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Rechargeable AA batteries make sound economic sense, but their rapid self-discharge rate in storage means that they’re often dead at the time you most need them. But Sanyo’s Eneloop cells represent an exciting new breed of long-life NiMH batteries which [...]
Lithium battery technology isn’t just used for rechargeable cells. It’s also possible to get disposable lithium batteries, made by Energizer, for example. These are more expensive than alkalines, but their capacity and voltage characteristics make them perform far better in [...]