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Black rectangular lithium polymer laptop battery, new condition

Dr. Battery

Dr. Battery MPL08318P-28 laptop battery 4900 mAh 7.4V

SKU CH-T8B2-A8K91

Replacement lithium-polymer battery delivering 4900 mAh at 7.4 V for HP Pavilion 15-AU series models including HSTNN-UB7B, TPN-Q172, TPN-Q175, 849569-421, 849569-541, 849569-542

  • 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
  • Replaces multiple HP Pavilion 15-AU series models
  • 4900 mAh capacity supports extended runtime
  • 4 V lithium-polymer cells match original voltage
  • Built-in protection against short circuit and overheat
  • Smart chip enables quicker charging and longer discharge

Replacement Battery for HP Pavilion 15-AU Series

This lithium-polymer battery replaces original HP units in compatible Pavilion 15-AU models including the 15-AU150TX and 15-AU160TX variants. It delivers 4900 mAh capacity at 7.4V to restore mobile runtime for users whose original packs no longer hold sufficient charge. The pack suits owners of listed part numbers such as HSTNN-UB7B, 849569-421, 849569-541 and 849569-542 who need a direct swap without adapter changes. Buyers with other laptop families or different voltage requirements cannot use this unit.

Thermals and Power Behaviour

The 38 Wh cell operates at the nominal 7.4V and 7.7V device voltage specified for the target platform, drawing power within the laptop's original charge circuitry limits. A built-in smart control chip manages charge current to reduce heat during replenishment and extends discharge time under normal workloads. Protection circuits guard against short circuit, overheat and overload conditions so the pack remains stable during daily use. No external cooling or special power settings are required beyond the host laptop's standard management.

Build and Connector Details

The black lithium-polymer enclosure matches the form factor expected by the compatible Pavilion chassis, allowing the battery to seat securely in the original bay. Connector pin-out aligns with HP part numbers HSTNN-UB7B, TPN-Q172 and TPN-Q175 so the ribbon engages without forcing or adaptation. A one-year manufacturer warranty covers defects in materials or workmanship. Users whose machines fall outside the listed model range or who need higher capacity than 4900 mAh should verify specifications before ordering.

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-28
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

How do I install the MPL08318P-28 battery in my HP Pavilion 15-AU150TX, and what step is often missed?

Power off the laptop and disconnect the AC adapter. Remove the base cover screws, detach the old battery connector from the motherboard, fit the new 7.4 V 4900 mAh pack, reconnect the cable firmly, then replace the cover and screws before turning on.

What maintenance or replacement will the 4935 mAh lithium polymer pack need later?

The battery is sealed and requires no user maintenance. When runtime falls below useful levels — typically after several hundred charge cycles — replace the whole pack with another compatible 7.4 V unit such as part numbers 849569-421, 849569-541 or 849569-542.

What limit appears first during sustained heavy use of this 38 Wh battery?

The 4900 mAh capacity depletes before the 7.4 V output voltage sags, so runtime ends first. The built-in smart chip provides short-circuit, overheat and overload protection, but does not extend the fundamental energy capacity.

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