Go to Amazon.com : http://www.amazon.com/gp/product/B00AHKI140?tag=theatrecat-20

LB1 High Performance Battery for HP PAVILION DV4-1275MX Laptop Notebook Computer PC [12-Cell

LB1 High Performance battery for HP PAVILION DV4-1275MX are environmentally friendly and certified by RoHS to be free from mercury - lead - cadmium - PBDE and PBBs
LB1 High Performance Commercial Grade Laptop Batteries for HP PAVILION DV4-1275MX are custom manufactured to be 100 compatible and optimized for your HP PAVILION DV4-1275MX laptop
HP PAVILION DV4-1275MX High Performance notebook battery utilizes high quality grade A cells for higher performance longer life and more reliability
HP PAVILION DV4-1275MX High Performance meets andor exceed OEM specification and will not void your original manufacturer warranty
Fast charging Low power consumption Built-in protection circuit ensures both safety and stability
Batteries capacity 8800 mAh Chemistry Li-ion Voltage 108 Volts Cells 12 Cells 95