---
product_id: 221402853
title: "- Replacement Battery for Logitech UE MegaBoom Compatible with S-00147 984-001362 084-000845 Ultimate Ears Megaboom 3 Megaboom 3 S-00171 fits Part No Logitech 533-000116, 533-000138,7.4V Li-ion"
brand: "cs battery"
price: "£31.71"
currency: GBP
in_stock: true
reviews_count: 10
category: "Cs Battery"
url: https://www.desertcart.co.uk/products/221402853-replacement-battery-for-logitech-ue-megaboom-compatible-with-s-00147
store_origin: GB
region: United Kingdom
---

# 7.4V optimized voltage 3400mAh high-capacity Li-ion Perfect UE MegaBoom fit - Replacement Battery for Logitech UE MegaBoom Compatible with S-00147 984-001362 084-000845 Ultimate Ears Megaboom 3 Megaboom 3 S-00171 fits Part No Logitech 533-000116, 533-000138,7.4V Li-ion

**Brand:** cs battery
**Price:** £31.71
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your party, not your worries — keep the beat alive with every charge!

## Quick Answers

- **What is this?** - Replacement Battery for Logitech UE MegaBoom Compatible with S-00147 984-001362 084-000845 Ultimate Ears Megaboom 3 Megaboom 3 S-00171 fits Part No Logitech 533-000116, 533-000138,7.4V Li-ion by cs battery
- **How much does it cost?** £31.71 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/221402853-replacement-battery-for-logitech-ue-megaboom-compatible-with-s-00147)

## Best For

- cs battery enthusiasts

## Why This Product

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

## Key Features

- • **Easy DIY Upgrade:** Simple installation revives your speaker’s battery life without costly replacements or OEM wait times.
- • **Premium Li-ion Tech:** 7.4V voltage with imported super cells ensures safety, longevity, and zero memory effect.
- • **Smart Charging Tips:** Maximize battery health with original chargers and calibration cycles for flawless performance.
- • **Power Through Your Day:** 3400mAh capacity delivers marathon playback—up to 10+ hours with juice to spare.
- • **Seamless Compatibility:** Specifically engineered for UE MegaBoom & MegaBoom 3 models—no guesswork, just plug & play.

## Overview

This high-capacity 7.4V 3400mAh Li-ion replacement battery is designed exclusively for Logitech UE MegaBoom and MegaBoom 3 speakers. Engineered with premium imported cells, it offers long-lasting, safe, and reliable power to extend your speaker’s life. Easy to install and compatible with original chargers, it delivers up to 10+ hours of playback, making it the smart, cost-effective choice to keep your sound booming without interruption.

## Description

Your replacement battery supplier. We have over 20 years of experience in battery R&D and manufacturing. Our mission is to help you find the right battery/accessories to get the most out of your equipment. Buying replacement batteries instead of new equipment can save you money and give your beloved power tools a second life. High-quality, high-capacity replacement batteries provide long-lasting battery life. Get back to satisfying hours of use without the worry of sudden stops in the middle of your work - just like new! Compatible device models: UE MegaBoom, UE MegaBoom 3, S-00147, S-00171 (Not applicable to the UE Boom series) Compatible battery models: 533-000116, 533-000138, 533-000146 Specifications: Battery voltage: 7.4V Battery capacity: 3400mAh / 25.16Wh Pre-purchase tips: Before purchasing, please use ""Ctrl+F"" to find compatible models and original battery models. You can continue to charge the replaced battery with the original charger. The new battery will perform best after completing 2 to 3 complete charge and discharge cycles. Battery advantages No memory effect, can be charged and discharged on demand, no capacity loss. The battery uses high-quality imported super cells, which is safer to use. Low self-discharge rate can maximize production efficiency and reduce downtime. Precautions Do not over-discharge, squeeze, incinerate or heat the battery. Do not short-circuit; do not weld directly on the battery surface. Do not use or heat outside the allowed temperature range. Do not disassemble the battery internally. When the battery reaches the termination voltage, it should be removed from the instrument in time. Please strictly follow the above precautions to avoid battery expansion, leakage or even explosion due to improper operation and use.

Review: Mega boom battery. - It was easy to install and charged up just fine. Used my speaker and played for at least ten hours and had 30% left. Charged battery and put the speaker up for another day. The tool broke due to not understanding how the cover is released to access the battery. Managed to get the cover up to change the battery without breaking it. Side note watch videos to get a feel of how to release the cover.
Review: Reliable Replacement Battery for Logitech UE MegaBoom 3 - When my UE MegaBoom 3 speaker needed a new battery and the OEM option was nowhere to be found, I turned to this replacement battery. Despite being slightly larger in capacity than the original (3130mAH/22.5Wh 7.2V vs 3400mAh/25.16Wh 7.4V), it fit seamlessly and worked without any issues. After three months of usage, I can confidently say that this replacement battery does the job well. It holds a charge effectively, keeping my speaker running for extended periods without trouble. One crucial tip for users is to perform a calibration when installing the new battery. Charging it to 100%, allowing it to discharge completely, then leaving it plugged in overnight ensures accurate battery percentage detection by the speaker's circuitry. It was super easy to dissamble the speaker just be careful with the gasket, and forget about putting your speaker in the water after this replacement, at least I wont even try to do it. Overall, I'm satisfied with the performance of this replacement battery. It may not be identical to the OEM option, but it gets the job done reliably, keeping my UE MegaBoom up and running for extended listening sessions.

