---
product_id: 576999661
title: "Button Top 18650 Rechargeable Battery 9900mAh High Capacity 3.7 Volt Rechargeable Battery for Headlamp, Flashlight 241018 (Button Top, 4 Pack)"
brand: "cwuu"
price: "€ 40.47"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.pt/products/576999661-button-top-18650-rechargeable-battery-9900mah-high-capacity-3-7
store_origin: PT
region: Portugal
---

# 3.7V stable output 9900mAh capacity Eco-friendly solution Button Top 18650 Rechargeable Battery 9900mAh High Capacity 3.7 Volt Rechargeable Battery for Headlamp, Flashlight 241018 (Button Top, 4 Pack)

**Brand:** cwuu
**Price:** € 40.47
**Availability:** ✅ In Stock

## Summary

> 🔋 Power that lasts—join the rechargeable revolution!

## Quick Answers

- **What is this?** Button Top 18650 Rechargeable Battery 9900mAh High Capacity 3.7 Volt Rechargeable Battery for Headlamp, Flashlight 241018 (Button Top, 4 Pack) by cwuu
- **How much does it cost?** € 40.47 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/576999661-button-top-18650-rechargeable-battery-9900mah-high-capacity-3-7)

## Best For

- cwuu enthusiasts

## Why This Product

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

## Key Features

- • **Power Up Your Life:** Experience the freedom of long-lasting energy with our 9900mAh rechargeable battery.
- • **Eco-Conscious Choice:** Say goodbye to disposables and embrace a sustainable power solution.
- • **Consistent Energy Flow:** Enjoy reliable performance with a stable 3.7V output, even for high-drain devices.
- • **Versatile Compatibility:** Perfectly designed for flashlights, power banks, and more—never run out of power again!
- • **Durability Meets Performance:** Crafted for resilience, ensuring your devices stay powered through any adventure.

## Overview

The Button Top 18650 Rechargeable Battery offers a high capacity of 9900mAh and a stable 3.7V output, making it ideal for a variety of devices including flashlights and power banks. Designed for durability and eco-friendliness, this battery is a smart choice for those looking to reduce waste while enjoying reliable performance.

## Description

Full description not available

## Features

- Batteries Size - 67*18*18mm/2.64*0.7*0.7inch; it's a Rechargeable Battery BUTTON TOP, please check carefully before purchasing !!!).
- Versatile Compatibility: Designed to be compatible with a wide range of devices, our 3.7V 18650 battery is perfect for flashlights, power banks, and other gadgets. Say goodbye to disposable batteries with our rechargeable 18650 battery, offering cost-saving and eco-friendly power solutions.
- High Capacity: Our 18650 rechargeable battery boasts a generous capacity, ensuring long-lasting power for your devices.
- Durability: Crafted with quality materials, our 18650 battery offers durability and resilience, providing a dependable power source for your electronic
- Enhanced Performance: With a stable 3.7V output, our 18650 battery delivers consistent and reliable performance, ideal for high-drain applications

## Product Details

- **Number of Batteries:** 4 Lithium Ion batteries required.
- **Brand:** CWUU
- **Battery Cell Composition:** Lithium
- **Battery Capacity:** 3200 Milliamp Hours
- **Recommended Uses For Product:** Indoor

## Images

![Button Top 18650 Rechargeable Battery 9900mAh High Capacity 3.7 Volt Rechargeable Battery for Headlamp, Flashlight 241018 (Button Top, 4 Pack) - Image 1](https://m.media-amazon.com/images/I/61dKNyfPdxL.jpg)
![Button Top 18650 Rechargeable Battery 9900mAh High Capacity 3.7 Volt Rechargeable Battery for Headlamp, Flashlight 241018 (Button Top, 4 Pack) - Image 2](https://m.media-amazon.com/images/I/61Irj+mf0ML.jpg)
![Button Top 18650 Rechargeable Battery 9900mAh High Capacity 3.7 Volt Rechargeable Battery for Headlamp, Flashlight 241018 (Button Top, 4 Pack) - Image 3](https://m.media-amazon.com/images/I/71vCh2VSE9L.jpg)
![Button Top 18650 Rechargeable Battery 9900mAh High Capacity 3.7 Volt Rechargeable Battery for Headlamp, Flashlight 241018 (Button Top, 4 Pack) - Image 4](https://m.media-amazon.com/images/I/71cguEGOMJL.jpg)
![Button Top 18650 Rechargeable Battery 9900mAh High Capacity 3.7 Volt Rechargeable Battery for Headlamp, Flashlight 241018 (Button Top, 4 Pack) - Image 5](https://m.media-amazon.com/images/I/71TMlecuh1L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great customer service
*by J***M on January 6, 2025*

1st package sent by Amazon was left outside, uncovered, during a rainstorm... In their paper packaging. Contacted customer service to return and they directly took care of it and replaced the product in 48h. Exceptional.The batteries are being used in a small solar project to teach the kids about the sun and electricity. Works great.

### ⭐⭐⭐⭐⭐ Woks Great
*by E***. on December 30, 2024*

I have not attempted to assess the performance of these batteries, though I have to wonder about the claimed 9900 mAh rating. That's a lot more than many of their competitors; maybe these use plutonium? The one aspect of these batteries which I have been able to test is their size. An unfortunate trend in battery technology seems to make them just a little bit bigger, as a means to increase capacity. The unfortunate part is that they sometimes do not fit well into devices for which they were purchased. Happily, these batteries fit well into everything I've tried.

### ⭐ 1289 through 1291 mAh tested capacity.  They simply do not last long in a moderate drain flashlight!
*by R***R on January 22, 2025*

Yes. these appear to be batteries. They accept a charge. Now, they don't HOLD a charge for any reasonable time. Basically, these are extremely fraudulent batteries. While I wasn't expecting the advertised 9900mAh capacity, I was expecting something higher than the tested 1289 - 1291 mAh capacity that I observed. Do NOT buy these. While they are priced appropriately, you get what you pay for!

## Frequently Bought Together

- CWUU Button Top 18650 Rechargeable Battery 9900mAh High Capacity 3.7 Volt Rechargeable Battery for Headlamp, Flashlight 241018 (Button Top, 4 Pack)
- POWXS LCD Universal 18650 Battery Charger for 3.7V Li-ion Rechargeable Battery 18650 18490 18350 17670 17500 16340(RCR123) 14500 Lithium Batteries and Ni-MH Ni-CD Rechargeable AA AAA Batteries

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**Shop now:** [https://www.desertcart.pt/products/576999661-button-top-18650-rechargeable-battery-9900mah-high-capacity-3-7](https://www.desertcart.pt/products/576999661-button-top-18650-rechargeable-battery-9900mah-high-capacity-3-7)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-14*