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The Apple Battery Charger's product description page states:

The Apple Battery Charger can recharge one or two batteries at a time. It's optimized for Apple-supplied batteries and it works with AA NiMH batteries from other companies, too.

Does anyone know the required specifications for using non-Apple batteries?

The Apple supplied batteries are AA Ni-MH Min. 1900 mAh 1.2V HR6.

I have some Powerex AA Ni-MH Min. 2500 mAh 1.2V, so I'm wondering if they are compatible. I'm also curious what other non-Apple batteries are compatible.

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up vote 2 down vote accepted

Apple Batteries are Rebranded Sanyo Batteries

According to engadget, the Apple supplied batteries are actually Sanyo Eneloop HR-3UTG, so it appears that's one option for buying additional batteries to use with the Apple Battery Charger.

Powerex Batteries Don't Work

According to the Apple Battery Charger Manual,

  • Flashing Amber: May indicate any of the following conditions:
    • The batteries haven’t been properly installed in the charger.
    • An unsupported type of battery is in the charger.
    • The batteries may be faulty or damaged and should be replaced.

With that information, I tried charging the Powerex 2500 and 2700 batteries but received a flashing amber light.

Looks like I need to buy some of the Sanyo Eneloop HR-3UTG batteries.

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Well, I sometimes get flashing amber with the Apple-supplied batteries. If so, I take them out and carefully reinsert them, then charging begins. So perhaps make no conclusion about other batteries based on a single try. – GEdgar Jun 10 '11 at 14:44
@GEdgar: I also get the flashing amber sometimes with the Apple supplied batteries, so I did remove and reinsert to make sure that it wasn't a fluke. – Matthew Rankin Jun 10 '11 at 23:38

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