes I agree
Bet ya the 3 bad wer the middle cels in each set
Would you sell me the bms from that please? You cannot but the bms
You will need to email your details to me
thanks, i suspect this is what ill find as i have a bad controller or bad cells. no way to put back together i see lol
No going back lol
Easy to fix. I repair them as a buissness and sell the refurbed ones 😉 probably heard of me
Also you’re scaring me with how rough your taking apart and what joints your connecting 😂
I always thought they seemed too much trouble to repair and I don't like the knock off boards that are available. What do you think?
I know I am a self proclaimed savage but what can you do?
@@doctorlefthandthread and fuses are usually the course of your know what your looking for on the bms it’s pretty easy however you’ve got to take it off in one piece gently and when working on them I would also take the springs out of the 54v slider and make sure it stays in 54v less voltage across the terminals as in for removing the bms otherwise it tends to blow smd fuses and resistors on the ribbon boards
@@doctorlefthandthread I wouldn’t ever buy one of those nock of boards
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