Floureon 3 Packs 3.6V 1000mAh Rechargeable Cordless Phone Telephone batteries for Panasonic: HHR-P103 R Vtech I5808, I5858, I5871, IA5871, 8100-2, 81002, 8100-3 Brand: Floureon ( 1 year warranty and friendly customer service) Voltage: 3.6V (Compatible with 3.7V), Capacity: 1000mAh Type: Replacement Battery Rechargeable: Yes Chemistry: Ni-MH