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Black rectangular lithium-polymer laptop battery with label showing 11.4V 3400mAh

Dr. Battery

Dr. Battery MPL05308P-27 11.4V 3400mAh laptop battery

SKU CH-NVXB-D9F99

Replacement lithium-polymer battery rated 11.4V and 3400mAh for numerous Dell Inspiron and Vostro laptops

  • Battery typeLithium Polymer
  • Battery voltage rating11.4 V
  • Battery capacity3,400 mAh
  • Product colorBlack
  • Product typeBattery
  • Compatible withDell Inspiron 13 5368 / 13 5378 / 13 5379 2-in-1 / 13 7368 /
  • Compatible with many Dell Inspiron and Vostro models
  • 4V 3400mAh lithium polymer cell delivers reliable runtime
  • Built-in smart chip enables quicker charging and longer discharge
  • Protection against short circuit overheat and overload included
  • Dr. Battery brand established in 2006 with one-year warranty

Dr. Battery MPL05308P-27 replacement battery

This Dr. Battery MPL05308P-27 is a new lithium-polymer laptop battery rated at 11.4V and 3400 mAh. It is built to replace the original power pack in a wide range of Dell Inspiron and Vostro models listed in the compatibility data. The cell chemistry and voltage match the OEM specification so the notebook recognises the pack without firmware issues. Buyers who need a higher capacity or a different voltage should look elsewhere.

Practical limits of the lithium-polymer pack

The battery delivers 11.4V nominal voltage and 3400 mAh capacity, which defines the energy available between charges. Lithium-polymer cells gradually lose capacity over time and are sensitive to deep discharge, so the useful runtime will shorten after several hundred cycles. The pack does not support fast-charging protocols beyond the laptop's standard charger, and it cannot be used in devices that require a different voltage or form factor.

Installation notes and common pitfalls

Replacement typically involves removing the bottom case screws, disconnecting the old pack, and connecting the new one using the original cable. The connector must align exactly; forcing it can damage the motherboard header. A common mistake is ordering without verifying the original battery part number such as 9W9MX or CYMGM against the compatibility list. After fitting, a full charge and discharge cycle helps the firmware recalibrate the fuel gauge.

How it compares

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

Price $41.99
Pricier than about 73% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameDr. Battery
Model nameMPL05308P-27
Product colorBlack
Product typeBattery
Power
Battery typeLithium Polymer
Battery voltage rating11.4 V
Battery capacity3,400 mAh
Compatibility
Compatible withDell Inspiron 13 5368 / 13 5378 / 13 5379 2-in-1 / 13 7368 / 14 7460 / 15 (7570) / 15 5538 / 15 5565 / 15 5567 / 15 5568 / 15 5570 / 15 5578 2-in-1 / 15 5579 2-in-1 / 15 7560 / 15 7569 / 15 7570 / 15 7579 / 17 5765 / 17 5767 / 17 5770
Dell Latitude 13 3379 / 3180 / 3189 2-in-1 / 3480 / 3488
Dell Vostro 14 5468
Original Battery Part Number:
0FW8KR / 0WDX0R / 0Y3F7Y / 1VX1H / 3CRH3 / 9W9MX / / / / CYMGM / FC92N / FW8KR / P26T / P26T001 / P26T002 / P26T003 / P26T004 / P32E001 / P32E002 / P58F / P58F001 / P61F / P62F / P62F001 / P66F001 / P69G / P69G001

Questions about this item

Should I choose the 3400 mAh or the 3500 mAh capacity listed for this battery?

The manufacturer highlights show 3500 mAh and 42 Wh, while the specifications list 3400 mAh; both refer to the same cell and either figure represents the rated capacity.

What does the 11.4 V rating mean once the battery is installed in my laptop?

The 11.4 V output matches the voltage required by the compatible Dell models, so the system will recognise the battery and charge it normally.

Does this battery use a proprietary Dell connector or a standard interface?

It is designed as a direct replacement for the original Dell batteries listed, so it uses the same proprietary connector that fits the supported Inspiron and Vostro models.

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