We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black rectangular lithium-polymer laptop battery with screwdrivers

TAURKENAM

TAURKENAM CS03XL 48Wh 11.4V 3-cell laptop battery

SKU CH-KY40-BB749

A 48Wh 11.4V 3-cell lithium-polymer replacement battery for HP EliteBook 840, 850, 745, 755 G3-G4 and ZBook 15u G3-G4 models

  • Battery TypeLithium-Ion
  • 48Wh capacity powers HP EliteBook and ZBook models
  • 4V lithium-polymer chemistry delivers stable voltage output
  • Three-cell design keeps weight low for mobile use
  • Grade A cells tested for up to 500 recharge cycles
  • Free screwdrivers included for straightforward self-installation

Compatible HP EliteBook and ZBook models

This 48Wh lithium-polymer battery replaces the original CS03XL unit in HP EliteBook 840 G3, G4, 850 G3, G4, 745 G3, G4, 755 G3, G4 and ZBook 15u G3, G4 notebooks. It matches the 11.4V voltage and three-cell layout specified by the manufacturer for those series. The pack is new and ships with a screwdriver set for immediate installation.

Installation requirements and freed-up resources

The battery fits the existing compartment without adapters and connects to the same motherboard header used by part numbers such as 800513-001, 854047-2C1 and HSTNN-DB6U. Grade A cells and built-in circuit protection deliver stable power while freeing the user from a degraded pack that no longer holds charge. No extra cables or firmware updates are needed.

Upgrade context and when the swap makes sense

This unit replaces any worn or swollen CS03XL, TA03XL, TA03051XL or CS03046XL battery that has dropped below useful runtime. The jump is worth it when the original pack delivers less than a few hours of light use or triggers replacement warnings. It is not for owners of newer EliteBook generations that use a different part number or voltage.

Highlights

  • 48Wh capacity powers HP EliteBook and ZBook models
  • 4V lithium-polymer chemistry delivers stable voltage output
  • Three-cell design keeps weight low for mobile use
  • Grade A cells tested for up to 500 recharge cycles
  • Free screwdrivers included for straightforward self-installation

Specifications

Battery TypeLithium-Ion

Questions about this item

How many recharge cycles does the 48Wh CS03XL battery support before capacity drops?

The battery is rated for up to 500 recharge cycles over its life, using grade A lithium-polymer cells.

Does the CS03XL battery generate noticeable heat or noise during all-day use?

As a passive lithium-polymer pack with built-in circuit protection, it produces no noise and minimal heat under normal operation.

Which HP EliteBook or ZBook models accept the CS03XL battery without modification?

It fits EliteBook 840 G3/G4, 850 G3/G4, 745 G3/G4, 755 G3/G4 and ZBook 15u G3/G4.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.