Overview amp Features Introducing our revolutionary new rechargeable battery the USBCELLThis Ni MH AA cell can be used like a normal battery & can be recharged simply by plugging into a USB (Universal Serial Bus) port With over 15 billion Alkaline batteries made & thrown away each year wasting resources C02 & creating toxic Landfill USBCELL offers a ecofriendly alternative as can be reused hundreds of times as no charge adaptor or cable is needed saving you money hassle & waste Buy USBCELL today Technical Specifications 90 Charged after 5 Hours by powered USB (Universal Serial Bus) Also rechargeable by approved Ni MH charger at 250ma for 7 Hours