AA battery,LiFe battery, 1.5V2900mAh,much power,higher capacity,. much lighter just ... in DVD and other digital produc AA battery,1.5V2900mAh LiFe BATTERY ,used in DVD and other digital products. 1, the ... , security is best;4, good cycle life, after 500 cycles, the discharge capacity is still more than 95%;5, discharge to zero ...