---
product_id: 701994206
title: "Galaxy S21 Ultra Battery, (2024 Upgraded) 6800mAh EB-BG998ABY Li-Polymer Battery Replacement Compatible with Galaxy S21 Ultra 5G SM-G998B/DS SM-G998U with Screwdriver Tool Kit"
brand: "snronew"
price: "6477 som"
currency: KGS
in_stock: true
reviews_count: 8
category: "Snronew"
url: https://www.desertcart.kg/products/701994206-galaxy-s21-ultra-battery-2024-upgraded-6800mah-eb-bg998aby-li
store_origin: KG
region: Kyrgyzstan
---

# 6800mAh high-capacity power Includes screwdriver tool kit for DIY replacement Built-in microchip for multi-layer protection Galaxy S21 Ultra Battery, (2024 Upgraded) 6800mAh EB-BG998ABY Li-Polymer Battery Replacement Compatible with Galaxy S21 Ultra 5G SM-G998B/DS SM-G998U with Screwdriver Tool Kit

**Brand:** snronew
**Price:** 6477 som
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your Galaxy S21 Ultra like a pro — never miss a moment!

## Quick Answers

- **What is this?** Galaxy S21 Ultra Battery, (2024 Upgraded) 6800mAh EB-BG998ABY Li-Polymer Battery Replacement Compatible with Galaxy S21 Ultra 5G SM-G998B/DS SM-G998U with Screwdriver Tool Kit by snronew
- **How much does it cost?** 6477 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/701994206-galaxy-s21-ultra-battery-2024-upgraded-6800mah-eb-bg998aby-li)

## Best For

- snronew enthusiasts

## Why This Product

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

## Key Features

- • **DIY Friendly Kit:** Comes with a precision screwdriver tool kit and adhesive strip for hassle-free installation.
- • **Smart Safety Tech:** Advanced microchip guards against overcharging, overheating, and short circuits for peace of mind.
- • **Guaranteed Support:** Responsive customer service ready to resolve any issues within 24 hours.
- • **Power That Lasts All Day:** 6800mAh Li-Polymer battery ensures extended usage without constant recharging.
- • **Optimized Battery Lifespan:** Recommended 3-5 full charge cycles activate peak performance and longevity.

## Overview

The 2024 Upgraded Galaxy S21 Ultra Replacement Battery (EB-BG998ABY) delivers a robust 6800mAh capacity with built-in smart protections to keep your device safe and efficient. Compatible with Galaxy S21 Ultra 5G models SM-G998B/DS and SM-G998U, it includes a screwdriver tool kit for easy DIY installation. Designed to restore your phone’s battery life to peak performance, it requires 3-5 full charge cycles for optimal longevity and comes backed by dedicated customer support.

## Description

Kindly Suggestion: 1. If you want to replace the battery more easily, it is recommended that you search for a replacement battery video on YouTube, which will give you professional guidance and methods. 2. We suggest that the power should be 100% used up and fully charged for 3-5 times after finished replacing the battery, this can fully activate the battery performance. Note:Especially attention for the details of removing adhesive strip. Plz keep old battery in complete condition when unloading it. It will catch fire or explode if accidentally puncture. COMPATIBLE MODELS: -Galaxy S21 Ultra (EB-BG998ABY) Package Included: - 1 x Replacement Battery for S21 Ultra - 1 x Repair Tool Kit - 1 x Adhesive strip **************************************************************** FAQ after installation Q1. Why battery connector does not fit? A1: Please check if you have bought and received wrong model battery, this battery is only for Galaxy S21 Ultra. Check the model number on the back of your phone . Q2. Why phone can’t turn on? A2: Make sure battery connector was connected correctly and charge phone for 15 minutes with original charger and cable. The charging needs to be charged to 5% before it can be turned on normally, If battery have exhausted battery power. Q3. Why battery won’t charge? A3: Maybe bad connect. Reopen your phone and reconnect the battery connector to logic board socket. Make sure battery connector connects well.

Review: Reliability Battery - is been a nice experience, I did change the battery my own, because I want my sister to have a reliable phone, I got the new version, so I can help her with my old, after I full charge it, y pas 10 days and still have the full charge, I was expecting a 70 or less charge, but what surprise, still full. yes is reliable battery from this store.
Review: Doesn't hold a charge - Seemed fine at first, but by day 3 the battery randomly drops 20% - 30%.

