Egoway 5200mAh Laptop Battery for Acer AS10D AS10D31 AS10D41 AS10D51, Aspire 4741 5733Z 5742 5750 7560 7741Z 7750G, TravelMate 5735 5740, Gateway NV55C NV53A NV59C Equipped With Higher Quality SAMSUNG Cells yet has Same Size & Shape as an OEM Battery ; Battery Type: Li-ion; Voltage: 11.1V; Capacity: 5200mAh; 6 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: 12 Months, 30 days money return guarantee, 24 x 7 email support.