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Black rectangular lithium polymer laptop battery with label showing 14.8V 3900mAh 58Wh

Dr. Battery

Dr. Battery MPL05286P-05 laptop battery 14.8V 3900mAh 58Wh

SKU CH-Z3Q4-RR172

Replacement lithium-polymer battery for Dell Inspiron 15 and 17 models, 14.8V 3900mAh 58Wh

  • Battery typeLithium Polymer
  • Battery voltage rating14.8 V
  • Battery capacity3,900 mAh
  • Product colorBlack
  • Product typeBattery
  • Compatible withDell Inspiron 15(7537) / 15 7000 -7537 / 15 7000(7537) / 15-
  • Replaces many Dell Inspiron 15 and 17 models for a direct fit
  • 58 Wh capacity provides long runtime between charges
  • Lithium-polymer cells keep weight low and shape slim
  • 8 V output matches original Dell specifications
  • Built-in protection chip guards against short circuit, overheat and overload

Replacement Battery for Dell Inspiron 15 and 17

This new lithium polymer battery replaces the original power pack in numerous Dell Inspiron 15 and 17 models. It is intended for owners of compatible 15‑inch and 17‑inch machines who need a fresh 14.8V 3900mAh unit. The black casing matches the factory appearance and fits the existing battery bay without modification.

Voltage and Chemistry Constraints

The cell chemistry is fixed at lithium polymer with a nominal output of 14.8V. This voltage must match the laptop’s original specification; a different voltage will not work. The integrated smart chip manages charging current and provides short‑circuit, overheat and overload protection, but it cannot alter the fundamental electrical interface required by the host device.

Capacity and Runtime Headroom

Rated at 3900mAh and 58Wh, the pack delivers the same energy budget as the original equipment battery. It comfortably powers typical office workloads and media playback for a full session. Runtime diminishes under sustained high‑load tasks such as gaming or video rendering, and the battery will eventually require replacement again as all lithium polymer cells age.

How it compares

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

Price $60.99
Pricier than about 90% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameDr. Battery
Model nameMPL05286P-05
Product colorBlack
Product typeBattery
Power
Battery typeLithium Polymer
Battery voltage rating14.8 V
Battery capacity3,900 mAh

Questions about this item

Which Dr. Battery model fits my Dell Inspiron 15-7537?

The MPL05286P-05 is listed as a direct replacement for the Inspiron 15-7537, 15-7737 and 17-7737 series, matching the original 14.8V 3900mAh specification.

What runtime can I expect from the 58 Wh rating?

At 58 Wh the pack delivers the same energy as the factory battery; actual hours depend on your screen brightness, CPU load and power-profile settings.

Does the 14.8 V output match the Dell 451-BBEO connector?

Yes — the battery supplies 14.8 V through the standard Dell 451-BBEO / 62VNH / F7HVR pin-out used on the listed Inspiron 15 and 17 models.

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