TGF&reg; New VI04 Laptop Battery for HP ProBook 440 G2 450 G2 Q140 Q141 Q142 Q143,HP Envy 14 15 17 Series--[Li-on 4CELL] Battery Type: Brand New - High Quality,4 cell,14.8V,2200mAh Battery Fit Laptop Models: HP ENVY 756479-421 756478-851 756745-001 88182750117 G6E88AA G6E88AAABB CE-/FCC-/RoHS-Certified for safety. Warranty: 12 Months warranty, 30 days money return guarantee.