Tips: Please check carefully about your laptop model name/battery part number/battery shape and size to make sure you purchase the correct battery. Specification: Battery type: Li-ion Voltage:7.6V Capacity:55Wh Cell:4 Cells recharge cycles: 500 Operation time: Around 1.5-3.5hours REPLACEABLE PART NUMBER: J60J5 R1V85 451-BBSX 451-BBSY 451-BBSU MC34Y 242WD 0MC34Y PDNM2. COMPATIBLE LAPTOP MODELS: Fit For Dell Latitude 12 E7270 P26S001, Fit For Dell Latitude 14 E7470 P61G001 Series. Note: To ensure that the battery is suitable for your laptop,please open your laptop case, check and confirm your battery model and appearance, compared with our battery image, make sure that's what you need.