FOUR PACK Replacement AT&T Lucent 103 Rechargeable Battery for EP-560 / EP560 and EP-590 / EP590 Series Cordless Phones Accessory Power Brand, Non-OEM; Replaces Part # : AT&T Lucent 103 Specifications: Voltage 3.6V (volts) Capacity 800 mAH Chemistry: Ni-MH Free Extended 3 Year Manufacturer's Warranty ; European Quality with Silicon Valley Technology; Customer Satisfaction Guaranteed