Systems and methods for charging low power devices are disclosed. One disclosed method for charging accessory comprises coupling a port of the accessory to a first connector of a charging device, coupling a port of a phone to a second connector of the charging device, and transferring power from a battery of the phone to a battery of the accessory via the charging device. The port of the phone is a lightning port. The accessory is an electronic cigarette. The first connector is compatible with the accessory.