Output: DC AA 1.6V 400mA / AAA 1.6V 200mA. Material: Nickel Zinc. For AAA 500-1200mAh : 2 or 4 pcs: 3-6 hours. It is better to end use at 1.1-1.3 volt. For AA 1300-2800mAh : 2 or 4 pcs: 3-7 hours. O ver heat: More than 40C degree during charging or 60C degree during use can make Zinc material change.
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