After dismantling a few battery pack found at value village, its usually just one or 2 cells that are done. I think battery packs should have warranty on them considering companies makes it "one battery for all your tool" kind of thing. Also they should offer re-celling packs in case capacity drops too much.oh wait we live in a capitalist world nevermind haha. Thank you for the informative video
Great sleuthing! Though, I am very curious how this holds up in the long-term. A followup vid would be awesome, next time a cell fails! Great job extending the life and keeping it out of the trash.
I have one of these. It's fine but I've heard horror stories about this particular Kobalt battery. I treat it with kid's gloves, I never totally discharge or totally charge it full. I leave it sitting around 50%-70% charged when not in use and only add a charge right before I'm going to use it. Apparently, leaving these 100% charged on the shelf is not a good idea. I treat all my drill batteries the same way and never just leave them in the elements. Knock on wood...I've never lost a battery. I even have some drill batteries which are at least 8 years old which work fine. I enjoyed watching you work Vuaeco.
Great instructional video! 1) If you didn't have the 80v Kobalt available, how would you have found the correct cell? 2) What was wrong with the with the 80v Kobalt that motivated you to cannibalize it for parts? Thanks for the great vid!
You can get surplus batteries at places like BatteryHookup. Likely this guy either didn't have an 80 volt tool or the battery had another problem like a bad board.
If the battery voltages are not the same, like a few cells were a lot higher voltage this would cause power to quickly flow from them into another cell with lower voltage when connected -causing damage. The voltage does not have to be exactly the same but it should be real close.
The cell voltage is not 3.7 volts. It's only 3.7 volts when the cell is about discharged. Just like an AA battery is not 1.5 volts when it is fully charged, it's closer to 1.7 volts.
No. You have to replace them or the entire battery pack won't work. If you have a TV remote control that takes 2AA batteries, you can't just put one battery inside of it; and then expect it to work.
