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Rectangular black laptop battery with label showing 55.8Wh 11.55V

myVolts

myVolts LK03XL 55.8Wh 11.55V laptop battery

SKU CH-CB73-W8P8D

Replacement battery delivering 55.8 Wh at 11.55 V for HP Envy X360 15 and 17 series laptops

  • 8Wh capacity extends unplugged runtime for HP Envy X360 15-inch and 17-inch models
  • 55V output matches original specification for stable system power
  • Replaces HP part numbers LK03XL, 916368-541, 916814-855 and HSTNN-LB7U directly
  • Class A lithium cells support faster, safer charging cycles
  • Supports Envy X360 15-BP, 15-BQ, 15M-BP, 15M-CP, 15M-CN and 17-AE, 17M-AE, 17-BW series

55.8Wh replacement battery for HP Envy X360

This 11.55V lithium battery replaces part numbers LK03XL, 916368-541 and HSTNN-LB7U across HP Envy X360 15-BP, 15-BQ, 15M-BP, 15M-CP, 15M-CN, 17-AE, 17M-AE and 17-BW series. It is a new Class A cell built for faster, safer charging.

Suits owners of the listed Envy X360 models

Not for users whose laptop uses a different voltage or connector, or who need a higher-capacity pack than 55.8Wh. Buyers with non-HP chassis or incompatible part numbers should look elsewhere.

Fits inside the existing battery bay without extra

The pack uses the original 11.55V interface so the laptop's power management works unchanged. No external charger or mounting hardware is required; the original AC adapter continues to charge the cell normally.

Highlights

  • 8Wh capacity extends unplugged runtime for HP Envy X360 15-inch and 17-inch models
  • 55V output matches original specification for stable system power
  • Replaces HP part numbers LK03XL, 916368-541, 916814-855 and HSTNN-LB7U directly
  • Class A lithium cells support faster, safer charging cycles
  • Supports Envy X360 15-BP, 15-BQ, 15M-BP, 15M-CP, 15M-CN and 17-AE, 17M-AE, 17-BW series

Specifications

No published specifications for this item yet.

Questions about this item

Which HP Envy X360 models does the 55.8Wh 11.55V LK03XL battery replace?

The battery replaces HP part numbers LK03XL, LK03, 916368-541, 916814-855, 916368-421, HSTNN-LB7U, HSTNN-LB8J, HSTNN-UB71, HSTNN-UB7I, L08855-856, L09281-855, L09280-855, L09911-141, LK03048XL, LK03055XL, TPN-W127, TPN-W128 and TPN-I129, covering Envy X360 15-BP, 15-BQ, 15M-BP, 15M-CP, 15M-CN, 17-AE, 17M-AE and 17-BW series.

Will the battery fit my existing HP Envy X360 15-BP107TX without any chassis modification?

Yes, the LK03XL is a direct replacement for the original 11.55V 55.8Wh pack used in the 15-BP107TX and all other listed 15-BP, 15-BQ, 15M-BP, 15M-CP, 15M-CN, 17-AE, 17M-AE and 17-BW models, so it seats in the same bay with no modification.

How can I verify the new battery is delivering the rated 11.55V and 55.8Wh after installation?

Boot the laptop, open the BIOS or HP Support Assistant and check the reported voltage and full-charge capacity; they should read close to 11.55V and 55.8Wh respectively when the pack is fully charged.

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