My wife has an Asus k50IJ laptop with a bad battery, it's old. I bought a replacement from newegg which is http://www.newegg.com/Product/Product.aspx?Item=9SIA0U01FM9451
Original battery specs:
Asus Li-Ion Battery Pack A32-F82 L0690L6
+11.1v/440mAh, 46Wh
Replacement specs:
11.1v/4400mAh
The...