why Apple would want to release their Apple Battery Charger product, since you can pretty much get batteries anywhere, and I think it comes down to Apple wanting to do their part in eliminating the annoyance that many have with changing batteries when a device runs out of juice. With the introduction of the Magic Trackpad, Apple now has three devices that are powered by AA batteries, with the other two being their wireless keyboard and Magic Mouse. According to Apple, they were able to come into the battery market with a few key advances. One such feature is an intelligent power management system so that once the batteries are charged fully, it goes into a low power state, using about 90% less power than your average charger. That’s nice. The batteries also have a long service life, which Apple says is up to 10 years. Also nice. Still though, this isn’t really a market that Apple needed to be in.

In our opinion, Apple’s goal here was to innovate a bit for the benefit of their own products. They sell you six batteries so you can have two in a wireless keyboard, and two in a Magic Trackpad or Magic Mouse, and then you can also have two always in the charger, ready to be swapped. It pretty much eliminates worry of running out of juice, which gives you all of the benefits of having wireless devices with none of the drawbacks since you always have two fresh batteries ready for you (unless you somehow have both the wireless keyboard and the pointing device run out at the same time.)