The Apple Battery Charger is almost a freebie, when you consider that its £25 (inc. vat) price tag includes 6x AA rechargeable batteries. The good news doesn't stop there. The Apple Battery Charger is smart. It knows when batteries are fully charged and reduces its charging current to a mere trickle, just enough to maintain the full charge without hurting the batteries. That also reduces its standby power levels to a very low 30 milliwatts, one of the lowest power consumptions in current available battery chargers.