Outecc replacement laptop battery For HP ProBook 440 445 450 455 470 G2,ProBook 440 445 450 455 G2 756744-001 VI04 756479-421 HSTNN-LB6J, 14-V121LA, 14-V140LA 14.8V (do not fit 11.1V or 10.8V) 2600mAh / 2800mAh 44WH FITS FOR HP Pavilion 15-p000 - p099; HP Pavilion 15-x000 - x099; HP Pavilion 17-f000 - f099; HP Pavilion 17-x000-x099; HP Envy 14-v000 - v099; HP Envy 14-u000 - u099; HP Envy 15-k000 - k099; HP Envy 15-x000 - x099; and HP Envy 17-x000 - x099 756479-421(41CR19/66) HSTNN-LB6J VI04 HSTNN-LB6K TPN-Q144 TPN-Q140 New Generic, 1 year warranty, US ship Any problem, please feel free to contact us, we must response in 24 hours.