Battery Packs – Replace One or All Cells?
The pack of batteries is only as good as the weakest individual battery. Testing batteries, before anything else, is the best way to make sure your pack is providing you will all the available power it can. Once that is done, IF it is determined that ONLY ONE CELL out of a pack of two or more batteries has become damaged, any battery or EV shop will tell you this, and it is NOT a trick to sell you more batteries: If you want optimum performance of your vehicle, you should replace all of the batteries together. Well, this is basically true. If your pack is still within six months of when you began using them, then you could probably get away with just replacing the one battery (or cell). However, if your pack has been in service for longer than that, you will need to consider this: The current flows unimpeded through all batteries in the pack in a “circuit”, because they are wired In Series, so that you can get the accumulated voltage of all the batteries; 24V (two batteries), 36V (thre
