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Black rectangular 6-cell lithium-ion laptop battery

CPY

CPY CS03XL 6-cell 11.4V 46.5Wh laptop battery

SKU CH-WT6D-5KVDE

A 6-cell lithium-ion replacement battery delivering 11.4 V and 46.5 Wh for compatible HP EliteBook and ZBook models

  • Battery type6 Cell Lithium-Ion
  • Battery voltage rating11.4 V
  • Battery capacity4,035 mAh
  • Team affiliation1 Piece
  • Main functionUL Certificated
  • Product colorBlack
  • Extended runtime for demanding workloads with 46.5Wh capacity
  • Reliable power delivery at 11.4V for consistent performance
  • Six-cell lithium-ion design balances capacity and weight
  • UL certification confirms safety and quality standards
  • Direct replacement for multiple HP EliteBook and ZBook part numbers

Compatible HP EliteBook and ZBook models

This 6-cell lithium-ion battery fits HP EliteBook 745, 755, 840 and 850 G3 and G4 notebooks as well as ZBook 15u G3 and G4 mobile workstations. It replaces part numbers 800231-141, 800513-001 and the CS03XL series.

46.5 Wh capacity and 11.4 V output

The pack delivers 46.5 Wh at 11.4 V with a 4035 mAh rating, providing a direct swap for the original HSTNN-UB6S or HSTNN-IB6Y units. Runtime matches the factory specification for typical office workloads.

UL certified black 6-cell pack

The black enclosure carries UL certification and weighs 8 oz, requiring no additional cables or adapters for installation. It frees the user from a worn-out original cell and restores full mobile operation.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $10.99
Cheaper than about 91% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameHP
Model nameFor HSTNN-UB6S, For 800513-001, For HSTNN-IB6Y, For HSTNN-I33C-4, For HSTNN-I33C-5, For 800231-141
Product colorBlack
Product typeBattery
Power
Battery type6 Cell Lithium-Ion
Battery voltage rating11.4 V
Battery capacity4,035 mAh
Size & build
Product weight8 oz
Compatibility
Compatible withFor HP EliteBook
More details
Team affiliation1 Piece
Main functionUL Certificated

Questions about this item

Will this 11.4V 46.5Wh battery fit alongside the original AC adapter I kept from my EliteBook 840 G3?

Yes, the battery matches the original 11.4V specification and connects to the same internal connector used by HP EliteBook 840 G3 and G4 models, so your existing AC adapter will charge it normally.

How can I verify the 6-cell lithium-ion pack is recognised correctly after installation?

After fitting the battery, power on the laptop and open the BIOS or HP Support Assistant; the system should report an 11.4V, 46.5Wh pack with a 4035 mAh capacity and show a charging status when the adapter is attached.

Does the package include only the battery or are screws and tools supplied as well?

The box contains one 6-cell lithium-ion battery weighing 8oz; mounting screws and any opening tools are not included and must be sourced separately if your EliteBook chassis requires them.

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