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.