Patent ID: 8343654

Claim:
A rechargeable battery pack comprising at least one power interface for transferring power from the battery pack to an appliance during use and a single charger input terminal to which an output terminal of a battery charger is connectable during use for charging the battery pack, wherein the rechargeable battery pack comprises one or more lithium-ion batteries, wherein the single charger input terminal is connectable to the output terminal of the battery charger when the battery pack is connected to the appliance and when the battery pack is not connected to the appliance, the rechargeable battery pack further comprising a connecting portion which in use allows the battery pack to be physically connected to the appliance, wherein the connecting portion is an upstanding protrusion which extends from a top surface of a casing of the battery pack, wherein the connecting portion is insertable into a docking portion on the appliance, and wherein the charger input terminal is located on the protrusion.