I've noticed with some rechargeable batteries (Sanyo especially) they run at 1.2v, is that the case with these or are they at the normal 1.5v?

Apple Battery Charger

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  • Best Answer:

    All NiCD and NiMH batteries (including these) are "nominally" 1.2V (but can reach 1.45-1.6V fresh off the charger). Most disposable batteries are 1.5-1.6V when new but are down to 1.2V around when they're halfway used at moderate power drain, and earlier for high-drain devices. Any device that will not work down to 1V (per battery) isn't giving you your money's worth out of alkalines. Lithium AAs are different yet again, running 1.6-1.7V, which can be good or bad depending on the device (it'll burn out incandescent flashlight bulbs early).

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  • For rechargeable AA batteries, 1.2 V is the standard. Since Apple is saying the charger will work with other brands of NiMH rechargeable batteries, it seems reasonable to assume that they are following the standard. In any event, Apple is making this product specifically to power its own devices, and even if they're "only" 1.2 V, they will be fine for their intended uses.

    Most modern electronics are capable of dealing with the lower voltage of rechargeables, but if you have some other product that absolutely requires the full 1.5 V of standard non-rechargeable batteries, you would do well to simply use those instead.

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  • All NiMH batteries are 1.2 volts. They work fine with devices that only require a few batteries like Apples wireless keyboards and mice but they may not work with devices that use more batteries. I have tested NiMH batteries in a device that requires 3 batteries and it works fine. If you need 1.5 volts per batteries, try getting rechargeable alkalines.

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  • Printed on the batteries supplied with the charger: "Size AA Ni-MH Min. 1900 mAh 1.2V HR6"

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  • These are AA NiMH batteries, which are all 1.2 volts.

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  • I've been using NiMH's for ten years. As a photographer, I need plenty of power as my off camera flashes are very 'high drain' devices. I try to purchase 2400 to 2600 mAh capacity AA batteries whenever possible as these will give me more flashes between charges. As was stated earlier in another answer, after just a little use, the voltage will drop to 1.2 volts in any AA or AAA battery. My flashes each use 4-AA batteries at a time which produce as many as 600 powerful flashes.
    These batteries, at 1900 mAh, are more than sufficient for low-medium drain devices and should last a long time in the electronics mentioned here such as keyboards. They will most likely last 4 to 6 months on one charge perhaps longer.

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