Specifications:

Battery type: Li-ion

Voltage: 11.25 V

Capacity: 42 Wh/3770 mAh/3-cell

Condition: 100% new from manufacturer, grade A cell 

Compatible part numbers:

AP16A4K KT.00304.003 KT.00304.007 3ICP4/68/111

Compatible models:

Acer Swift 1 SF113-31 Series

Acer Aspire One Cloudbook 11 AO1-132 Series