Whether driving, walking, or traveling by other means; your Rechargeable NiMH Battery Kit from Garmin will keep you powered up and ready for navigating. The kit may be used to charge two AA or two AAA nickel-metal hydride (NiMH) batteries and uses an AC outlet. The kit includes two AA NiMH batteries and international adapter plugs for the U.S, U.K, Europe, and Australia.