Description 640 G1 R HP Laptop Battery 640 G1 R HP Laptop Battery 10.8V 4400mAh(6 cells) replacement HP ProBook 640 G1 Laptop battery is totally compatible with the original manufacturer’s specifications. Through tested, all our Li-ion replacement batteries for HP ProBook 640 G1 have been certified to meet and even exceed the original battery performance. Each replacement battery of the HP ProBook 640 G1 laptop has been tested on the HP system before being dispatched to ensure the safety of your HP laptop. 640 G1 R HP Laptop Battery carries with a smart interior circuit board that provides battery-unbalanced-shut-off protection, thermal-runaway protection, overcharged protection, over-discharged-shut-off protection, and high/low-temperature-shut-off protection.
