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Rectangular black lithium-ion laptop battery, 42Wh 11.4V

Beisite

Beisite 42Wh 11.4V laptop battery for Chromebook 3100 3400 5488 5493 5593

SKU CH-NMD7-HYZT2

A new 42 Wh lithium-ion battery at 11.4 V replaces part numbers 31CP5/57/80, 7MT0R and 16DPH for Chromebook 3100, 3400, 5488, 5493, 5593 and Venue 7 3740 and 8 3840 models

  • Battery typeLithium-Ion
  • Battery voltage rating11.4 V
  • Battery capacity42 Wh
  • Product colorBlack
  • Product typeBattery
  • Compatible withFor Chromebook 3400 5488 5493 5593 Series
  • Replaces multiple Dell part numbers including 31CP5/57/80
  • 42Wh lithium-ion capacity powers compatible Chromebooks and Venue tablets
  • 4V output matches original battery specifications exactly
  • Fits Chromebook 3100 3400 5488 5493 5593 series devices
  • Supports Venue 7 3740 and Venue 8 3840 tablet models

42Wh replacement battery for Chromebook

This lithium-ion pack supplies 11.4V and 42Wh of energy for Chromebook 3100, 3400, 5488, 5493 and 5593 series laptops. It also fits Venue 7 3740 and Venue 8 3840 tablets. The black cell replaces part numbers JPFMR, 7MT0R, 16DPH and 31CP5/57/80.

Steady discharge over a full workday

The chemistry delivers consistent voltage through extended sessions rather than a brief peak, so classroom or office tasks run without sudden drops. Capacity is rated for the stated watt-hours under normal load conditions.

Direct-fit design with 12-month coverage

The unit matches the original form factor and connector layout, allowing a straight swap without adapters or case modifications. A 12-month warranty backs the replacement against early capacity loss.

How it compares

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

Price $30.99
Typical for this category: the median of 27,790 items is $30.99.

Specifications

Product
Brand nameJPFMR
Model nameJPFMR
Part number31CP5/57/80
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating11.4 V
Battery capacity42 Wh
Compatibility
Compatible withFor Chromebook 3400 5488 5493 5593 Series

Questions about this item

Does the 11.4 V 42 Wh lithium-ion cell run hot or draw extra power during all-day use?

The replacement battery matches the original 11.4 V 42 Wh specification, so thermal output and power draw remain identical to the factory pack under normal load.

What must I already own for the 31CP5/57/80 pack to work?

You need a compatible Chromebook 3100, 3400, 5488, 5493 or 5593 series laptop, or a Venue 7 3740 or Venue 8 3840 tablet, with the original battery removed.

Will the 42 Wh unit fit alongside the original charging circuit in my older Chromebook 3100?

Yes, the pack replaces part numbers JPFMR, 7MT0R, 16DPH and 31CP5/57/80, so it connects directly to the existing charging circuitry in listed models.

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