This is the most common cause, where long-term inactivity leads to self-discharge below the critical safety threshold, triggering the BMS to disable the output. To confirm this, ensure the battery is connected to a known-working charger for at least 6 to 24 hours. If the charger indicates a charging state or if the terminal voltage begins to rise slowly after an extended period, it confirms the BMS was in a low-voltage protection lockout.
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