---
product_id: 455363174
title: "Replacement Battery EB-BG991ABY Compatible with Samsung Galaxy S21 5G SM-G991U1 with Tools"
brand: "e-yiiviil"
price: "246 kr"
currency: DKK
in_stock: true
reviews_count: 3
url: https://www.desertcart.dk/products/455363174-replacement-battery-eb-bg991aby-compatible-with-samsung-galaxy-s21-5g
store_origin: DK
region: Denmark
---

# Fast charging support 4500mAh capacity Includes installation tools Replacement Battery EB-BG991ABY Compatible with Samsung Galaxy S21 5G SM-G991U1 with Tools

**Brand:** e-yiiviil
**Price:** 246 kr
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your passion with every charge!

## Quick Answers

- **What is this?** Replacement Battery EB-BG991ABY Compatible with Samsung Galaxy S21 5G SM-G991U1 with Tools by e-yiiviil
- **How much does it cost?** 246 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/455363174-replacement-battery-eb-bg991aby-compatible-with-samsung-galaxy-s21-5g)

## Best For

- e-yiiviil enthusiasts

## Why This Product

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

## Key Features

- • **📞 24/7 Support:** Our dedicated team is here to assist you within 24 hours for any queries!
- • **✅ Quality Assurance:** Each battery undergoes rigorous testing to ensure peak performance.
- • **🔋 Power Up Your Life:** Revitalize your Samsung Galaxy S21 5G with a robust 4500mAh battery!
- • **⚡ Stay Connected Longer:** Experience lightning-fast charging to keep you powered throughout the day.
- • **🛠️ DIY Installation Made Easy:** Comes with essential tools for a hassle-free battery replacement.

## Overview

The Replacement Battery EB-BG991ABY is specifically designed for the Samsung Galaxy S21 5G SM-G991U1, offering a high-capacity 4500mAh power source. It includes essential tools for installation and has been rigorously tested for quality assurance. Professional installation is recommended, and customer support is readily available for any inquiries.

## Description

Item specsPart No:EB-BG991ABYCapacity:3880mAh/15.06WhVoltage: 3.88VType: PolymerPackaging: 1 x battery，1x toolsCompatible withSamsung Galaxy S21 5G SM-G991U1Notice before purchase1. Be carefully check the model number of your device to see if this battery is compatible with your device.2. A new Li-ion battery will achieve its best performance after 2 or 3 complete cycles of charge & discharge.3. When you install it, be sure the connector has been properly connected to your device.4. Do not use low quality third-party adapter charger to charge your device, that will shorten the battery's life.Contact usIf you have any questions or any issues when using our product, please send us a message, we will answer you within 24 hrs. Thank you for your time.

## Features

- This battery is compatible with Samsung Galaxy S21 5G SM-G991U1, please carefully check your phone model before purchase.
- When you replace your old battery, please carefully and gently disconnect your old battery's cable then connect your new battery to the mainboard. If you phone cannot be powered on with the new battery, you may need to install it again and be sure to check if the cable has been properly connected.
- If you have any questions or got any issues with our product, please feel free to contact us, we will reply to you within 24 hrs. We highly appreciate your kind patience.
- All the batteries have been tested before shipping out, and come with repairing tools for installation. No installation instruction.
- Need professional installation technology,We won't responsible for any damage due to improper operation.

## Product Details

- **Number of Batteries:** 1 Lithium Polymer batteries required.
- **Brand:** E-YIIVIIL
- **Battery Cell Composition:** Lithium Polymer
- **Battery Capacity:** 3880 Milliamp Hours
- **Recommended Uses For Product:** galaxy

## Images

![Replacement Battery EB-BG991ABY Compatible with Samsung Galaxy S21 5G SM-G991U1 with Tools - Image 1](https://m.media-amazon.com/images/I/715vGg2WX7L.jpg)
![Replacement Battery EB-BG991ABY Compatible with Samsung Galaxy S21 5G SM-G991U1 with Tools - Image 2](https://m.media-amazon.com/images/I/71Ma-fpOK-L.jpg)
![Replacement Battery EB-BG991ABY Compatible with Samsung Galaxy S21 5G SM-G991U1 with Tools - Image 3](https://m.media-amazon.com/images/I/616UsIw2ALL.jpg)
![Replacement Battery EB-BG991ABY Compatible with Samsung Galaxy S21 5G SM-G991U1 with Tools - Image 4](https://m.media-amazon.com/images/I/61FymOOu8PL.jpg)
![Replacement Battery EB-BG991ABY Compatible with Samsung Galaxy S21 5G SM-G991U1 with Tools - Image 5](https://m.media-amazon.com/images/I/81CIKEFOPAL.jpg)

## Customer Reviews

### ⭐ Lasted 1 day
*by C***S on September 19, 2024*

Worked great for one day, then would no longer hold charge. Have to deal with another installation fee and returning

### ⭐ Battery Life Day 0 same as original 3-year old battery being replaced
*by T***Z on October 31, 2023*

Sucks. On Day 0, battery life was same as old battery I replaced. Now, 3 weeks later, I have to charge battery 2-3 times per day over an 18 hour day. Do NOT buy.

### ⭐⭐⭐⭐⭐ Excelente
*by J***Z on January 14, 2022*

Fácil de instalar

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.dk/products/455363174-replacement-battery-eb-bg991aby-compatible-with-samsung-galaxy-s21-5g](https://www.desertcart.dk/products/455363174-replacement-battery-eb-bg991aby-compatible-with-samsung-galaxy-s21-5g)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-01-23*