MR90Y 65Wh High Capacity Battery for Dell Inspiron 14 15 17 3000 Series Vostro 2421 — 11.1V

The MR90Y is a high-capacity 11.1V 65Wh (6000mAh) Li-ion replacement battery for Dell Inspiron 14 3000 (3421, 3437), 15 3000 (3521, 3537), 17 3000 (3721, 3737), Latitude 14/15 3000 and Vostro 2421/2521 series. It delivers up to 60% more runtime than standard 40Wh batteries. Built with premium cells and an integrated BMS to manage thermal levels and prevent overcharge, backed by a 1-year warranty. 100% brand new with direct plug-and-play fit.

Product Specifications

Battery Model:	MR90Y
Capacity:	6000mAh / 65Wh (High Capacity)
Voltage:	11.1V
Battery Type:	Li-ion
Color:	Black
Condition:	100% Brand New Replacement
Warranty:	1-Year Warranty

Replace Part Numbers

• MR90Y
• XCMRD
• XRDW2
• YGMTN
• 6KP1N

Compatible Laptop Models

• Dell Inspiron 14 3421, 3437
• Dell Inspiron 15 3521, 3537
• Dell Inspiron 17 3721, 3737
• Dell Inspiron 14R 5421, N5421
• Dell Inspiron 15R 5521, N5521
• Dell Inspiron 17R 5721, N5721
• Dell Latitude 14 3000, 3440
• Dell Latitude 15 3000, 3540
• Dell Vostro 2421, 2521
• Dell Inspiron 14 N3421, 15 N3521

FAQ

Q: Why should I choose the 65Wh MR90Y over the 40Wh XCMRD? A: The 65Wh MR90Y provides approximately 60% longer runtime, making it ideal for travel and long work sessions where outlets are not available. Q: Is this high-capacity battery larger than the original? A: No — it uses higher energy density cells to maintain the standard 6-cell physical size while providing significantly more power, ensuring a perfect flush fit.