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Black rectangular 3-cell lithium-ion laptop battery with label showing 11.4V 51WHR 4473mAh

NShi

NShi 266J9 M4GWP laptop battery 11.4V 51WHR 4473mAh 3-cell for Dell G3 3590 G5 5500 Inspiron 5490

SKU CH-FXSZ-AGS5D

Three-cell 11.4 V lithium-ion pack rated 51 Whr and 4473 mAh replaces Dell 266J9, M4GWP and PN1VN batteries in G3 3590, G5 5500 and Inspiron 5490 models

  • Battery type3 Cell Lithium-Ion
  • Battery voltage rating11.4 V
  • Battery capacity4473mah
  • Product colorBlack
  • Product typeBattery
  • Compatible withDell G3 3590, G5 5500, INSPIRON 5490, I5490
  • Direct replacement for Dell G3 3590, G5 5500 and Inspiron 5490
  • 4 V lithium-ion chemistry provides stable power delivery
  • 4473 mAh capacity supports extended mobile use
  • Three-cell design balances runtime with lightweight portability
  • CE, FCC and RoHS certified for electrical safety

Direct replacement for Dell G3 3590 G5 5500

This GreenTech battery replaces OEM part numbers 266J9 M4GWP PN1VN 0M4GWP 0PN1VN. It fits Dell G3 3590 G5 5500 and Inspiron 5490 models. The unit is a 3 cell lithium ion pack rated at 11.4V and 51WHR. It is sold new and carries CE FCC RoHS safety certifications.

Simple swap with built in circuit protection

Installation follows the standard Dell service procedure: remove the base cover, disconnect the old pack, connect the new one and refit the cover. The battery includes circuit protection for stable current and low self discharge. No extra drivers or firmware steps are required. The only common issue is forgetting to disconnect the old pack before fitting the replacement.

4473mAh capacity for typical daily workloads

The 51WHR rating delivers several hours of office browsing or video playback on a full charge. Heavy gaming or sustained CPU loads will drain the pack faster and may require a mains connection for long sessions. It is not suited for users who need all day runtime without access to a charger.

How it compares

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

Price $52.99
Pricier than about 84% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameGreenTech
Model name266J9, M4GWP, PN1VN, 0M4GWP, 0PN1VN
Product colorBlack
Product typeBattery
Power
Battery type3 Cell Lithium-Ion
Battery voltage rating11.4 V
Battery capacity4473mah
Compatibility
Compatible withDell G3 3590, G5 5500, INSPIRON 5490, I5490

Questions about this item

How can I verify the battery is delivering the correct 11.4V and 4473mAh after installation?

The battery management system in Dell G3 3590, G5 5500 and Inspiron 5490 will report the design voltage and capacity in the BIOS or Windows power report; values matching 11.4V and 4473mAh confirm the pack is working as intended.

What comes in the box and do I need any extra tools or cables for the Dell G3 3590 or G5 5500?

The package contains the 3-cell 11.4V 51WHR battery only; no screwdrivers, opening tools or additional cables are included, so have a suitable Phillips driver ready for the bottom-case screws.

The listing shows 51WHR and 53WHR — which capacity should I choose for my Inspiron 5490?

Both figures refer to the same 3-cell 11.4V 4473mAh pack; the 51WHR rating is the nominal value used for Dell G3 3590, G5 5500 and Inspiron 5490 compatibility, so there is no separate version to select.

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