55.8Wh 11.55V Battery LK03XL for HP Envy X360 15m-bp111dx 15m-bp112dx TPN-W128
48.01Wh 11.4V LK03XL. Always use an original adapter, low quality adapter will kill the battery quickly. DrLappy, based in Hong Kong, has been in the laptop parts sourcing field for 12 years.