battery Features AA:Capacity: 3800 mAh AAA:Capacity: 3000 mAh 1.Brand:MKEPA 2.High voltage: 1.5V 3.Rechargeable type: AAA, alkaline rechargeable batteries. Environmental protection material 6.Up to 1000 recharge cycles 7.Excellent high discharge / drain performance 8.Exact replacement for standard AAA size batteries 9.Superior performance under low temperature condition 10.Longer in high drain devices. 11.It is for Portable tape and TV remote controls, Clocks and radios, Electronic games, Smoke alarm, Cordless phone, electrical toy, and more. Packaged package: 2AA+2AAA 4AA+4AAA 8AA+8AAA 12AA+12AAA 16AA+16AAA 20AA+20AAA Charger test picture {note: the charger is not included in the order}