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Black rectangular laptop battery with label showing model CM03XL 11.1V 50Wh

myVolts

myVolts CM03XL laptop battery 11.1V 50Wh 4550mAh

SKU CH-BBS0-5Y5H3 MPN CM03XL

Replacement lithium-ion battery rated 11.1 V and 50 Wh for HP EliteBook 740 745 750 755 840 845 850 855 G1 G2 and ZBook 14 15u G2 models

  • 50 Wh capacity powers compatible HP EliteBook and ZBook models through a full workday
  • 1 V lithium-ion chemistry matches original voltage for stable operation
  • Up to 500 recharge cycles extends usable life across multiple years
  • Built-in circuit protection guards against overcharge, over-discharge and short circuits
  • Replaces a wide range of OEM part numbers including HSTNN-DB4Q, HSTNN-LB4R and CM03XL

Compatible HP EliteBook and ZBook models

This replacement battery fits HP EliteBook 740, 745, 750, 755, 840, 845, 850 and 855 G1 and G2 series laptops. It also suits HP ZBook 14 G2 and 15u G2 mobile workstations including the E7U24AA model.

Li-ion chemistry with built-in protection

The 11.1V 50Wh 4550mAh lithium-ion cell delivers up to 500 recharge cycles over its service life. Integrated circuit protection guards against overcharge, over-discharge and short circuits for stable operation.

Suits owners of G1 and G2 series devices

Buyers with EliteBook G3, G4 or later models need a different part number. Users requiring a higher capacity than 50Wh or a voltage other than 11.1V should look at alternative batteries.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $35.99
Pricier than about 64% of the 27,790 comparable items (median $30.99).

Specifications

No published specifications for this item yet.

Questions about this item

How many recharge cycles does the CM03XL battery support before it needs replacement?

The battery is rated for up to 500 recharge cycles over its lifespan, after which capacity will decline and a replacement will be needed.

What capacity limit will I hit first during a full day of continuous use?

The 50Wh / 4550mAh capacity determines how long the laptop runs on a single charge before you must plug in.

Does the CM03XL run hot or draw extra power when the laptop is on all day?

The battery operates at 11.1V with built-in circuit protection, so it manages heat and power draw within normal Li-ion limits during extended use.

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