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Even though this is over twice the voltage of a standard 1.5v AAA battery, I find most devices are overprotected and will work with slight increases in voltage. I use one of these in tandem with a low-voltage (0.5 to 1.0 volt) battery to generate 3.7-4.2 volts which most devices (keyboards, mice, HDTV tuners) can handle. Not a guarantee, but if it works its a way of getting additional use from a worn-down but still usable AAA battery. Plus the battery is rechargeable and a 3.2v charger with LCD display (highly recommended) will get your value for these batteries. The only risk is that a device might not work this way but then you can go back to regular AAAs. Lithium rechargeable is green-friendly and saves you money!
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they work great in remote controls requiring even numbered AAA batteries, when paired with a dummy battery made from an al-foil covered dowel.
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Receiving the batteries would've been nice.
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