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Rectangular black laptop battery with four cells and label

ALSEYE

ALSEYE 2 in 1 Accessory 4 Cells 2200mAh 14.8V 33Wh

SKU CH-9DK4-X5E07

Four-cell lithium-ion replacement battery rated 33 Wh, 2200 mAh at 14.8 V for select HP Envy and ProBook models

  • Restores laptop mobility with a 4-cell 2200 mAh Li-ion pack
  • Delivers 33 Wh at 14.8 V for extended unplugged use
  • Built with grade-A cells rated for up to 500 charge cycles
  • Protected against short-circuit, overheat and overload conditions
  • Fits HP Envy 14/15/17 and ProBook 450 G2/G3 models

Replacement Battery for HP Envy and ProBook

This 4-cell lithium-ion pack restores mobility to compatible HP Envy 14, 15 and 17 models as well as ProBook 450 G2 and G3 units. It is built for owners whose original battery no longer holds a useful charge.

Four-Cell Layout with OEM-Matched Connectors

The brick uses the same physical footprint and connector arrangement as the factory 756743-001 and 756744-001 units so it seats without adapters or case modifications. Grade-A cells and a reinforced circuit board keep the assembly rigid during daily insertion and removal.

Rated 33 Wh at 14.8 V with Integrated Protection

The pack delivers 2200 mAh and includes short-circuit, overheat and overload safeguards that operate transparently during normal charging and discharge. Cells are rated for up to 500 cycles while maintaining stable voltage under typical workloads.

Highlights

  • Restores laptop mobility with a 4-cell 2200 mAh Li-ion pack
  • Delivers 33 Wh at 14.8 V for extended unplugged use
  • Built with grade-A cells rated for up to 500 charge cycles
  • Protected against short-circuit, overheat and overload conditions
  • Fits HP Envy 14/15/17 and ProBook 450 G2/G3 models

Specifications

No published specifications for this item yet.

Questions about this item

What voltage and capacity does the 4-cell 2200mAh battery deliver?

The pack is rated at 14.8 V, 2200 mAh and 33 Wh, matching the OEM specification for the listed HP part numbers.

Which HP laptop chassis does this battery physically fit?

It replaces HP part numbers 756743-001, 756744-001 and 756478-851/421/422, used in Envy 14, 15, 17 and ProBook 450 G2/G3 models.

How is the battery installed and what step do people often miss?

Power off the laptop, remove the bottom case screws, disconnect the old pack, connect the new one, then re-secure the case; the step often missed is reconnecting the battery cable before closing the chassis.

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