---
product_id: 486461738
title: "Galaxy S20 Ultra Battery, [Upgraded] UNKLOU 5800mAh Li-Polymer Replacement Battery for Samsung Galaxy S20 Ultra 5G 5G SM-G988 G988B EB-BG988ABY with Repair Replacement Tool Kit"
brand: "unklou"
price: "S$36"
currency: SGD
in_stock: true
reviews_count: 2
url: https://www.desertcart.sg/products/486461738-galaxy-s20-ultra-battery-upgraded-unklou-5800mah-li-polymer-replacement
store_origin: SG
region: Singapore
---

# Built-in microchip for safety Up to 800 charge cycles 5800mAh powerhouse Galaxy S20 Ultra Battery, [Upgraded] UNKLOU 5800mAh Li-Polymer Replacement Battery for Samsung Galaxy S20 Ultra 5G 5G SM-G988 G988B EB-BG988ABY with Repair Replacement Tool Kit

**Brand:** unklou
**Price:** S$36
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your Galaxy S20 Ultra like a pro—never miss a moment!

## Quick Answers

- **What is this?** Galaxy S20 Ultra Battery, [Upgraded] UNKLOU 5800mAh Li-Polymer Replacement Battery for Samsung Galaxy S20 Ultra 5G 5G SM-G988 G988B EB-BG988ABY with Repair Replacement Tool Kit by unklou
- **How much does it cost?** S$36 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/486461738-galaxy-s20-ultra-battery-upgraded-unklou-5800mah-li-polymer-replacement)

## Best For

- unklou enthusiasts

## Why This Product

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

## Key Features

- • **Endless Power Boost:** 5800mAh capacity keeps your Galaxy S20 Ultra running longer than ever.
- • **Smart Safety Shield:** Advanced microchip prevents overcharging, overheating, and short circuits for worry-free use.
- • **Peace of Mind Warranty:** 24-month warranty plus 30-day money-back guarantee ensures risk-free upgrade.
- • **Tailored Compatibility:** Specifically designed for Samsung Galaxy S20 Ultra models SM-G988/G988B for perfect fit and function.
- • **Certified Quality Assurance:** CE, ROHS, and UL certifications guarantee premium, reliable performance.

## Overview

The UNKLOU 5800mAh Li-Polymer replacement battery is a high-quality, certified upgrade for Samsung Galaxy S20 Ultra 5G models SM-G988 and G988B. Featuring built-in microchip protection and up to 800 charge cycles, it ensures safer, longer-lasting performance backed by a 24-month warranty and customer support.

## Description

Tips ：  Please double check your phone model prior to purchasing to ensure this replacement battery is compatible with your phone.  Product Specifications - Battery Capacity: 5,800 mAh - Battery Type: Lithium Ion Polymern  - Voltage Output: 3.85 V - Watt-hour: 22.33Wh   COMPATIBLE MODELS -Samsung Galaxy S20 Ultra -EB-BG988ABY -SM-G988  -SM-G988B  Package Includes: -Replacement Battery for Samsung Galaxy S20 Ultra x 1 pcs  -1 x Manual Guide  NOTE:  FAQ after installation  Q1. Why battery connector don’t fit? A1: Please check if you have bought and received wrong model battery, you can check your phone model 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. Note: if small stuff ( such as debris, or some other obstruction )drops in the battery socket, clean it up.  Q4. Why the battery I bought is not fully charged after installation? A4: For security, battery is never full charged when leaving factory and testing. It’s normal that batteries level is between 5-80% charged when you first put into phone.  Q5. Will I lose any date when changing my battery? A5: No data will be lost if the repair process is done correctly. You can find some instruction videos on YouTube or find a technician for help if you don't know how to replace your battery.

## Features

- 🌺【BRAND New Battery 】: UNKLOU Replacement battery for Samsung Galaxy S20 Ultra battery. Make your phone acting like a brand new
- 🌺【HIGH QUALITY A++ BATTERY】Manufactured and tested under strict quality control standards, Build-in microchip to prevent over-charging, over-discharging, short-circuit and over-heating. STRICT QUALITY-CONTROL. CE, ROHS and UL certified. The life of battery is up to 800 charge cycles.Top-rate A++ battery cells with multiple-protection for safer operation for both user and devices.
- 🌺【COMPATIBLE MODELS】: UNKLOU Replacement battery Compatible with Samsung Galaxy S20 Ultra Only, Model: EB-BG988ABY, SM-G988, SM-G988B . Not for other phone model .
- 🌺【USE SKILLS AND BEST PERFORMANCE】Use your original charger and cable which came with your phone to recharge this replacement battery. Using up all the power of battery for the first three times before charging, and then take a full charge,thus the battery can be reached the optimum effect of using. Please remember that its full performance and longevity is only achieved after 3 to 5 complete charge and discharge cycles.
- 🌺【24 Month WORRY-FREE WARRANTY】24 Month Warranty, 24-Hour reply and 30 days Money Back. What we sell is not only high quality battery, but also our friendly customer service.Please contact us via email if you have any questio

## Product Details

- **Brand:** UNKLOU
- **Battery Cell Composition:** Lithium Polymer
- **Battery Capacity:** 5800 Milliamp Hours
- **Recommended Uses For Product:** Phone
- **Unit Count:** 1 Count

## Images

![Galaxy S20 Ultra Battery, [Upgraded] UNKLOU 5800mAh Li-Polymer Replacement Battery for Samsung Galaxy S20 Ultra 5G 5G SM-G988 G988B EB-BG988ABY with Repair Replacement Tool Kit - Image 1](https://m.media-amazon.com/images/I/71teO6LV2nL.jpg)

## Available Options

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

## Customer Reviews

### ⭐ Pure Junk and seller will not respond. Seller will just take your money and Amazon helps him.
*by J***A on February 13, 2023*

It is pure Junk and the seller will not respond. The seller will just take your money and Amazon helps him do that. The battery will come charged at 30% and will not recharge. The battery is junk. DO not buy. Go to eBay and buy the original battery for 15 dollars.

### ⭐ Damaged my S20 phone
*by L***S on February 15, 2023*

Thank you Amazon for selling me a new $500 phone because the battery your company sold me heated up during charging and destroyed my screen. Great gimmick -- sell batteries that damage products that your company can then sell back to your customer.

## Frequently Bought Together

- UNKLOU Galaxy S20 Ultra Battery, [Upgraded] 5800mAh Li-Polymer Replacement Battery for Samsung Galaxy S20 Ultra 5G 5G SM-G988 G988B EB-BG988ABY with Repair Replacement Tool Kit
- MMOBIEL Earpiece Speaker Compatible with Samsung Galaxy S20 Ultra 5G / S20 Ultra / S20+ 5G / S20+ / S10+ / S10 5G / S10E / S9 / Note 10 - Earspeaker/Ear Piece Replacement - Incl. Screwdrivers
- MMOBIEL Dock Connector Compatible with Samsung Galaxy S20 Ultra 2020 - Charging Port - Headphone Port/Microphone Replacement - Type C - Incl. Screwdrivers

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sg/products/486461738-galaxy-s20-ultra-battery-upgraded-unklou-5800mah-li-polymer-replacement](https://www.desertcart.sg/products/486461738-galaxy-s20-ultra-battery-upgraded-unklou-5800mah-li-polymer-replacement)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-02*