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Black rectangular lithium-ion laptop battery with label showing model WP03XL

KingSener

KingSener WP03XL 51.3WH laptop battery

SKU CH-Z6EX-NBRTB MPN WP03XL

51.3Wh lithium-ion replacement battery for HP EliteBook 830, 835, 840, 845, 860, 865 G9 and G10, X360 1040 G9 and G10, and ZBook Firefly 14 G9 and G10 models

  • Battery Voltage11.58V
  • Battery Capacity51.3WH/4249mAh
  • 3WH capacity supports long work sessions away from power
  • 58V lithium-ion chemistry delivers stable voltage for reliable performance
  • Replaces 13 original HP part numbers for exact fit
  • Compatible with EliteBook 830, 835, 840, 845, 860, 865 G9 and G10 models
  • Fits ZBook Firefly 14 G9 and G10 mobile workstations

HP EliteBook and ZBook Compatibility

This 51.3WH lithium-ion battery replaces the WP03XL unit in HP EliteBook 830, 835, 840, 845, 860 and 865 G9 or G10 models. It also fits EliteBook X360 1040 G9 and G10 convertibles plus ZBook Firefly 14 G9 and G10 mobile workstations. The 11.58V 4249mAh cell matches the original voltage and capacity specifications.

Who This Suits and Who Should Look Elsewhere

Owners of the listed EliteBook, X360 or ZBook models needing a direct 51.3WH replacement will find the correct part numbers covered. Buyers with other HP series, different voltage requirements or higher capacity demands cannot use this battery.

Deciding Specification — 51.3WH Capacity

The 51.3WH rating determines whether this unit matches the original runtime envelope for the compatible laptops. Verify the watt-hour figure on the old battery before ordering to ensure it aligns with the 51.3WH specification.

Highlights

  • 3WH capacity supports long work sessions away from power
  • 58V lithium-ion chemistry delivers stable voltage for reliable performance
  • Replaces 13 original HP part numbers for exact fit
  • Compatible with EliteBook 830, 835, 840, 845, 860, 865 G9 and G10 models
  • Fits ZBook Firefly 14 G9 and G10 mobile workstations

Specifications

BrandKingSener
ModelWP03XL
Part NumberWP03XL
M64304-421
HSTNN-LB8V
M64304-1D1
M73466-005
M64305-421
M64304-422
M64304-AC1
L78555-005
HSTNN-LB8W
HSTNN-OB2J
HSTNN-LB9C
HSTNN-IB9Y
HSTNN-IB9X
31CP6/60/75
Battery Voltage11.58V
Battery Capacity51.3WH/4249mAh

Questions about this item

Does the WP03XL battery ship with any cables or tools, or must they be bought separately?

The KingSener WP03XL is supplied as a standalone 51.3WH lithium-ion battery; no cables, screws or installation tools are included.

How do I know which of the listed part numbers matches my HP EliteBook 830 G9?

Match the original battery label to any of the compatible part numbers such as M64304-421, HSTNN-LB8V or L78555-005; all refer to the same WP03XL unit.

What runtime can I expect from the 51.3WH capacity in an EliteBook 840 G10?

The 51.3WH / 4249mAh rating at 11.58V restores the factory capacity, so real-world runtime equals the original battery when new.

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