Buy from Amazon.com : https://www.amazon.com/gp/product/B005FD0X2C?tag=bromabakery0d-20
ACER Aspire One 101 Black Aspire One 89 Black Aspire One Pro 531f2G64Bk eMachine
Product Description :
Type Li-Ion Voltage111v Capacity4400mAh6 Cells
1 year replacement warranty30-day refund guarantee after the purchase
High Capacity Replacement battery
Each Superb Choice battery was tested at an original laptop by the manufacturer
If your original battery is a 3-cell battery this 6-cell battery has much higher capacity and works longer hours after each charge However it is bigger AND sticks out a little due to the extra 3 cells It will still fit in your laptop