CSE&reg; New Laptop Battery for Dell XPS 14 / 15 / 17 / 14D / 15D / 17D / L401X / L501X / L502X / L701X / L701X 3D, Fits P/N 312-1123 312-1127 453-10186 J70W7 JWPHF R795X WHXY3 [Li-ion 11.1V 6-cell 5200mAh] - 12 Month Warranty Battery type: Li-ion; Capacity:5200mAh/58WH; Cells:6-cell; Voltage: 11.1V. Overcharger and Discharger Circuit Protection, CE-/FCC-/RoHS-Certified for safety. 24 x 7 email support, 12-month hassle-free warranty. Contain with Durable cells; Low power consumption IC design; Tested with strict quality control standards; Direct warranty from Manufacturer. Operation time: Operation time for standard batteries(6-cell, 5200mah): Around 2 hours, the actual operation time will depend on how much electricity is required by the device and how you use it.