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Rectangular black lithium polymer battery pack 9.6 by 3 by 0.55 inches

NShi

NShi 91Wh 11.4V 6-Cell Lithium Polymer Laptop Battery for Dell Precision 15 7510 7520 17 7710 7720

SKU CH-YB8W-DSFDA

91Wh 11.4V 6-cell lithium-polymer replacement battery fits Dell Precision 15 7510 7520 and 17 7710 7720 series

  • Battery TypeLithium Polymer
  • 91 Wh capacity supports longer work sessions away from power
  • 4 V 6-cell lithium-polymer design matches original Dell specifications
  • Compatible with Precision 15 7510, 7520, 17 7710 and 7720 series
  • Rated for 300 to 500 charge cycles for extended service life
  • Includes screwdrivers for straightforward self-installation

Compatible Dell Precision Models

This 91Wh lithium polymer battery replaces the original MFKVP pack in Dell Precision 15 7510, 7520, 17 7710 and 7720 series notebooks. It operates at 11.4V across 6 cells and is supplied new.

Included Installation Tools

The package includes a set of screwdrivers so the battery can be fitted without sourcing separate tools. This reduces the time needed for a swap and avoids the risk of using ill-fitting drivers.

Capacity and Cycle Life

Rated at 91Wh, the pack delivers a full day of typical mobile workloads before needing a recharge. The manufacturer rates the chemistry for roughly 300 to 500 full charge cycles, after which capacity will gradually decline.

Highlights

  • 91 Wh capacity supports longer work sessions away from power
  • 4 V 6-cell lithium-polymer design matches original Dell specifications
  • Compatible with Precision 15 7510, 7520, 17 7710 and 7720 series
  • Rated for 300 to 500 charge cycles for extended service life
  • Includes screwdrivers for straightforward self-installation

Specifications

Battery TypeLithium Polymer

Questions about this item

How many charge cycles can the 91Wh 6-cell lithium polymer battery deliver before it needs replacing?

The battery is rated for about 300 to 500 discharge cycles before replacement is recommended.

What is the first limit reached during sustained use — capacity or voltage drop?

Capacity depletion after 300 to 500 cycles is the primary limit; voltage remains at 11.4V throughout the rated life.

Does the 11.4V 91Wh pack run hot or draw extra power when the laptop is on all day?

The pack includes short-circuit, over-voltage, over-current and discharge protection to keep heat and power draw stable during continuous operation.

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