Laptop Battery, 3700mAh, Li-Ion
From Amazon
MicroBattery Laptop Battery for HP 39Wh Li-Pol 11.4V 4200mAh, CI03, CI03XL, CIO3, CIO3XL, HSTNN-U (39Wh Li-Pol 11.4V 4200mAh Black, ProBook 640 G2, ProBook 645 G2, ProBook 650 G2, ProBook 655 G2,
Athema Services
coreparts laptop battery for hp 41wh li-ion 11.1v 3700mah mbxhp-ba0125