266J9 M4GWP Battery for Dell G3 15 3500 3590 G5 15 5500 5505 — 11.4V 51Wh

Product Overview

The 266J9 is a high-performance 51Wh Li-ion replacement battery designed for Dell G3 15 (3500/3590), G5 15 (5500/5505), and Inspiron 14 5490 series laptops. It replaces original part numbers including 266J9, M4GWP, and PN1VN with a precise factory fit. Built with Grade-A cells to restore dependable mobile runtime and power stability for gaming and daily productivity. Ships 100% brand new with a 1-year warranty.

Technical Specifications

Standard Model	266J9 / M4GWP / PN1VN
Capacity	51Wh / 4473mAh
Voltage	11.4V
Battery Type	Li-ion Polymer
Condition	100% Brand New Replacement
Warranty	1 Year

Replace Part Numbers

• 266J9
• M4GWP
• PN1VN
• 0M4GWP
• 0PN1VN

Compatible Laptop Models

• Dell G3 15 3590 Series
• Dell G3 15 3500 Series
• Dell G5 15 5500 Series
• Dell G5 15 5505 (P89F)
• Dell Inspiron 14 5490 Series

FAQ

Q: Does my laptop use the 51Wh (266J9) or the 68Wh (MV07R) version?

A: These series can ship with either battery size. The 51Wh (266J9) is a 3-cell battery, while the 68Wh is a 4-cell pack. Please verify the part number on your original battery before purchase.

Q: Why is it important to match the voltage?

A: Dell systems are sensitive to voltage regulation. Our 266J9 is matched to original 11.4V specifications to ensure proper BMS communication and prevent "Battery Not Recognized" errors.