Well this is a bit of an unexpected surprise: Apple has jumped into the business of rechargeable batteries, releasing their own Apple Battery Charger. The six battery and charger system is perfect Apple users with wireless peripherals that need regular battery replacement, but these batteries are rated for a 10 year life, giving them an impressive longevity.
The Apple Battery Charger has also been engineered with an intelligent power management system which tapers back power once the batteries have reached full charge; just enough to keep them topped off with power, but with a reduction which should limit vampire energy use. The charger can only charge up 1-2 batteries (we would have preferred 4 and AAA size option), but is also compatible with AA NiMH batteries from other companies and even after a year of storage, charged batteries still retain 80% of their original charge.
Available now for $29.00.