---
product_id: 244677950
title: "Replacement Battery for Fenix 3,Fenix 3 HR, fits Part Number 361-00034-02,3.7V Li-Polymer 300mAh/1.1Wh…"
brand: "cs battery"
price: "$5.55"
currency: USD
in_stock: true
reviews_count: 4
url: https://www.desertcart.ec/products/244677950-replacement-battery-for-fenix-3-fenix-3-hr-fits-part
store_origin: EC
region: Ecuador
---

# 3.7V power CE certified 300mAh capacity Replacement Battery for Fenix 3,Fenix 3 HR, fits Part Number 361-00034-02,3.7V Li-Polymer 300mAh/1.1Wh…

**Brand:** cs battery
**Price:** $5.55
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Up Your Adventures!

## Quick Answers

- **What is this?** Replacement Battery for Fenix 3,Fenix 3 HR, fits Part Number 361-00034-02,3.7V Li-Polymer 300mAh/1.1Wh… by cs battery
- **How much does it cost?** $5.55 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/244677950-replacement-battery-for-fenix-3-fenix-3-hr-fits-part)

## 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

- • **Safety First:** CE certified for peace of mind during your outdoor escapades.
- • **Easy Installation:** Quick swap to get back to your adventures in no time!
- • **Seamless Compatibility:** Designed for Fenix 3 and Fenix 3 HR, ensuring a perfect fit.
- • **Long-lasting Performance:** 300mAh capacity for extended usage without interruptions.
- • **Unleash Your Fenix Potential:** Elevate your adventures with a reliable power source.

## Overview

This replacement battery is specifically designed for the Fenix 3 and Fenix 3 HR models, featuring a 300mAh capacity and 3.7V output. It is CE certified for safety and ensures seamless compatibility, making it the perfect choice for outdoor enthusiasts who demand reliability and performance.

## Description

Category:  Cordless Tools battery Compatible Battery Part Number: 8200 8220 8300 B812-01 B812-02 B812-03 Battery advantage No memory effect, can be charged and discharged on demand without loss of capacity. The battery is made of high-quality imported super cells, which are safer to use. Low self-discharge rate for maximum productivity and less downtime. Precautions It is strictly forbidden to over-discharge, squeeze, incinerate or heat the battery Do not short circuit; Do not directly weld on the surface of the battery It is strictly forbidden to use or heat outside the allowable temperature range It is forbidden to disassemble the inside of the battery by yourself When the battery is used to the end voltage, it should be taken out of the instrument in time Please strictly abide by the above precautions to avoid improper operation and use of the battery, which may cause battery swelling, leakage or even explosion

## Features

- 🔋【Perfectly compatible Cordless Tools】DREMEL 8200, 8220, 8300.
- 🔋【Perfectly compatible Cordless Tools】Part Number:B812-01, B812-02, B812-03.
- 🔋【Battery Specifications】Voltage: 10.8V, Type: Li-ion, Capacity: 5000mAh/111.00Wh.
- 🔋The battery is made of imported super cells, with larger capacity and longer life. It has passed CE certification and is more secure.
- 🔋Please confirm whether your original battery part number or machine model is correct before purchasing. If you are not sure, you can contact customer service to confirm.

## Product Details

- **Number of Batteries:** 1 Lithium Polymer batteries required. (included)
- **Brand:** CS BATTERY
- **Battery Cell Composition:** Lithium Polymer
- **Battery Capacity:** 300 Milliamp Hours
- **Recommended Uses For Product:** Watch

## Images

![Replacement Battery for Fenix 3,Fenix 3 HR, fits Part Number 361-00034-02,3.7V Li-Polymer 300mAh/1.1Wh… - Image 1](https://m.media-amazon.com/images/I/715mWJF5SKL.jpg)
![Replacement Battery for Fenix 3,Fenix 3 HR, fits Part Number 361-00034-02,3.7V Li-Polymer 300mAh/1.1Wh… - Image 2](https://m.media-amazon.com/images/I/711QsjU7oiL.jpg)
![Replacement Battery for Fenix 3,Fenix 3 HR, fits Part Number 361-00034-02,3.7V Li-Polymer 300mAh/1.1Wh… - Image 3](https://m.media-amazon.com/images/I/61dxiwPPX5L.jpg)
![Replacement Battery for Fenix 3,Fenix 3 HR, fits Part Number 361-00034-02,3.7V Li-Polymer 300mAh/1.1Wh… - Image 4](https://m.media-amazon.com/images/I/41rFNsRIBKL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent product!
*by K***D on October 13, 2021*

Just as described and works great!

### ⭐ NOT for Fenix 3– wrong size, wrong specs
*by H***Y on September 21, 2021*

The Fenix 3 OEM battery is a 3.7v 290mAh 1.08WhThis battery is bigger in size, it is not the right fit. It is 3.7VDC 300mAh 1.11Wh. My Fenix 3 Sapphire wouldn’t even turn on with it installed.The item description on this listing is inaccurate, the battery will not work or even fit properly in a Fenix 3.See attached photo for comparison to OEM battery.

### ⭐ Won’t hold charge for more than 24 hours
*by M***. on October 5, 2021*

I’ve used this battery fir a Garmin Fénix 3HR watch and it doesn’t hold the charge for more than 24 hours… this watches are known for holding a single charge for days. I’ve made the complaint and they sent me a new battery, but unfortunately same result.

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**Shop now:** [https://www.desertcart.ec/products/244677950-replacement-battery-for-fenix-3-fenix-3-hr-fits-part](https://www.desertcart.ec/products/244677950-replacement-battery-for-fenix-3-fenix-3-hr-fits-part)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-09*