Features: * Its external dimension is identical with 2 pieces of "A" batteries, built in charger, convenient to use! * Adopt protective hi-capacity Ni-MH batteries, no memory effect, long lasting life over 400 times charging * Charge two times equals to 2 pcs "A" dry batteries, economical enough!! * Broadly use with TORCH!!! * Specification: * Built in batteries: 2 pcs "aa" 800mAh Ni-MH batteries * Charging voltage: AC 110 -220V 50/60Hz * Charging time: about 12 hours * Output voltage: DC 2.4V * Size: 33(dia) x 120(L) mm * Weight: 142g