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Black rectangular lithium-polymer laptop battery with two small screwdrivers

Astro Gaming

Astro Gaming CS03XL 2 in 1 accessory

SKU CH-E3GV-KRVM9

A 48 Wh lithium-polymer replacement battery for HP EliteBook and ZBook 15u models, supplied with two screwdrivers

  • 48 Wh capacity powers extended work sessions
  • 4 V Li-polymer chemistry matches original HP specification
  • Certified to CE FCC ROHS UL standards for safe operation
  • Compatible with EliteBook 745 755 840 850 G3 G4 and ZBook 15u G3 G4
  • Includes two screwdrivers and manual for straightforward self-installation

Replacement Battery for HP EliteBook and ZBook

The CS03XL is a 48 Wh lithium-polymer battery built to replace the original pack in HP EliteBook 745 G3, G4, 755 G3, G4, 840 G3, G4, 850 G3 and ZBook 15u G3, G4 models. It ships with two screwdrivers so the swap can be done without extra tools.

Capacity and Headroom

Rated at 11.4 V and 48 Wh across four cells, the pack delivers the same energy budget as the factory unit for everyday office workloads. Runtime will fall short for users who need all-day mobility on a single charge or run sustained heavy compute tasks.

Thermals, Noise and Power Draw

The battery operates silently and adds no active cooling requirement to the laptop. Normal use sees only the passive warmth typical of Li-polymer cells during charge and discharge cycles.

How it compares

Measured against everything we stock in 2-in-1 Device Accessories, at today’s prices. Recalculated every night.

Price $38.99
Cheaper than about 84% of the 7,473 comparable items (median $56.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Will this 11.4 V 48 Wh Li-polymer battery fit my EliteBook 840 G3 alongside the original charging circuit?

Yes, it replaces part numbers CS03XL, HSTNN-IB6Y and 800513-001 on EliteBook 840 G3 and G4 models without circuit changes.

How can I confirm the battery is holding a proper charge after installation?

The pack is rated for up to 1000 recharge cycles and meets CE, FCC, ROHS and UL standards, so the OS should report design capacity of 48 Wh when fully charged.

Does the package include the tools needed to swap the battery on an EliteBook 755 G4?

The box contains the CS03XL battery, two screwdrivers and a user manual; no extra tools are required for the listed HP models.

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