This is a generic, equivalent one, 100% compatible. This 11.4V 51Wh Replacement battery is designed to compatible with HP ProBook 640 645 650 655 G2 Series.

Specifications:
* Product Type: generic/equivalent
* Battery Voltage: 11.4V
* Battery Capacity: 51Wh/3cell
* Chemistry: Li-Polymer
* Recharge Cycles：500
* Operation Time: Around 1.5-3hours
* Certification: CE FCC RoHS
* Condition: new, 1 Year Warranty!
* No memory effect, Over-charge protection, Over-discharge protection.
* Over-heat protection, Over-current protection, Short-circuit protection.

Compatible Part Numbers:
CI03, C103XL, HSTNN-UB6Q, 801554-001

Compatible with the following HP Laptop models:
HP ProBook 640 G2
HP ProBook 645 G2
HP ProBook 650 G2
HP ProBook 655 G2

Package Included:
1 x 11.4V 51Wh Replacement Laptop Battery for HP ProBook 640 645 650 655 G2 Series