Electric Scooters

[oj88]

the BMS should protect the battery from over-discharging.., btw how did you recharge the battery? does the batter have external ports past the BMS?

See procedure #3.

Normally on these scooters, once the battery voltage has been raised to within the nominal voltage, the normal charging circuit should allow the batteries to be recharged.

it looks like your battery is just a battery with no built-in protection system.

your ESC also acts as the BMS, from the picture, i can see the main battery cable and the balance charging port.

maybe you can install a new BMS module that will handle the charging of the batteries

Those aren't balance cables. Documentation states that they are data/communication wires between the BMS and ESC. The BMS is inside the battery pack, as with the screengrab below. The charging cable also goes directly to the BMS. The ESC module doesn't manage the charging, one way or another. It just receives battery and charge status from the BMS via the data cables.