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Rectangular black lithium-polymer laptop battery with three cells and label showing CI03XL 51Wh 11.4V

TAURKENAM

TAURKENAM CI03XL 51Wh 11.4V laptop battery for HP ProBook 640 645 650 655 G2 G3

SKU CH-S1QE-D0MC4

A 51Wh lithium-polymer replacement battery with built-in over-current, over-charge, over-discharge, over-temperature and short-circuit protection for HP ProBook 640, 645, 650 and 655 G2 and G3 models

  • Battery TypeLithium-Ion
  • Reliable power for compatible HP ProBook models with 51Wh capacity and 11.4V output
  • Extended runtime from 3-cell lithium-polymer design rated for up to 500 recharge cycles
  • Built-in safeguards include overcharge, overdischarge, over-temperature and short-circuit protection
  • Broad compatibility covering ProBook 640, 645, 650 and 655 G2 and G3 series
  • Direct replacement for multiple OEM part numbers including CI03XL and HSTNN-UB6Q

Compatible HP ProBook models

This TAURKENAM CI03XL battery replaces the original unit in HP ProBook 640, 645, 650 and 655 G2 and G3 laptops. It delivers 51Wh at 11.4V using a 3-cell Li-Polymer design. The pack matches part numbers CI03, CI03XL, HSTNN-UB6Q, HSTNN-LB6T, HSTNN-PB6K and 801554-001. It suits owners who need a direct replacement for a worn or failed battery.

Installation notes

The battery slots into the standard compartment without tools on most listed models. Ensure the laptop is fully shut down and disconnected from mains power before starting. Common issues include forgetting to reconnect the internal cable firmly or not seating the retention clips, which can prevent the system from recognising the new pack. A brief BIOS update may be required on some G2 units for correct fuel-gauge calibration.

Pre-order checks

Verify the exact part number printed on your existing battery against the compatibility list above. Confirm your laptop model suffix is G2 or G3, as earlier or later generations are not supported. Check that the voltage reads 11.4V and the capacity is rated at 51Wh on the original label. Buyers who need a higher-capacity pack or a different voltage should look elsewhere.

Highlights

  • Reliable power for compatible HP ProBook models with 51Wh capacity and 11.4V output
  • Extended runtime from 3-cell lithium-polymer design rated for up to 500 recharge cycles
  • Built-in safeguards include overcharge, overdischarge, over-temperature and short-circuit protection
  • Broad compatibility covering ProBook 640, 645, 650 and 655 G2 and G3 series
  • Direct replacement for multiple OEM part numbers including CI03XL and HSTNN-UB6Q

Specifications

Battery TypeLithium-Ion

Questions about this item

How can I confirm the TAURKENAM CI03XL 51Wh battery is charging and holding power correctly after installation?

After fitting the 11.4 V 3-cell pack, boot the ProBook and check the battery icon shows charging; run HP Battery Check or the BIOS diagnostic — both should report the design capacity near 51 Wh and zero critical errors.

What comes with the battery and what must I source separately?

The box contains only the 51 Wh Li-Polymer unit; no tools, screws, adhesive strips or AC adapter are included, so have a Phillips screwdriver and any replacement chassis screws ready before starting the swap.

My ProBook 650 G3 shows part number 801554-001 on the old pack — is this CI03XL the right match?

Yes — 801554-001 appears in the compatibility list alongside CI03, CI03XL and the HSTNN-UB6Q/LB6T/PB6K codes, so this 11.4 V 51 Wh battery is the correct replacement for that model.

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