Home laptop battery ACER Extensa 4120 Series batteries Compatible Laptop Battery for ACER Extensa 4120 Series Click to enlarge Find other parts of your ACER Extensa 4120 Series Extensa 4120 Series laptop battery 5200mAh 11.1V 40.88AUDExtensa 4120 Series Laptop AC Adapter39.99AUDExtensa 4120 Series Keyboard 25.99AUDExtensa 4120 Series LCD Screen 99.99AUDExtensa 4120 Series DVD Burner 26.99AUD Code:1 Special price: $AUD Number: Brand new product with 1 year warranty! This Extensa 4120 Series batteries replaces: This Extensa 4120 Series batteries is compatible with the following models: