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Rectangular black laptop battery with three cells and screwdrivers

kolitt

kolitt CS03XL laptop battery 11.4V 48Wh 3 cells black

SKU CH-6TH2-5G3PQ

11.4 V 48 Wh 3-cell replacement battery for HP EliteBook 840, 850, 745, 755 G3-G4 and ZBook 15u G3-G4, includes screwdrivers

  • Reliable power for daily work with 11.4V 48Wh capacity
  • Fits many HP EliteBook and ZBook models including 840 G3 G4 and 850 G3 G4
  • Built-in circuit protection guards against overcharging and over-discharging
  • Ready to install with two screwdrivers and an instruction manual included
  • Backed by 20 years of specialist battery production experience

CS03XL 48Wh replacement battery

The CS03XL is a new 11.4V laptop battery rated at 48Wh with three cells in a black housing. It replaces the original HP EliteBook 840 G3 battery and matches part numbers including 800513-001 and 854047-2C1. The package includes the battery, two screwdrivers and an instruction manual for owner installation.

Steady output under continuous load

Built-in circuit protection regulates voltage during sustained use, preventing over-charge and over-discharge events that can degrade cells. The low-power design aims to keep discharge curves stable across long work sessions rather than only in short bursts. American-sourced cells are specified to maintain consistent delivery throughout the cycle.

Limited to listed EliteBook and ZBook models

Compatibility is confined to the HP EliteBook 840 G3, G4, 850 G3, G4, 745 G3, G4, 755 G3, G4 and ZBook 15u G3, G4 series. Systems outside this list, or those requiring a different voltage or connector, will not accept this pack. No other laptop families are supported by the provided part-number cross-reference.

Highlights

  • Reliable power for daily work with 11.4V 48Wh capacity
  • Fits many HP EliteBook and ZBook models including 840 G3 G4 and 850 G3 G4
  • Built-in circuit protection guards against overcharging and over-discharging
  • Ready to install with two screwdrivers and an instruction manual included
  • Backed by 20 years of specialist battery production experience

Specifications

No published specifications for this item yet.

Questions about this item

Does the 48 Wh CS03XL battery run hotter or draw more power than the original during all-day use?

The CS03XL matches the original 11.4 V 48 Wh specification and includes built-in circuit protection against overcharging and over-discharging, so thermal behaviour and power draw stay within the same limits as the factory pack.

What tools must I already own to install the CS03XL in my EliteBook?

The package supplies two screwdrivers and an instruction manual, so no extra tools are required for the battery swap.

Will the CS03XL fit my EliteBook 840 G3 if I keep the original bottom cover and screws?

Yes, the CS03XL replaces part numbers such as 800513-001 and HSTNN-DB6U used in the 840 G3, so the existing cover and fasteners work without modification.

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