38Wh Replacement Battery for HP Elite x360 G9 and EliteBook G9 Series Restore your HP Elite x360 1040 G9, Elite x360 830 G9, or EliteBook 830/840 G9 to optimal performance with this premium 38Wh Li-ion replacement battery. Specifically engineered for HP's business convertible and notebook series, this WP03XL compatible battery delivers reliable power for professional mobile work. Features stable 11.58V output and efficient 3152mAh capacity in a compact 3-cell design.