---
product_id: 505143655
title: "RJ40G 4-Cell 63Wh Laptop Battery Replacement for Dell Latitude 15 5520 Latitude 14 5420 Precision 15 3560 Series M033W 01K2CF 075X16 WY9DX P137G P137G001 P104F P104F001 0WK3F1 0M3KCN 15.2V 3941mAh"
brand: "mobik"
price: "47101 Ft"
currency: HUF
in_stock: true
reviews_count: 8
category: "Mobik"
url: https://www.desertcart.hu/products/505143655-rj40g-4-cell-63wh-laptop-battery-replacement-for-dell-latitude
store_origin: HU
region: Hungary
---

# 3941mAh long-lasting charge Up to 500 recharge cycles 63Wh high-capacity power RJ40G 4-Cell 63Wh Laptop Battery Replacement for Dell Latitude 15 5520 Latitude 14 5420 Precision 15 3560 Series M033W 01K2CF 075X16 WY9DX P137G P137G001 P104F P104F001 0WK3F1 0M3KCN 15.2V 3941mAh

**Brand:** mobik
**Price:** 47101 Ft
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** RJ40G 4-Cell 63Wh Laptop Battery Replacement for Dell Latitude 15 5520 Latitude 14 5420 Precision 15 3560 Series M033W 01K2CF 075X16 WY9DX P137G P137G001 P104F P104F001 0WK3F1 0M3KCN 15.2V 3941mAh by mobik
- **How much does it cost?** 47101 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/505143655-rj40g-4-cell-63wh-laptop-battery-replacement-for-dell-latitude)

## Best For

- mobik enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** High-quality Li-ion cells deliver up to 500 recharge cycles, keeping you powered longer and reducing waste.
- • **Seamless Compatibility:** Perfectly fits Dell Latitude 14 5420, 15 5520, and Precision 15 3560 series laptops—no guesswork needed.
- • **Installation Made Easier:** Includes essential tools for a smooth replacement experience—because your time is valuable.
- • **Power Through Your Workday:** 63Wh capacity ensures extended unplugged productivity for busy professionals.
- • **Certified Safety & Reliability:** UL, CE, FCC, and RoHS certifications guarantee peace of mind with every charge.

## Overview

The RJ40G 4-Cell 63Wh lithium-ion battery replacement is engineered for Dell Latitude 14 5420, 15 5520, and Precision 15 3560 laptops. Delivering 3941mAh at 15.2V, it offers long-lasting performance with up to 500 recharge cycles. Safety certified by UL, CE, FCC, and RoHS, it ensures reliable, worry-free power. Included tools simplify installation, making it the smart choice for professionals seeking dependable laptop endurance.

## Description

desertcart.com: RJ40G 4-Cell 63Wh Laptop Battery Replacement for Dell Latitude 15 5520 Latitude 14 5420 Precision 15 3560 Series M033W 01K2CF 075X16 WY9DX P137G P137G001 P104F P104F001 0WK3F1 0M3KCN 15.2V 3941mAh : Electronics

Review: Good quality and works! - I got this to replace a battery that had less than 70% charge in it. The replacement process was straightforward and didn't require any instructions, thankfully. If you've ever opened a laptop before and replaced a component (HDD, SSD, RAM, etc.) this was only slightly more challenging. Dell made the process as easy as they could while allowing the laptop to retain a decent size. If you do not have much experience opening laptops and replacing components, using this replacement battery to replace your defective battery may be a bit challenging and you should seek assistance, in my opinion. I was very glad to have the tools included even though I did not need them, but had this laptop never been opened before, the plastic pick included would have been so greatly needed to ensure the chassis is not damaged by metal tools. I did not use these tools during this process as I have my own and my laptop had been opened before, but greatly to have them included with the replacement battery. After installing the replacement battery and closing up the laptop chassis and then turning on the laptop, it did take a moment for my OS to notice the new battery. The laptop would not boot without being connected to power and once in the OS, the battery indicated 29% charge and did not move from there for several minutes. After a few minutes, the battery began showing 11% and then climbed to 57% before I turned off the laptop. Checking the health of this laptop in my OS, my laptop reports this has a 98% health rating which is still decent for a replacement battery like this.
Review: Excellent Battery and moderately easy installation. - Excellent product for the price. Definitely glad I bought a battery which included screwdrivers and spudger (looks like a guitar pick). Watched a youtube video for instructions on installation. Everything went surprisingly well. Would definitely recommend.

