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Rectangular black laptop battery with three cells visible

Total Micro Technologies

Total Micro 3-Cell 42WHr 3950mAh Laptop Battery

SKU CH-2KQ9-0Q1ZA

Three-cell lithium-ion battery rated at 42 Wh and 3950 mAh for compatible HP ProBook and EliteBook models

  • Type3 Cell Lithium-Ion
  • Compatible with HP ProBook 440 G9 and G10
  • Compatible with HP ProBook 445 G9 and G10
  • Compatible with HP ProBook 450 G9 and G10
  • Compatible with HP EliteBook 630 G9 and G10
  • 3-cell lithium-ion design with 42WHr capacity

Compatible HP Models

This Total Micro 3-Cell 42WHr 3950mAh battery replaces the original pack in HP ProBook 440 G9, 440 G10, 445 G9, 445 G10, 450 G9, 450 G10, 455 G9 and 455 G10 notebooks. It also fits Pro mt440 G3, EliteBook 630 G9, 630 G10, 640 G9, 645 G9, 645 G10, 650 G9, 655 G9, 655 G10 and Elite mt645 G7 systems.

Replacement Ready

The unit ships as a direct swap for HP part 75599-005-TM with no extra cables, brackets or software required. Installing it restores mobile power without changing drivers or BIOS settings.

Three-Cell Lithium-Ion Capacity

A 3-Cell Lithium-Ion design rated at 42WHr and 3950mAh sets the runtime ceiling for this pack. Buyers who need longer unplugged time per charge should look for a higher-watt-hour alternative.

Highlights

  • Compatible with HP ProBook 440 G9 and G10
  • Compatible with HP ProBook 445 G9 and G10
  • Compatible with HP ProBook 450 G9 and G10
  • Compatible with HP EliteBook 630 G9 and G10
  • 3-cell lithium-ion design with 42WHr capacity

Specifications

BrandTotal Micro
Type3 Cell Lithium-Ion

Questions about this item

How often will the 3-cell lithium-ion pack need to be replaced?

The 3-cell lithium-ion pack provides 42 WHr and 3950 mAh; typical lithium-ion cells last several hundred full charge cycles before noticeable capacity loss.

What limits runtime first during a full day of work?

The 42 WHr capacity sets the total energy available, so battery life under sustained load is capped by that figure.

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

It fits HP ProBook 440 G9, 445 G9, 450 G9, 455 G9, 630 G9, 640 G9, 645 G9, 650 G9 and 655 G9 models without additional cooling or power draw.

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