Product Description of High Quality HP Pavilion 15-R221TX Series Laptop Battery: Capacity: 2200 mAh | Voltage: 14.4 V | Number of cells: 4 Quality HP OA04 Battery – 100% compatible with your laptop, identical size, including all electronic safety measures. Highly Compatible HP OA04 Battery for HP OA03, OA04, CQ14, CQ15 laptops. Compatible Parts Numbers: HP 0A03, HP 0AO4, HP 245 G2, HP 246 G3, HP 255 G2, HP 256 G3, HP 740004-421, HP 740004-852, HP 746458-141, HP 746458-851, HP CQ14-A001TU, HP CQ14-A104TX, HP CQ15-A102TX, HP F3B94AA, HP HSTNN-PB5Y, HP J1U99AA, HP OA04041, HP TPN-F112, HP TPN-F115, HP 0A04, HP 240 G2, HP 245 G3, HP 250 G2, HP 255 G3, HP 740004-121, HP 740004-422, HP 740715-001, HP 746458-421, HP 746641-001, HP CQ14-A003TX, HP CQ14-A105TX, HP CQ15-A103TX, HP HSTNN-LB5S, HP HSTNN-XB5S, HP OA03, HP TPN-C113, HP TPN-F113, HP 0AO3, HP 240 G3, HP 246 G2, HP 250 G3, HP 256 G2, HP 740004-141, HP 740004-851, HP 746458-121, HP 746458-422, HP CQ14, HP CQ14-A101TX, HP CQ15, HP F3B94AA#ABB, HP HSTNN-LB5Y, HP HSTNN-XB5Y, HP OA04, HP TPN-C114