CSE New Laptop Replacement Battery for ASUS K53 K53E X54C X53S X53 K53S X53E A32-K53 A41-K53-12 Months Warranty [Li-ion 6-cell 5200mAh] Battery type: Li-ion; Capacity: 5200mAh/56WH; Cells: 6-cell; Voltage: 10.8V. 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. CE-/FCC-/RoHS-Certified for safety. 24 x 7 email support,12-month hassle-free warranty. Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. Operation time: Operation time for standard batteries(6-cell, 4400mah): Around 2 hours, the actual operation time will depend on how much electricity is required by the device and how you use it.