CWK 12 Cell 8800mAh High-Capacity Battery for HP Pavilion DV6-6153CL DV7-4171US G6-1C79NR DM4-1062NR DM4-2180US DV6-6C48US DV6-6C54NR DV7-4174CA DM4-1018TX DV6-3015TX DV6-6136NR DV6Z-3200