Apparently, this combination is well known in e-bike enthusiasts world as having a huge problem of BMS disconnecting the load while braking with full battery. The driver manufacturer simply pointed out the statement in datasheet that lithium-ion batteries are not supported and we are basically on our own.
Plug braking causes high currents to flow through both the battery and the motor. Lead acid batteries are generally fine with very high currents. However a BMS for a Lithium ion battery may well decide the battery is drawing too much current and disconnect the battery.
Long version We are using third party motor driver with regenerative braking and a lithium-ion battery. Apparently, this combination is well known in e-bike enthusiasts world as having a huge problem of BMS disconnecting the load while braking with full battery.
The correct solution is to provide both regen and mechanical brakes in the vehicle. If the battery is full, the mechanical brakes are used instead. Also, the mechanical brakes are used at low speed, when regen is less effective (regen cannot hold a vehicle stopped on a hill, for example).
It is found that longer duration charging current obtained from regenerative braking that is irrespective of current intensity is the prominent factor of battery deterioration. If the SOC and the temperature are not in the optimal range, the Lithium plating rate increases.
That rotor and gear combo replaces your existing brake rotor on your wheel. The motor unit is then mounted to the frame or fork using the disc brake’s caliper mounts. That allows a drive gear on the motor to spin the wheel-mounted gear, propelling the bike.
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