42Wh 45N1102 45N1103 Replacement Battery for Lenovo ThinkPad Helix -  -  - Colour: Black, Type: Li-ion, Voltage: 11.1V, Capacity: 3785mAh/42Wh, Warranty: 1 Year, Compatible P/N:45N1102 45N1103, Fit model:For LenovoThinkPad X1 Helix