EXTERNAL ADAPTER FOR BATTERY PACK USED TO POWER A PORTABLE DEVICE

摘要

Embodiments include a rechargeable battery pack, system, and power adapter that allow the rechargeable battery pack to both power a host device though a set of host contacts and provide power, through the power adapter, via a set of charging contacts that interface with the power adapter. The power adapter contains a voltage source which activates a control circuit to disable a discharge protection circuit in the battery pack to allow current to discharge through the charging contacts.

主权项

1. A power adapter for obtaining power from a rechargeable battery pack having a set of charging contacts and a set of device contacts, wherein the rechargeable battery back contains protection circuitry to normally prevent discharge through the charging contacts, the adapter comprising:
a set of adapter contacts including a positive adapter contact that mates with a positive charger contact of the rechargeable battery, a negative adapter contact that mates with a negative charger contact of the rechargeable battery, and an auxiliary adapter contact that mates with an auxiliary charger contact of the rechargeable battery; a battery cell connector having a positive terminal connected to the auxiliary adapter contact and a negative terminal connected to the negative adapter contact; and an external power connector having a positive external power connector terminal operably coupled to the positive adapter contact and a negative external power connector terminal operably coupled to the negative adapter contact.