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Black rectangular lithium-ion laptop battery with label showing 41Wh 11.25V

Beisite

Beisite G91J0 41Wh 11.25V laptop battery 31CP5/65/70

SKU CH-S8DH-BKCFH

Lithium-ion 41Wh 11.25V replacement battery for Latitude 3320, 3420, 3520 and Inspiron 15 3511, 3515, 3520, 5410 2-in-1 models

  • Battery typeLithium-Ion
  • Battery voltage rating11.25 V
  • Battery capacity41 Wh
  • Product colorBlack
  • Product typeBattery
  • Compatible withLatitude 3320 3420 3520 15 3515 3511 3520 5410 2 in 1 Series
  • 41Wh lithium-ion cell delivers extended runtime
  • 25V output matches original Dell specifications
  • Replaces part numbers G91J0, MGCM5, 31CP5/65/70
  • Fits Latitude 3320, 3420, 3520 and Inspiron 15 series
  • Brand new condition with 12-month manufacturer warranty

Beisite G91J0 41Wh replacement battery

This 11.25V lithium-ion pack is built as a direct replacement for Dell Latitude 3320, 3420 and 3520 models plus Inspiron 15 3511, 3515, 3520 and 5410 2-in-1 units. It ships new in black and carries a 12-month warranty. Installers should match the original part number 31CP5/65/70 or G91J0 before fitting.

41Wh capacity for typical office workloads

The 41 watt-hour rating supplies enough energy for a full day of document editing, web browsing and video calls on compatible 13 to 15-inch systems. Runtime drops noticeably under sustained heavy loads such as rendering or gaming, so users needing all-day autonomy without a charger should plan for a midday top-up.

Low heat and silent operation

As a solid-state lithium-ion cell the pack generates minimal heat during normal charging and discharging cycles. No moving parts means completely silent operation. Power draw follows the laptop's own management profile, so the battery does not impose additional thermal load on the chassis.

How it compares

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

Price $48.99
Pricier than about 81% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameG91J0
Model nameG91J0
Part number31CP5/65/70
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating11.25 V
Battery capacity41 Wh
Compatibility
Compatible withLatitude 3320 3420 3520 15 3515 3511 3520 5410 2 in 1 Series

Questions about this item

Will the 11.25V 41Wh G91J0 battery run safely in a Latitude 3520 that currently uses a 31CP5/65/70 pack?

Yes, the G91J0 matches the 11.25V voltage and 41Wh capacity of the original 31CP5/65/70 part, so it will power the Latitude 3520 without electrical mismatch.

How can I confirm the new G91J0 battery is charging correctly after installation?

The laptop battery indicator should show a rising charge percentage and the OS power meter will report the 41Wh design capacity once the first full charge cycle completes.

Does the box include any screws or tools for fitting the G91J0 into an Inspiron 15 3511?

Only the battery itself is supplied; any case screws or opening tools required for the Inspiron 15 3511 must be sourced separately.

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