Faults and Fixes
Why does my lithium battery stop accepting charge or trip the BMS?
A cut-off is usually the BMS’s decision rather than a battery failure: cell imbalance, a temperature limit or an incompatible charge profile. A profile set for lead-acid causes interruptions on lithium.
Why it works this way
This is why a conversion has to change the charging side as well as the batteries. Replacing cells while leaving the alternator regulation alone reproduces the fault.
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