TLC&reg;11.1v 5200mah Replacement Laptop Battery for DELL Inspiron 1318, XPS M1330 Battery type: Li-Polymer; Capacity: 5200mAh/58Wh; Voltage: 11.1V; Under 100% Aging Test. Up to 500 cycles life, low self-discharge, no memory effect; Dual IC chips provide protection against short circuit, over-discharge, overcurrent. CE/FCC/RoHS certified for product safety. Grade A Cell ensures fast charging and low power consumption; Built-in circuit protection ensures both safety and stability. Operation time for standard batteries(6-Cell, 5200mAh): Around 3 hours, the actual operation time will depend on how much electricity is required by the device and how you use it.