## Features

- Rigorous Quality Inspection: All batteries undergo thorough testing before shipping to ensure your phone performs just as well as when you first received it.The built-in microchip provides multiple protections against overcharging, over-discharging, short circuits, and overheating.
- Compatible Models: This battery replacement is compatible with S21 Ultra models such as SM-G998B/DS SM-G998U Before purchasing, please verify your current battery's part number and model.
- Usage Tips: It is recommended to fully discharge and recharge the S21 Ultra battery, especially during the initial 3 charging cycles. This practice can significantly enhance the overall battery lifespan.Keep in mind that optimal performance and longevity are typically achieved after 3 to 5 complete charge and discharge cycles.
- Long-Lasting Battery: Restore your EB-BG998ABY battery's performance and save money.Experience rapid charging from 0% to 100% in seconds by simply swapping batteries. We highly recommend watching relevant online videos before installation.
- Customer Assistance :Please contact us if you encounter any issues with our product.We guarantee to resolve any concerns to your satisfaction within 24 hours.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CLRK3RBQ |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Best Sellers Rank | #21,122 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #50 in Cell Phone Replacement Batteries |
| Color | Black |
| Customer Reviews | 3.8 3.8 out of 5 stars (299) |
| Date First Available | February 6, 2019 |
| Item Weight | 3.2 ounces |
| Item model number | YYS6 |
| Manufacturer | Shenzhen FengYunTong Technology Co., Ltd. |
| Other display features | CE |
| Package Dimensions | 6 x 5 x 1 inches |

## Product Details

- **Battery Cell Composition:** Lithium Polymer
- **Brand:** SNRONEW
- **Number of Batteries:** 1 Lithium Polymer batteries required. (included)
- **Reusability:** Rechargeable
- **Voltage:** 13.5 Millivolts

## Images

![Galaxy S21 Ultra Battery, (2024 Upgraded) 6800mAh EB-BG998ABY Li-Polymer Battery Replacement Compatible with Galaxy S21 Ultra 5G SM-G998B/DS SM-G998U with Screwdriver Tool Kit - Image 1](https://m.media-amazon.com/images/I/71M2yt753XL.jpg)
![Galaxy S21 Ultra Battery, (2024 Upgraded) 6800mAh EB-BG998ABY Li-Polymer Battery Replacement Compatible with Galaxy S21 Ultra 5G SM-G998B/DS SM-G998U with Screwdriver Tool Kit - Image 2](https://m.media-amazon.com/images/I/61xgxDYYyQL.jpg)
![Galaxy S21 Ultra Battery, (2024 Upgraded) 6800mAh EB-BG998ABY Li-Polymer Battery Replacement Compatible with Galaxy S21 Ultra 5G SM-G998B/DS SM-G998U with Screwdriver Tool Kit - Image 3](https://m.media-amazon.com/images/I/61dTFMpar6L.jpg)
![Galaxy S21 Ultra Battery, (2024 Upgraded) 6800mAh EB-BG998ABY Li-Polymer Battery Replacement Compatible with Galaxy S21 Ultra 5G SM-G998B/DS SM-G998U with Screwdriver Tool Kit - Image 4](https://m.media-amazon.com/images/I/71my4HY4N+L.jpg)
![Galaxy S21 Ultra Battery, (2024 Upgraded) 6800mAh EB-BG998ABY Li-Polymer Battery Replacement Compatible with Galaxy S21 Ultra 5G SM-G998B/DS SM-G998U with Screwdriver Tool Kit - Image 5](https://m.media-amazon.com/images/I/61WkcltFJhL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliability Battery
*by A***L on October 14, 2025*

is been a nice experience, I did change the battery my own, because I want my sister to have a reliable phone, I got the new version, so I can help her with my old, after I full charge it, y pas 10 days and still have the full charge, I was expecting a 70 or less charge, but what surprise, still full. yes is reliable battery from this store.

### ⭐ Doesn't hold a charge
*by T***E on January 24, 2026*

Seemed fine at first, but by day 3 the battery randomly drops 20% - 30%.

### ⭐⭐⭐⭐⭐ Samsung S23 Ultra battery
*by A***K on October 4, 2025*

Easy to install, the battery work like a new phone. It last longer than a day, before i have to recharge again. Love it.

## Frequently Bought Together

- SNRONEW Galaxy S21 Ultra Battery, (2024 Upgraded) 6800mAh EB-BG998ABY Li-Polymer Battery Replacement Compatible with Galaxy S21 Ultra 5G SM-G998B/DS SM-G998U with Screwdriver Tool Kit
- Perzework Rear Back Glass Replacement for Samsung Galaxy S21 Ultra 5G with Pre-Installed Adhesive and Repair Tool Kits (Phantom Black)

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**Shop now:** [https://www.desertcart.kg/products/701994206-galaxy-s21-ultra-battery-2024-upgraded-6800mah-eb-bg998aby-li](https://www.desertcart.kg/products/701994206-galaxy-s21-ultra-battery-2024-upgraded-6800mah-eb-bg998aby-li)

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-02-14*