Patent attributes
A rechargeable battery pack can provide power to a device that also accepts at least one standard non-rechargeable battery. The rechargeable battery pack may include a housing for housing at least one battery cell and recharging circuitry. The at least one battery cell and the recharging circuitry can be housed substantially within the housing. The recharging circuitry can be coupled with the at least one battery cell. The recharging circuitry can be configured to charge the at least one battery cell when the battery pack is inserted into the device that also accepts at least one non-rechargeable battery. The rechargeable battery pack may further include a protection circuit coupled with the recharging circuitry.

