Apple MC500LL/A Battery Charger with six NiMH batteries The sleek, compact Apple Battery Charger is all about efficient charging. Each Apple Battery Charger comes with six NiMH batteries  two for your keyboard, two for your mouse or trackpad, and two for charging. The Apple Battery Charger has the lowest vampire draw of any similar charger on the market. With the Apple Battery Charger, you no longer have to buy or hassle with the disposal of batteries every few months. The charger works quickly and efficiently. And once your batteries are fully charged, it draws less power than any other similar charger on the market.