AA/Generic SilverityUS 20 pcs AA LR06 3000mAh Ni-Mh 1.2V rechargeable battery Cell RC BTY for MP3 RC BTY US Stock BONUS CHARGER + 20 X AA 3000mAh Rechargeable Battery 100% Brand New Chemistry : Ni-MH (Nickel Metal Hydride) Rechargeable Times : Up to 1000 times. No memory effect,Environmental friendly.