Egoway 7800mAh Laptop Battery for DELL XPS 14 / 14D / L401X / L402X, fits P/N 312-1127, 312-1123, WHXY3, J70W7, JWPHF, R795X Dell Battery Equipped With Higher Quality SAMSUNG Cells yet has Same Size & Shape as an OEM Battery ; Battery Type: Li-ion; Voltage: 11.1V; Capacity: 7800mAh; 9 Cell. Overcharger and Discharger Circuit Protection, CE-/FCC-/RoHS-Certified for safety Contain with Durable cells; Low power consumption IC design; Tested with strict quality control standards; Direct warranty from Manufacturer. Operation time:Same Battery life with Brand new original Dell battery.In reality, this will depend on the amount of electricity required by the device and how you use it. Warranty: 18 Months, 30 days money return guarantee, 24 x 7 email support.