I often hear that it’s hard to find someone who’ll rebuild battery packs because it’s not worth it and can be dangerous, so it’s easier to just buy a new one. But from what I understand it’s just a series of smaller batteries all linked together?
Rebuilding seems even easier than building from scratch, just desolder the old batteries and swap them for new ones. Bing bang boom job done. …so how likely is the boom part? lol
What is it that can so easily go wrong that makes people say don’t attempt this on your own?
In: 11
In addition to what others have said:
While taking energy from the battery pack, every battery has to give the same amount of current (when they are in a serial pack) under load. If you replace just one battery out of a pack, than it could be that it doesn´t have the same amount of charge or the same capacity. So the replaced batterie, or the other old ones, will be “empty” before the others. If you don´t stop to take energy from the pack in this moment, the “more than empty” battery does get damaged.
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