Potential issues upon receiving the goods: Battery shows fully charged but cannot be used
There are two possible reasons:
1. “Phantom charge”: The battery shows full charge but the cells are actually depleted, resulting in insufficient voltage to power the device.
2. Protection board lock-up (most common reason): Overcharge/overtemperature triggers protection. A full charge triggers overcharge protection, and the device stops charging when power is off.
Solution steps:
1. Remove the battery and let it sit for 5 minutes. Reinstall it firmly. Do not use a fast charger; use a regular slow charger for another 30 minutes to activate the depleted cells. (Our charging equipment is a super-fast charger, 30% faster than most chargers on the market. Customers can use a regular charger first.)
2. Power off and let it sit – Remove the battery, let it sit for 10 minutes, and then reinstall it. The protection lock will automatically disengage.














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