---
product_id: 41974977
title: "SLE-TECH 65WH MR90Y Battery Compatible with Dell Inspiron 3521 3721 5521 5721 14-3421 14-3437 14R-5421 14R-5437 17 Latitude14 3000 3540 Series XCMRD PN 0MF69 N121Y G35K4 MK1R0 VR7HM"
brand: "sle-tech"
price: "€ 48.91"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/41974977-sle-tech-65wh-mr90y-battery-compatible-with-dell-inspiron-3521
store_origin: NL
region: Netherlands
---

# 6-cell fast-charge tech 65WH high-capacity power Built-in circuit protection SLE-TECH 65WH MR90Y Battery Compatible with Dell Inspiron 3521 3721 5521 5721 14-3421 14-3437 14R-5421 14R-5437 17 Latitude14 3000 3540 Series XCMRD PN 0MF69 N121Y G35K4 MK1R0 VR7HM

**Brand:** sle-tech
**Price:** € 48.91
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your hustle with confidence—never miss a beat!

## Quick Answers

- **What is this?** SLE-TECH 65WH MR90Y Battery Compatible with Dell Inspiron 3521 3721 5521 5721 14-3421 14-3437 14R-5421 14R-5437 17 Latitude14 3000 3540 Series XCMRD PN 0MF69 N121Y G35K4 MK1R0 VR7HM by sle-tech
- **How much does it cost?** € 48.91 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/41974977-sle-tech-65wh-mr90y-battery-compatible-with-dell-inspiron-3521)

## Best For

- sle-tech enthusiasts

## Why This Product

- Trusted sle-tech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Worry-Free Support:** Backed by CE/FCC/RoHS certifications plus 24/7 email support and a 12-month hassle-free warranty.
- • **Rapid Recharge Ready:** Advanced 6-cell Li-ion design ensures faster charging and longer battery life.
- • **Safety First, Always:** Integrated circuit protection guards against overheating and power surges.
- • **Power Through Your Day:** 65WH capacity delivers extended laptop runtime for uninterrupted productivity.
- • **Seamless Compatibility:** Perfectly engineered for Dell Inspiron & Latitude 3000 series models—plug and play confidence.

## Overview

This 65WH MR90Y Li-ion battery is a premium replacement for select Dell Inspiron and Latitude 3000 series laptops, featuring 6 high-grade cells, 11.1V output, and built-in circuit protection. Certified for safety and reliability, it offers fast charging, extended runtime, and comes with 24/7 support plus a 12-month warranty to keep your device powered and your workflow seamless.

## Description

SLE-TECH 65WH MR90Y Battery Compatible with Dell Inspiron 3521 3721 5521 5721 14-3421 14-3437 14R-5421 14R-5437 17 Latitude14 3000 3540 Series XCMRD PN 0MF69 N121Y G35K4 MK1R0 VR7HM

## Features

- Battery type: Li-ion; Capacity: 65WH; Cells: 6-cell; Voltage: 11.1V.
- Replacement Models: Dell XCMRD MR90Y battery;Dell Inspiron 14 3421 / 14r 5421 / 14r /3437 /5437 /N3421 /N5421 15 3521 / 15r /3537 /5537 /N3521 /N5521 /N5537 / 17 3721 / 17r /5737 /N3721 /N3737 /N5721 /N5737 17r 5721 / 15r 5521 laptop battery
- Compatible Part Numbers 0MF69 312-1390 49VTP 68DTP 6KP1N 8TT5W FW1MN MK1R0 PVJ7J V8VNT X29KD YGMTN 24DRM 312-1392 4DMNG 6HY59 6XH00 9K1VP G019Y MR90Y T1G4M VR7HM XCMRD 312-1387 312-1433 4WY7C 6K73M 8RT13 DJ9W6 G35K4 N121Y V1YJ7 W6XNM XRDW2 battery
- Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability.
- CE-/FCC-/RoHS-Certified for safety. 24 x 7 email support,12-month hassle-free warranty.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Battery Weight | 12 Ounces |
| Unit Count | 1.0 Count |
| Battery Cell Type | Lithium Metal |
| Recommended Uses For Product | Laptop |
| Reusability | Rechargeable |
| Battery Capacity | 65 Watt Hours |
| Voltage | 11.1 Volts |
| Compatible Phone Models | MR90Y |

## Product Details

- **Number of Batteries:** 1 Lithium Ion batteries required.
- **Brand:** SLE-TECH
- **Battery Cell Composition:** Lithium Metal
- **Battery Capacity:** 65 Watt Hours
- **Recommended Uses For Product:** Laptop

## Images

![SLE-TECH 65WH MR90Y Battery Compatible with Dell Inspiron 3521 3721 5521 5721 14-3421 14-3437 14R-5421 14R-5437 17 Latitude14 3000 3540 Series XCMRD PN 0MF69 N121Y G35K4 MK1R0 VR7HM - Image 1](https://m.media-amazon.com/images/I/61t6LqZMXHL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: dose the battery fall out of a dell inspiron 15 3521**
A: No, this battery fit fine. It does not fall out. Very satisfied with mine.

**Q: Will this fit the Inspiron 5535?**
A: Check on the reverse of the battery if it says MR90Y, if it says that, the battery will fit your laptop.

**Q: My battery is not working and it stopped working outside the return window. Can I get a replacement for my battery?**
A: No, there is no way to contact them despite stating that they have a one year “warranty” mine dies after just under 6 months and I have no way to contact them (warranty link on Amazon leads to a blank page) even though it is still allegedly under warranty.

**Q: Is useful for dell 3542?**
A: yes

## Frequently Bought Together

- SLE-TECH 65WH MR90Y Battery Compatible with Dell Inspiron 3521 3721 5521 5721 14-3421 14-3437 14R-5421 14R-5437 17 Latitude14 3000 3540 Series XCMRD PN 0MF69 N121Y G35K4 MK1R0 VR7HM
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**Shop now:** [https://www.desertcart.nl/products/41974977-sle-tech-65wh-mr90y-battery-compatible-with-dell-inspiron-3521](https://www.desertcart.nl/products/41974977-sle-tech-65wh-mr90y-battery-compatible-with-dell-inspiron-3521)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-25*