Quote:
Originally Posted by bronsonj
There have been a few issues in golf carts. In every instance the owner of the cart over-discharged the battery at some point and then recharged. Also in each of the instances I know about there wasn't a BMS installed at the time the battery was over-discharged. The battery 'seemed fine' after charging then some time later, fire.... So if you ever over-discharge a lithium battery, recycle it. If it won't take a charge, recycle it. Don't try to open it up and bypass the BMS to revive it, send it to the hazardous waste part of your local dump.
I've never heard of a lithium battery taking physical abuse in a golf cart but it's possible. Make sure your battery is secured so if your cart falls on it's side or rolls over the battery will stay put.
The last option is over-charging. But these batteries come with a charger that should shut off before it gets to over-volting the pack and also have a built in BMS that prevents both pack-over-volting and individual cell-over-volting. So over charging the battery is not likely as you have redundant safety mechanisms in place.
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also, The electric vehicle fires you hear about are in vehicles using NMC batteries. Lifepo4 is a different chemistry and less likely to catch fire.