The BMS protects your battery by balancing cells and cutting power on faults. When it fails, the pack may not charge, shut off randomly, or show wrong charge levels even with good cells.
Find a ProviderIf the cells test healthy but the pack won't charge or cuts out, the BMS is usually the culprit. A diagnostic confirms it.
Yes - in many packs the BMS is a separate board that can be swapped without replacing the cells, saving money.
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