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Black rectangular lithium-polymer laptop battery with two small screwdrivers

FOCUSTEC

FOCUSTEC CS03XL 11.4V 48WH 4-cell laptop battery

SKU CH-TPAD-SW9PN

A 48 Wh, 11.4 V lithium-polymer battery with four cells for compatible HP EliteBook and ZBook models

  • Battery TypeLithium-Ion
  • 48 Wh capacity powers EliteBook 840 G3 through G4 and ZBook 15u models
  • Lithium-polymer chemistry delivers 11.4 V stable output with four internal cells
  • UL, CE, FCC and RoHS certifications plus overcharge, overdischarge, over-temperature and short-circuit protection
  • Rated for up to 1000 recharge cycles over the battery life
  • Includes two free screwdrivers for straightforward installation

Replacement battery for HP EliteBook and ZBook 15u

The FOCUSTEC CS03XL is a new lithium-polymer battery rated at 11.4 V and 48 Wh across four cells. It fits HP EliteBook 745 G3 and G4, 755 G3 and G4, 840 G3 and G4, 850 G3, and ZBook 15u G3 and G4 models. The black pack includes two screwdrivers for installation.

Capacity and voltage match the original part

The decisive specification is the 48 Wh capacity at 11.4 V, matching the OEM CS03XL, HSTNN-IB6Y, HSTNN-UB6S and 3ICP6/65/79 part numbers. If your service tag lists any of those codes this battery will fit; if the tag shows a different voltage or watt-hour rating it will not.

Bundled screwdrivers simplify the swap

Two screwdrivers are supplied in the box so you can open the bottom case and secure the battery without sourcing tools separately. The pack also carries UL, CE, FCC and RoHS safety marks plus overcharge, overdischarge, over-temperature and short-circuit protection circuits rated for up to 1000 recharge cycles.

Highlights

  • 48 Wh capacity powers EliteBook 840 G3 through G4 and ZBook 15u models
  • Lithium-polymer chemistry delivers 11.4 V stable output with four internal cells
  • UL, CE, FCC and RoHS certifications plus overcharge, overdischarge, over-temperature and short-circuit protection
  • Rated for up to 1000 recharge cycles over the battery life
  • Includes two free screwdrivers for straightforward installation

Specifications

Battery TypeLithium-Ion

Questions about this item

How long will the 48 Wh capacity actually run my EliteBook 840 G3?

The pack stores 48 Wh at 11.4 V; actual runtime varies with screen brightness, CPU load and connected peripherals.

What connector standard does the CS03XL use to mate with the motherboard?

It uses the same multi-pin HP battery interface found on EliteBook 745 G3/G4, 755 G3/G4, 840 G3/G4, 850 G3 and ZBook 15u G3/G4.

Will this 4-cell pack fit the battery bay without modification?

Yes, it matches the original CS03XL form factor and ships with two screwdrivers for the retention screws.

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