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Well I don't know how a bms locked behave... Mine alow charge for 2s and then stop. When the powerpack is plugged on the bike it does allow power to flow to the motor. Only the charging is a problem...

I recently had a problem with a Bosch power pack 400 wh from 2014. The battery wouldn't charge anymore. One led was on and when the charger was connected it will blink about twice (charging) and then will stop. I opened the pack and could locate a block of 4 cells (10 block of 4 in seriel with a...