Description: Safety and Excellence Features: * No memory effect, fast charge * Low power consumption IC design * Tested with strict quality control standards * Over-charge protection * Over-discharge protection * Over-heat protection * Over-current protection * Short-circuit protection * High capacity circulatory function Specification: Battery type: Li-Polymer Voltage: 11.4V Capacity: 51Wh Cell:3 Cells recharge cycles? 500 Operation time: Around 1.5-3hours Compatible P/N: CI03 C103XL HSTNN-UB6Q 801554-001 Compatible Model: HP ProBook 640 G2 HP ProBook 645 G2 HP ProBook 650 G2 HP ProBook 655 G2