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Rectangular black lithium-polymer laptop battery, smooth matte finish

Dr. Battery

Dr. Battery MPL08318P-21 laptop battery 4900 mAh 7.4V

SKU CH-WRSX-DZM28

Replacement lithium-polymer battery rated 4900 mAh at 7.4 V for numerous HP Pavilion 15-AU series laptops

  • Battery typeLithium Polymer
  • Battery voltage rating7.4 V
  • Battery capacity4,900 mAh
  • Product colorBlack
  • Product typeBattery
  • Compatible withHP Pavilion 15-AU000 / 15-AU103NG / 15-AU105NG / 15-AU106NG
  • Reliable runtime from a 4900 mAh lithium-polymer cell
  • Matches HP Pavilion 15-AU series models including 15-AU144TX and 15-AU149TX
  • Built-in smart chip protects against short circuit, overheat and overload
  • Operates at 7.4 V for direct compatibility with original battery specifications
  • New condition unit manufactured under Dr. Battery quality control since 2006

Dr. Battery MPL08318P-21 replacement battery

This lithium-polymer pack replaces the original battery in HP Pavilion 15-AU series laptops including the 15-AU144TX, 15-AU145TX and 15-AU146TX models. It is a new unit built to OEM specifications with a smart control chip that manages charging and protects against short circuits, overheating and overload. The black casing matches the original form factor for direct installation.

4900 mAh capacity at 7.4 V delivers 38 Wh of energy

The 4900 mAh rating provides a practical runtime for everyday office tasks, web browsing and media playback on compatible Pavilion 15-AU notebooks. Under heavier loads such as sustained gaming or video rendering the pack will deplete more quickly and require a recharge. It is not suited for users who need all-day operation away from a power outlet without carrying a spare.

Built-in protection chip and direct-fit connector

The integrated smart chip enables quicker charging, lower power consumption and longer discharge cycles while maintaining safety through short-circuit, overheat and overload safeguards. The connector aligns with the original battery socket in the listed HP models so no adapter or modification is needed. Buyers who need a higher-capacity pack or a different voltage should look elsewhere.

How it compares

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

Price $39.99
Pricier than about 71% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameDr. Battery
Model nameMPL08318P-21
Product colorBlack
Product typeBattery
Power
Battery typeLithium Polymer
Battery voltage rating7.4 V
Battery capacity4,900 mAh
Compatibility
Compatible withHP Pavilion 15-AU000 / 15-AU103NG / 15-AU105NG / 15-AU106NG / 15-AU107NG / 15-AU108NG / 15-AU109NG / 15-AU111NG / 15-AU123CL / 15-AU134TX / 15-AU136TX / 15-AU137TX / 15-AU144TX / 15-AU145TX / 15-AU146TX / 15-AU147TX / 15-AU148TX / 15-AU149TX / 15-AU150TX / 15-AU160TX / 15-AU163TX / 15-AU164TX / 15-AU165TX / 15-AU171TX / 15-AU178TX / 15-AU502TX / 15-AU620TX / 15-AU624TX / 15-AU626TX / 15-AU628TX / 15-AW001CY / 15-AW002LA / 15-AW003LA / 15-AW004AT / 15-AW006NG / 15-AW053NR
Original Battery Part Number :
849569-421 / 849569-541 / 849569-542 / 849569-543 / 849909-850 / BP02041XL / BP02XL

Questions about this item

Will the 7.4 V MPL08318P-21 fit my HP Pavilion 15-AU144TX without modifying the chassis?

The battery is listed as a direct replacement for the 15-AU144TX and other 15-AU series models; it uses the original form factor so no chassis changes are needed.

How can I confirm the 4900 mAh lithium-polymer pack is charging correctly after installation?

The built-in smart control chip communicates with the laptop BIOS; verify the OS reports a 38 Wh design capacity and that charge percentage increases normally.

Does the box include any tools or screws for the 15-AU137TX swap, or must I supply my own?

Only the battery pack is supplied; no screwdrivers, screws or opening tools are included, so have a small Phillips driver ready.

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