Patent ID: 11870288
Assignee: nan
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 18:
19. The method of claim 13, wherein at least one of:
the master battery management system conditions the battery system between a charging mode when the external connection port is connected to an external charger and a discharging mode when the external charger is undetected via the external connection port;
the master battery management system conditions the battery system between the discharging mode and the charging mode when a charger detection connector of the external connection port is connected to a ground contact of the external charger; and
the external connection port comprises a data communications interface and the master battery management system conditions the battery system to a charging mode when the external charger communicated an external device identifier message to the battery system via the external connection port.