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Rectangular black lithium polymer battery with screw holes and connector ribbon

NShi

NShi TA03XL laptop battery 4245mAh 11.55V 51Wh HP EliteBook 755 840 848 850 G4 ZBook 14 15 G4 854108

SKU CH-GT34-9KHK5

Replacement lithium polymer battery with 4245 mAh capacity and 51 Wh energy for compatible HP EliteBook and ZBook models

  • Battery TypeLithium Polymer
  • 4245 mAh capacity powers long work sessions
  • 51 Wh energy rating supports demanding tasks
  • 55 V output matches original HP specification
  • Grade A lithium polymer cells deliver reliable cycle life
  • Built-in microchip protects against over-charge and over-heat

Genuine replacement battery for HP EliteBook

This 51Wh lithium-ion polymer battery replaces the original TA03XL unit in compatible HP EliteBook 755, 840, 848, 850 G4 and ZBook 14u, 15u G4 laptops. It delivers 4245mAh at 11.55V to restore factory runtime. A built-in microchip protects against over-charging, over-discharging and over-heating. The pack ships new with a basic tool kit for installation.

Suitable for owners of the listed G4 models

Buyers who cannot verify their original battery part number against the compatibility list should not purchase this unit. It is not designed for earlier or later EliteBook and ZBook generations, nor for any non-HP chassis. Professional fitting is recommended because no user manual is included in the package.

Capacity and voltage that define the fit

The 4245mAh, 11.55V, 51Wh specification determines whether this battery matches the power envelope of the target laptop. Confirm the original battery label shows TA03XL or 854108-850 before ordering.

Highlights

  • 4245 mAh capacity powers long work sessions
  • 51 Wh energy rating supports demanding tasks
  • 55 V output matches original HP specification
  • Grade A lithium polymer cells deliver reliable cycle life
  • Built-in microchip protects against over-charge and over-heat

Specifications

Battery TypeLithium Polymer

Questions about this item

Does the package include everything I need to fit the TA03XL battery into my EliteBook 840 G4?

The box contains one TA03XL battery rated at 4245 mAh and 51 Wh plus a tool kit for the swap.

My old battery shows part number 854108; is this the correct replacement?

Yes — the TA03XL is listed for HP EliteBook 755, 840, 848, 850 G4 and ZBook 14u, 15u G4 carrying the 854108 part number.

What does the 11.55 V, 51 Wh rating mean for daily runtime on a ZBook 15u G4?

The 11.55 V, 51 Wh lithium-polymer pack matches the original specification, so expect the same run time you had with a healthy factory battery.

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