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Black rectangular 4-cell lithium-ion laptop battery, 10.8V 55Wh

Damaite

Damaite CA06 4-cell 55Wh 10.8V laptop battery for HP ProBook 640 645 650 655 G1

SKU CH-T9KP-DDZAN

Replacement 4-cell 55 Wh 10.8 V lithium-ion battery compatible with HP ProBook 640, 645, 650 and 655 G1 models

  • Battery type4 Cell Lithium-Ion
  • Battery voltage rating10.8 V
  • Battery capacity55 Wh
  • Product colorBlack
  • Product typeBattery
  • Reliable power from a 55 Wh lithium-ion cell
  • Runs at 10.8 V for stable laptop operation
  • Four-cell design balances capacity and weight
  • Direct replacement for CA06, CA06XL and CA09 part numbers
  • Fits ProBook 640, 645, 650 and 655 G1 models

Compatible HP ProBook models

This replacement battery fits the HP ProBook 640, 645, 650 and 655 G1 series. It matches original part numbers CA06, CA06XL, CA09, 718677-421, 718678-421, 718755-001, 718756-001, HSTNN-DB4Y, HSTNN-LB4X, HSTNN-LB4Y, HSTNN-LB4Z and HSTNN-LP4Z. The four-cell lithium-ion pack delivers 55 Wh at 10.8 V. Condition is new.

Who this suits and who should look elsewhere

Owners of the listed ProBook G1 models needing a direct 55 Wh replacement will find the correct voltage and connector. Buyers with other HP series, later G2 or newer chassis, or machines requiring a higher-capacity pack should look elsewhere. The battery is not compatible with EliteBook 820 despite the supplier title reference.

Deciding specification: 55 Wh capacity

The 55 Wh rating determines runtime and physical fit for the target ProBook G1 models. Verify your original battery shows 55 Wh or the compatible part numbers above before ordering. A different watt-hour value indicates a different pack that will not match the chassis or power profile.

How it compares

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

Price $26.99
Cheaper than about 58% of the 27,790 comparable items (median $30.99).

Specifications

Product
Model nameEliteBook 820, ProBook CA06 640 645 650 655 G1
Product colorBlack
Product typeBattery
Power
Battery type4 Cell Lithium-Ion
Battery voltage rating10.8 V
Battery capacity55 Wh

Questions about this item

Will this 55 Wh 4-cell lithium-ion pack fit my ProBook 640 G1 without any other hardware changes?

The pack replaces part numbers CA06, CA06XL, CA09, HSTNN-DB4Y, HSTNN-LB4X, HSTNN-LB4Y, HSTNN-LB4Z, HSTNN-LP4Z, 718677-421, 718678-421, 718755-001 and 718756-001, so it drops straight into the existing battery bay of a ProBook 640 G1.

Can I keep using my original 10.8 V charger with this replacement battery?

Yes — the battery is rated at 10.8 V, matching the voltage your ProBook 640, 645, 650 or 655 G1 charger already supplies.

How can I verify the battery is delivering the rated 55 Wh after I install it?

In Windows, run "powercfg /batteryreport" and check the Design Capacity field; it should read 55 000 mWh for a healthy new pack.

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