## Features

- Battery Capacity: 63Wh/3941mAh lithium-ion battery provides long-lasting power for your laptop
- Compatible Models: Fits Dell Latitude 14 5420, 15 5520, Precision 15 3560 series laptops
- Safety Certified: UL, CE, FCC, RoHS certified for safety and quality assurance
- High Reusability: Li-ion battery cells provide up to 500 recharge cycles over the life of the battery
- Reliable Performance: Strict quality control and standards compliance for safety and reliability

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09VT2LF4C |
| Batteries | 1 A batteries required. (included) |
| Best Sellers Rank | #8,382 in Electronics ( See Top 100 in Electronics ) #46 in Laptop Batteries |
| Customer Reviews | 4.4 4.4 out of 5 stars (152) |
| Date First Available | March 17, 2022 |
| Item Weight | 11.3 ounces |
| Item model number | RJ40G |
| Manufacturer | Shenzhen Shangneng Technology Co., Ltd. |
| Product Dimensions | 10.24 x 3.94 x 0.39 inches |

## Product Details

- **Battery Capacity:** 3941 Milliamp Hours
- **Battery Cell Composition:** Lithium Ion
- **Brand:** Mobik
- **Number of Batteries:** 1 A batteries required. (included)
- **Recommended Uses For Product:** Laptop

## Images

![RJ40G 4-Cell 63Wh Laptop Battery Replacement for Dell Latitude 15 5520 Latitude 14 5420 Precision 15 3560 Series M033W 01K2CF 075X16 WY9DX P137G P137G001 P104F P104F001 0WK3F1 0M3KCN 15.2V 3941mAh - Image 1](https://m.media-amazon.com/images/I/71PqqDdpTaL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good quality and works!
*by N***N on October 14, 2024*

I got this to replace a battery that had less than 70% charge in it. The replacement process was straightforward and didn't require any instructions, thankfully. If you've ever opened a laptop before and replaced a component (HDD, SSD, RAM, etc.) this was only slightly more challenging. Dell made the process as easy as they could while allowing the laptop to retain a decent size. If you do not have much experience opening laptops and replacing components, using this replacement battery to replace your defective battery may be a bit challenging and you should seek assistance, in my opinion. I was very glad to have the tools included even though I did not need them, but had this laptop never been opened before, the plastic pick included would have been so greatly needed to ensure the chassis is not damaged by metal tools. I did not use these tools during this process as I have my own and my laptop had been opened before, but greatly to have them included with the replacement battery. After installing the replacement battery and closing up the laptop chassis and then turning on the laptop, it did take a moment for my OS to notice the new battery. The laptop would not boot without being connected to power and once in the OS, the battery indicated 29% charge and did not move from there for several minutes. After a few minutes, the battery began showing 11% and then climbed to 57% before I turned off the laptop. Checking the health of this laptop in my OS, my laptop reports this has a 98% health rating which is still decent for a replacement battery like this.

### ⭐⭐⭐⭐⭐ Excellent Battery and moderately easy installation.
*by J***G on December 29, 2025*

Excellent product for the price. Definitely glad I bought a battery which included screwdrivers and spudger (looks like a guitar pick). Watched a youtube video for instructions on installation. Everything went surprisingly well. Would definitely recommend.

### ⭐⭐⭐⭐⭐ Worked for my Dell 5420, says 100% battery life
*by J***N on November 18, 2025*

Worked for my Dell Latitude 5420. I’m unsure of my specific model of 5420, but it’s the 14” with no smart card reader slot, and no tap card reader. Specs are in the pics, I upgraded the ram to 32gb, stock was 16gb. I bought this battery to replace an aging stock Dell RJ40G, which showed up as model 1K2CF19 in system info. Took me about five minutes to swap it out and boot back up. In Fedora 43 with KDE Plasma 6.5.2 the new battery shows 100% health and at 61% capacity says it has about 6 hours to discharge. That’s over twice as long as the battery I replaced that had 52-55% health. I know others have said it didn’t work for their 5420, so still caveat emptor, but it worked in mine. So far it’s good, I’ll update my review if I encounter anything in the next few weeks.

## Frequently Bought Together

- RJ40G 4-Cell 63Wh Laptop Battery Replacement for Dell Latitude 15 5520 Latitude 14 5420 Precision 15 3560 Series M033W 01K2CF 075X16 WY9DX P137G P137G001 P104F P104F001 0WK3F1 0M3KCN 15.2V 3941mAh
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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-07*