---
product_id: 661230338
title: "New Upgraded Battery for Galaxy S21 FE, EB-BG990ABY Replacement Battery Compatible with Samsung Galaxy S21 FE, with Repair Tools & Instruction"
brand: "maxsharks"
price: "$65.98"
currency: USD
in_stock: true
reviews_count: 8
category: "Maxsharks"
url: https://www.desertcart.ec/products/661230338-new-upgraded-battery-for-galaxy-s21-fe-eb-bg990aby-replacement
store_origin: EC
region: Ecuador
---

# Long-lasting, safe lithium polymer battery 100% OEM fit for Galaxy S21 FE Complete DIY repair kit included New Upgraded Battery for Galaxy S21 FE, EB-BG990ABY Replacement Battery Compatible with Samsung Galaxy S21 FE, with Repair Tools & Instruction

**Brand:** maxsharks
**Price:** $65.98
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Up Your Galaxy S21 FE Like a Pro — Don’t Let Battery Drain Hold You Back!

## Quick Answers

- **What is this?** New Upgraded Battery for Galaxy S21 FE, EB-BG990ABY Replacement Battery Compatible with Samsung Galaxy S21 FE, with Repair Tools & Instruction by maxsharks
- **How much does it cost?** $65.98 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/661230338-new-upgraded-battery-for-galaxy-s21-fe-eb-bg990aby-replacement)

## Best For

- maxsharks enthusiasts

## Why This Product

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

## Key Features

- • **All-in-One Repair Kit:** Includes screwdrivers, pry tools, adhesive tape, and step-by-step instructions for effortless battery replacement at home.
- • **Sustainable Tech Upgrade:** Breathe new life into your device and avoid costly phone replacements—join the eco-smart movement.
- • **Enhanced Battery Longevity:** Tested for safety and durability to restore your phone’s power life and reliability.
- • **DIY Empowerment with Confidence:** Clear visual guide and pre-cut adhesive make battery replacement accessible even for first-timers.
- • **Precision Engineered for Galaxy S21 FE:** Guaranteed perfect compatibility with SM-G990 model for seamless performance.

## Overview

This New Upgraded Battery for Samsung Galaxy S21 FE (SM-G990) is a lithium polymer replacement designed for perfect fit and long-lasting performance. The kit includes all necessary tools and pre-cut adhesive tape, plus clear instructions, enabling easy at-home battery replacement. Ideal for professionals seeking a sustainable, cost-effective way to extend their phone’s lifespan without sacrificing reliability.

## Description

New Upgraded Battery for Galaxy S21 FE, EB-BG990ABY Replacement Battery Compatible with Samsung Galaxy S21 FE, with Repair Tools & Instruction

Review: Defective Battery - Received defective battery. Old battery was charging phone but charge was not lasting. So I purchased this replacement battery for my Xiaomi 9T Pro. Item received with packaging in tact and installation attempted as per instructions. However new battery would not charge. On examination of old and new batteries, new battery is missing a metal part on the end. I am not in US. Return will be costly and is not an option. Now I'm stuck with a defective battery I cannot use 😩
Review: Replacement Battery Works Great - My phone works like new with this new battery. At around 4 years old, the old battery was causing the phone to spontaneously turn off without warning. Now the phone works perfectly again. Note that, although this is a great solution for breathing new life into an older phone, cell phone manufacturers go out of their way to make sure you can't easily replace the battery in an effort to force people to buy a new phone. LG is no exception, and in this case, they have not only glued on the back cover with no slot to get a prying tool started, but they made the back cover out of material that shatters like thin glass if you over-bend it even slightly. You will need a hair dryer (I used a heat gun) to soften the glue that holds the back cover on, and a lot of patience if you plan on getting the cover off without breaking it. Plan on needing to also buy a replacement back cover, but fortunately the back cover is readily available all over the internet for this phone for about 10 or 12 bucks. Very happy to have a like-new phone without senselessly spending hundreds of dollars on a new one when the old one does the job just fine.

## Features

- Perfect Fit Only for S21 FE: Works only with Samsung Galaxy S21 FE (SM-G990). Check your phone model before buying.
- Safe & Long-Lasting Battery: New battery tested for safety and performance. Charge fully 3 times after installing for best results.
- Easy-to-Use Adhesive Included: Pre-cut sticky tape for battery and back cover—just peel and press to secure.
- Clear Repair Instructions: Simple guide with pictures helps anyone replace the battery step by step.
- All Tools You Need: Kit includes screwdrivers, pry tools, and more for safe, quick repairs at home.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D9NCL2Q2 |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Best Sellers Rank | #35,361 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #162 in Cell Phone Replacement Batteries |
| Customer Reviews | 4.1 4.1 out of 5 stars (84) |
| Date First Available | July 18, 2024 |
| Item Weight | 5 ounces |
| Item model number | EB-BG973ABU |
| Manufacturer | MAXSHARKS |
| Package Dimensions | 8.35 x 5.12 x 0.75 inches |

## Product Details

- **Battery Cell Composition:** Lithium Ion
- **Brand:** MAXSHARKS
- **Number of Batteries:** 1 Lithium Polymer batteries required. (included)
- **Recommended Uses For Product:** Phone
- **Unit Count:** 1.0 Count

## Images

![New Upgraded Battery for Galaxy S21 FE, EB-BG990ABY Replacement Battery Compatible with Samsung Galaxy S21 FE, with Repair Tools & Instruction - Image 1](https://m.media-amazon.com/images/I/81pgztpWXeL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Defective Battery
*by D***I on July 7, 2025*

Received defective battery. Old battery was charging phone but charge was not lasting. So I purchased this replacement battery for my Xiaomi 9T Pro. Item received with packaging in tact and installation attempted as per instructions. However new battery would not charge. On examination of old and new batteries, new battery is missing a metal part on the end. I am not in US. Return will be costly and is not an option. Now I'm stuck with a defective battery I cannot use 😩

### ⭐⭐⭐⭐⭐ Replacement Battery Works Great
*by J***H on May 30, 2023*

My phone works like new with this new battery. At around 4 years old, the old battery was causing the phone to spontaneously turn off without warning. Now the phone works perfectly again. Note that, although this is a great solution for breathing new life into an older phone, cell phone manufacturers go out of their way to make sure you can't easily replace the battery in an effort to force people to buy a new phone. LG is no exception, and in this case, they have not only glued on the back cover with no slot to get a prying tool started, but they made the back cover out of material that shatters like thin glass if you over-bend it even slightly. You will need a hair dryer (I used a heat gun) to soften the glue that holds the back cover on, and a lot of patience if you plan on getting the cover off without breaking it. Plan on needing to also buy a replacement back cover, but fortunately the back cover is readily available all over the internet for this phone for about 10 or 12 bucks. Very happy to have a like-new phone without senselessly spending hundreds of dollars on a new one when the old one does the job just fine.

### ⭐⭐⭐⭐ Pretty good back panel and battery replacement kit.
*by J***S on December 17, 2025*

I've been using this for a few months now, and it's a nice little kit. I didn't realize the geniuses at Samsung made the back of my phone out of glass! Brilliant. The battery seems okay. I'm not sure I got any additional charge capacity out of this battery, but my old one was dead and this one is doing the job.

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**Shop now:** [https://www.desertcart.ec/products/661230338-new-upgraded-battery-for-galaxy-s21-fe-eb-bg990aby-replacement](https://www.desertcart.ec/products/661230338-new-upgraded-battery-for-galaxy-s21-fe-eb-bg990aby-replacement)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-03-03*