---
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: "¥8065"
currency: JPY
in_stock: true
reviews_count: 13
category: "Sle Tech"
url: https://www.desertcart.jp/products/41974977-sle-tech-65wh-mr90y-battery-compatible-with-dell-inspiron-3521
store_origin: JP
region: Japan
---

# 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:** ¥8065
**Availability:** ✅ In Stock

## Summary

> 🔋 Stay powered, stay ahead — never miss a beat with SLE-TECH!

## 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?** ¥8065 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/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

- • **Rapid Recharge Ready:** 6-cell Li-ion design ensures faster charging and longer runtime.
- • **Safety First, Always:** CE/FCC/RoHS certified with built-in circuit protection for peace of mind.
- • **Power Through Your Day:** 65WH capacity fuels extended productivity without compromise.
- • **Seamless Compatibility:** Perfectly fits Dell Inspiron & Latitude 3000 series for hassle-free replacement.
- • **Support That Has Your Back:** 24/7 email support plus a 12-month hassle-free warranty keeps you covered.

## Overview

The SLE-TECH 65WH MR90Y is a premium-grade Li-ion replacement battery designed for Dell Inspiron and Latitude 3000 series laptops. Featuring a robust 6-cell, 11.1V configuration, it delivers reliable long-lasting power with fast recharge capabilities. Certified for safety and equipped with built-in circuit protection, it ensures stable performance and peace of mind. Backed by 24/7 support and a 12-month warranty, it’s the smart choice to revive your aging laptop and keep you connected.

## Description

desertcart.com: 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 : Electronics

Review: Good quality - Works very well
Review: Great price - Perfectly compatible to my aging laptop

## 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 |
|---------------|-------|
| ASIN | B06XPCS5BK |
| Batteries | 1 Lithium Ion batteries required. |
| Best Sellers Rank | #12,426 in Electronics ( See Top 100 in Electronics ) #94 in Laptop Batteries |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,775) |
| Date First Available | March 17, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 12.6 ounces |
| Item model number | MR90Y |
| Manufacturer | DongGuan Simer Electronics Co., LTD |
| Package Dimensions | 11.81 x 2.91 x 1.26 inches |

## Product Details

- **Battery Capacity:** 65 Watt Hours
- **Battery Cell Composition:** Lithium Metal
- **Brand:** SLE-TECH
- **Number of Batteries:** 1 Lithium Ion batteries required.
- **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)

## 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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good quality
*by K***E on November 9, 2025*

Works very well

### ⭐⭐⭐⭐⭐ Great price
*by B***R on November 26, 2025*

Perfectly compatible to my aging laptop

### ⭐⭐⭐⭐⭐ Works Great!
*by D***N on August 8, 2025*

Just perfect. Perfect fit.. perfect charge and was powered enough to use immediately. Arrived a day early. Great Seller and I highly recommend.

## 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.jp/products/41974977-sle-tech-65wh-mr90y-battery-compatible-with-dell-inspiron-3521](https://www.desertcart.jp/products/41974977-sle-tech-65wh-mr90y-battery-compatible-with-dell-inspiron-3521)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-01*