Full Product Info on Amazon.com : https://www.amazon.com/gp/product/B005G7U3TU?tag=unlearnreth-20
ACER Aspire 57406378 Laptop Battery Premium Superb Choice 12cell Liion battery
Product Description :
Type Li-Ion Voltage111V Capacity8800mAh12 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 6-cell battery this 12-cell battery has much higher capacity and works longer hours after each charge However it is bigger heavier and sticks out due to the extra 6 cells It will still fit in your laptop