Fully-sealed rechargeable battery power pack. Supplied complete with 240v and 12v chargers, which connect into an external plug on the handle unit. The NiMH battery is resistant to memory, and over-charging, and should last 500 cycles. A red light indicates charging and a green light indicates charging is complete. A full charge from flat will take 8-10 hours. Weight 600gm.
NB: For optimum battery life, run fully flat occasionally, and try not to continually over-charge.