BrainyTrade Replacement Battery for Apple PowerBook G4 15" A1148 A1078 A1045 M9756 (Silver, 10.8V, 4400mAh) Colour: Silver. Type: Li-ion Voltage(V): 10.8. Capacity(mAh): 4400 Replacement for: 661-2927, A1148, A1078, A1045, M9756, M9756G/A Fit model: Apple PowerBook G4 15" Series The replacement Battery is in high grade quality and certified by CE and RoHS. Please make sure that the battery part numbers listed in the description matches the battery part number on your original battery before you purchase