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Black rectangular laptop battery with smooth finish

POWER-FENG

POWER-FENG 50Wh 11.1V Li-polymer battery CM03XL for HP EliteBook 745 840 845 G1

SKU CH-M3Z0-PT3EY

A 50Wh 11.1V lithium-polymer replacement battery compatible with multiple HP EliteBook and ZBook models

  • TypeBattery
  • Battery TypeLaptop Batteries
  • 50 Wh capacity delivers extended runtime
  • 1 V Li-polymer chemistry provides stable power
  • Replaces CM03XL CO06XL and HSTNN part numbers
  • Compatible with EliteBook 740 745 750 755 840 845 850 855 G1 G2
  • Fits ZBook 14 14 G2 and 15u models

Compatible HP EliteBook & ZBook models

This replacement battery fits a wide range of HP EliteBook 740, 745, 750, 755, 840, 845, 850 and 855 G1 and G2 models. It also supports ZBook 14, ZBook 14 G2 and ZBook 15u mobile workstations. It replaces original part numbers CM03XL, CO06XL, HSTNN-DB4Q, HSTNN-DB4R and HSTNN-IB4R. Buyers needing a different voltage or form factor should look elsewhere.

50 Wh Li-polymer capacity and runtime

The 50 Wh lithium-polymer pack delivers 4500 mAh at 11.1 V for consistent energy delivery during extended work sessions. Li-polymer chemistry maintains stable output under sustained load rather than fading quickly after a short burst. It is designed as a direct swap for the original internal battery. Users who require a higher capacity pack for longer unplugged time will need a different solution.

Thermal behaviour and power draw

Lithium-polymer construction runs cooler than older chemistries during normal charge and discharge cycles. The battery operates silently with no moving parts and draws only the power required by the laptop. It integrates with the notebook’s existing thermal management system. Buyers expecting active cooling or external fan headers will not find them here.

Highlights

  • 50 Wh capacity delivers extended runtime
  • 1 V Li-polymer chemistry provides stable power
  • Replaces CM03XL CO06XL and HSTNN part numbers
  • Compatible with EliteBook 740 745 750 755 840 845 850 855 G1 G2
  • Fits ZBook 14 14 G2 and 15u models

Specifications

TypeBattery
Battery TypeLaptop Batteries

Questions about this item

How much heat does the 11.1V 50Wh Li-polymer battery generate during all-day use?

The 11.1V 50Wh Li-polymer battery produces minimal heat during normal operation; it has no active cooling and relies on the laptop chassis for passive dissipation.

Which part numbers must my EliteBook already use for this CM03XL replacement to fit?

This battery replaces part numbers CM03XL, CO06XL, HSTNN-DB4Q, HSTNN-DB4R and HSTNN-IB4R; check the label on your current pack before ordering.

Will the 50Wh CM03XL work in an older EliteBook 840 G1 that originally shipped with a smaller pack?

Yes, the 50Wh CM03XL is listed for EliteBook 840 G1 and G2 models and matches the 11.1V voltage requirement for those systems.

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