Go to Amazon.com : http://www.amazon.com/gp/product/B004LLEX20?tag=theatrecat-20
Battpit? Laptop / Notebook Battery Replacement for Acer Aspire 7540-1284 (4400mAh / 65Wh)
Type 148 Volt Li-ion Laptop Battery
Capacity 4400mAh 65Wh Condition New
30-Day Money Back Guarantee 1 Year Warranty
This is a genuine Battpit product comes with 1 year warranty Beware of imitation Battpit bears no responsibility on the imitation product purchased
This battery only compatible with 144V and 148V versionNot compatible with Aspire 8930 Series models