Puredick&reg; Replacement Laptop Battery for A42-G73 A42-G53 G73-52 ASUS G73 G73G G73GW G73J G73JH G53 G53J G53SX-A1 G53SW -12 Months Warranty[Li-ion 8-cell 14.8V 4400mAh] Battery Type: Li-ion || Voltage: 14.8V || Capacity: 4400mAh || Cells: 8-cell 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. CE-/FCC-/RoHS certificated for safety,12 months warranty,professional technical support, efficient and always satisfied customer service 24 x 7 email support. 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.