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Black rectangular laptop battery with smooth finish and label showing 51Wh 11.4V

POWER-FENG

POWER-FENG 51Wh 266J9 laptop battery for Dell Inspiron G3 3500 3590 3790 G5 5500

SKU CH-D98E-AD6F3

51 Wh lithium-polymer replacement battery at 11.4 V for Dell Inspiron G3 3500 3590 3700 3779 3790 and G5 5500 models

  • TypeBattery
  • Battery TypeLaptop Batteries
  • 51 Wh capacity powers extended work sessions
  • 4 V lithium-polymer cell delivers stable output
  • Replaces Dell part 266J9 for direct fit
  • Compatible with Inspiron G3 3500 3590 3700 3779 3790
  • Compatible with G5 5500 SE 5505 and P89F series

Compatible Dell models

This replacement battery fits Dell Inspiron G3 3500, 3590, 3700, 3779 and 3790 laptops. It also supports G5 5500 and SE 5505 units. The pack replaces Dell part number 266J9 and P89F variants. Buyers with other Dell series or non-listed G3 and G5 configurations cannot use this unit.

Capacity and runtime

The lithium-polymer cell delivers 51 Wh at 11.4 V, rated at 4255 mAh. It restores factory runtime for daily office work, web browsing and video playback. Heavy gaming or sustained high-load tasks will drain the pack faster than light use. The battery cannot extend runtime beyond the original design specification.

Included hardware

The package contains only the battery module itself. No tools, screws, installation guides or diagnostic software are supplied. Installers must reuse existing fixings and follow the laptop service manual. Professional fitting is recommended if internal disassembly is unfamiliar.

Highlights

  • 51 Wh capacity powers extended work sessions
  • 4 V lithium-polymer cell delivers stable output
  • Replaces Dell part 266J9 for direct fit
  • Compatible with Inspiron G3 3500 3590 3700 3779 3790
  • Compatible with G5 5500 SE 5505 and P89F series

Specifications

TypeBattery
Battery TypeLaptop Batteries

Questions about this item

Will the 11.4 V 51 Wh battery fit alongside the original charger and motherboard in a Dell Inspiron G3 3590?

The battery matches the 266J9 part number used in the G3 3590, so it connects to the same motherboard header and works with the existing charger without modification.

How can I verify the 4255 mAh capacity is recognised correctly after installing the battery in a G5 5500?

In Windows, open the battery report or BIOS; the design capacity should read 51 Wh or 4255 mAh at 11.4 V, confirming the cell is detected properly.

Does the package include the 266J9 battery only, or are installation tools and screws supplied for a G3 3700?

The box contains the black Li-polymer 266J9 battery; screws and opening tools are not included and must be sourced separately.

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