Emaks 45N1762 Battery 45N1763 for Lenovo ThinkPad (Edge) E550 E550C E555 E560 E565 Series 45N1758 45N1759 45N1760 45N1761 - 10.8V 4400mAh 6Cell 76 Specifications:Cells: 6-cell ll Capacity: 4400mAh ll Voltage: 10.8V Fits Models:Lenovo ThinkPad (Edge) E550 E550C E555 E560 E565 Series;45N1758,45N1759, 45N1760, 45N1761,45N1762,45N1763 Condition:Emaks products are CE / FCC / RoHS certified, tested by the manufacturer to match and / or exceed the OEM specifications Class A cells provide fast loads and low power consumption, chip protection offers both security and stability. Reliable and friendly customer service ready to respond within a 24 hour time frame.