## Features

- 【Applicable machine models】UE MegaBoom, UE MegaBoom 3, S-00147, S-00171 (Not applicable to the UE Boom series)
- 【Perfectly compatible】Part Number: 533-000116, 533-000138, 533-000146
- 【Battery Specifications】Voltage: 7.4 V, Type: Li-ion Capacity: 3400 mAh / 25.16 Wh
- Usage suggestion: To achieve the best charging result, please use the original high-quality charging head and data cable provided.
- Please confirm your original battery part number or machine model is correct before purchasing

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08F7GQ3KJ |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Best Sellers Rank | #568 in Camera Batteries |
| Customer Reviews | 4.1 4.1 out of 5 stars (457) |
| Date First Available | August 4, 2020 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 4.6 ounces |
| Item model number | UE MegaBoom, S-00147 |
| Manufacturer | Cameron Sino(HENZENS) |
| Product Dimensions | 3.07 x 1.48 x 0.74 inches |

## Product Details

- **Battery Capacity:** 3400 Milliamp Hours
- **Battery Cell Composition:** Lithium Ion
- **Brand:** CS BATTERY
- **Number of Batteries:** 1 Lithium Ion batteries required. (included)
- **Unit Count:** 1.0 Count

## Images

![- Replacement Battery for Logitech UE MegaBoom Compatible with S-00147 984-001362 084-000845 Ultimate Ears Megaboom 3 Megaboom 3 S-00171 fits Part No Logitech 533-000116, 533-000138,7.4V Li-ion - Image 1](https://m.media-amazon.com/images/I/81dPU9CHryL.jpg)

## Questions & Answers

**Q: Does this fit the original mega boom**
A: Dear friend, thank you for the inquiry, the battry fits your speaker(Mega Boom), you can buy with confidence. BXT-FOCUS

**Q: Will this battery has an overcharge protection I notice That stops charging when is fully charged**
A: yes it has charging protection

**Q: Will this also work with 553-000146**
A: The battery is not suitable for 553-000146.

**Q: Is the megaboom 3 still water submersible following battery replacement?**
A: dear we do not support this

## Customer Reviews

### ⭐⭐⭐⭐⭐ Mega boom battery.
*by T***E on July 30, 2025*

It was easy to install and charged up just fine. Used my speaker and played for at least ten hours and had 30% left. Charged battery and put the speaker up for another day. The tool broke due to not understanding how the cover is released to access the battery. Managed to get the cover up to change the battery without breaking it. Side note watch videos to get a feel of how to release the cover.

### ⭐⭐⭐⭐⭐ Reliable Replacement Battery for Logitech UE MegaBoom 3
*by G***S on March 25, 2024*

When my UE MegaBoom 3 speaker needed a new battery and the OEM option was nowhere to be found, I turned to this replacement battery. Despite being slightly larger in capacity than the original (3130mAH/22.5Wh 7.2V vs 3400mAh/25.16Wh 7.4V), it fit seamlessly and worked without any issues. After three months of usage, I can confidently say that this replacement battery does the job well. It holds a charge effectively, keeping my speaker running for extended periods without trouble. One crucial tip for users is to perform a calibration when installing the new battery. Charging it to 100%, allowing it to discharge completely, then leaving it plugged in overnight ensures accurate battery percentage detection by the speaker's circuitry. It was super easy to dissamble the speaker just be careful with the gasket, and forget about putting your speaker in the water after this replacement, at least I wont even try to do it. Overall, I'm satisfied with the performance of this replacement battery. It may not be identical to the OEM option, but it gets the job done reliably, keeping my UE MegaBoom up and running for extended listening sessions.

### ⭐ BEWARE! DO NOT BUY!!!!
*by K***O on October 5, 2025*

I didn’t want to leave a 1 star review without giving the seller the opportunity to correct my issue. I bought the replacement battery. After installing it, charging for 24 hours (with the power off) it only charged 50%. I contacted the seller. Then continued to charge the speaker (with the power off) for another 24 hours and the strangest thing happened, it dropped to 40% charged. I reached out to the seller again and 3 days later they still did not respond. It is not easy to open the speaker to replace the battery, but when you do, you expect that the battery will work. DO NOT BUY THIS BATTERY! NOT ONLY IS IT NO GOOD BUT THE SELLER IS COMPLETELY NON-RESPONSIVE! I WILL BE RETURNING!

## Frequently Bought Together

- Replacement Battery for Logitech UE MegaBoom Compatible with S-00147 984-001362 084-000845 Ultimate Ears Megaboom 3 Megaboom 3 S-00171 fits Part No Logitech 533-000116, 533-000138,7.4V Li-ion
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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-16*