both Duracell and Energizer sell a ‘one hour’ charger, among other models. Exactly how long it will take depends on the capacity of your rechargeable batteries. In the same charger, higher-capacity ...
(Note that the batteries aren't rechargeable ... Battery life was 7.3 hours for an Energizer, 6.8 hours for a Duracell, and 4 hours for a Toys "R" Us battery.
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