---
product_id: 542067584
title: "DC 3.7V 8200mah 7565121 Rechargeable Lithium Polymer Battery, Suitable for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement and LED Lights"
brand: "hxjnldc"
price: "€ 72.16"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/542067584-dc-3-7v-8200mah-7565121-rechargeable-lithium-polymer-battery-suitable
store_origin: NL
region: Netherlands
---

# 5A max current output 8200mAh high capacity Built-in multi-protection IC DC 3.7V 8200mah 7565121 Rechargeable Lithium Polymer Battery, Suitable for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement and LED Lights

**Brand:** hxjnldc
**Price:** € 72.16
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your passion with precision and protection!

## Quick Answers

- **What is this?** DC 3.7V 8200mah 7565121 Rechargeable Lithium Polymer Battery, Suitable for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement and LED Lights by hxjnldc
- **How much does it cost?** € 72.16 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/542067584-dc-3-7v-8200mah-7565121-rechargeable-lithium-polymer-battery-suitable)

## Best For

- hxjnldc enthusiasts

## Why This Product

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

## Key Features

- • **Advanced Safety Tech:** Integrated Japanese Seiko IC protects against overcharge, overdischarge, and short circuits.
- • **Massive 8200mAh Power:** Keep your DIY projects running longer with industry-leading battery capacity.
- • **Slim & Lightweight Design:** Compact 122×65×7.5mm size and just 137g—powerful yet portable for any project.
- • **Universal DIY Compatibility:** Perfect fit for 3.7-5V electronics with easy 2-wire JST connector for hassle-free installation.
- • **Reliable 5A Current Delivery:** Supports stable power flow for smooth device performance without hiccups.

## Overview

This rechargeable 3.7V lithium polymer battery delivers a robust 8200mAh capacity and 5A max current, ideal for DIY electronics operating between 3.7-5V. Featuring a compact form factor and built-in Japanese Seiko IC for comprehensive overcharge, overdischarge, and short circuit protection, it ensures safe, reliable power. The included 2-wire JST connector simplifies installation, making it a go-to choice for professional-grade DIY projects.

## Description

Full description not available

## Features

- This battery is suitable for DIY electronic products with 3.7-5V and less than 30.34Wh 8200mAh built-in 2-wire battery replacement.（★ Not applicable to high-power electric tools and model aircraft）
- Please note that the specifications and polarity of the connector are based on the product display image,★the red wire is the positive "+" and the black wire is the negative "-"，Do not reverse-charge or reverse-connectreverse. ★The primary battery of some products has no plug or mismatched plug or mismatched polarity. It doesn't matter, you can cut and solder the plug directly or use our heat shrinkable insulating sleeve to connect the same color wire.
- 7565121 rechargeable lithium ion polymer battery, nominal voltage 3.7V, full charge voltage 4.2V, capacity 8200mAh, power 30.34Wh, ★size 122×65×7.5mm(4.803×2.559×0.295inch）(L*W*T), Weight:136.8g(4.825oz)，Maximum current:5A。 It can prevent overcharge, overdischarge, overcurrent, and short circuit.
- It‘s consists of of large-capacity A+ lithium battery, Japanese Seiko IC overcharge and overcurrent short circuit protection board, 3302-20 high temperature resistant silicone cable, and genuine JST Pitch 2.0mm ★2 wire connector module.
- If there are any quality issues within a year, ★please feel free to contact us via email for replacement.

## Product Details

- **Number of batteries:** 1 Lithium Polymer batteries required. (included)
- **Brand:** HXJNLDC
- **Battery cell composition:** Lithium Polymer
- **Battery capacity:** 8200 Milliamp Hours
- **Recommended uses for product:** Camera,Radio,Robot,Speaker,Speakers,Toys,Watch

## Images

![DC 3.7V 8200mah 7565121 Rechargeable Lithium Polymer Battery, Suitable for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement and LED Lights - Image 1](https://m.media-amazon.com/images/I/61SGAiFSV9L.jpg)
![DC 3.7V 8200mah 7565121 Rechargeable Lithium Polymer Battery, Suitable for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement and LED Lights - Image 2](https://m.media-amazon.com/images/I/619xcKOgCyL.jpg)
![DC 3.7V 8200mah 7565121 Rechargeable Lithium Polymer Battery, Suitable for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement and LED Lights - Image 3](https://m.media-amazon.com/images/I/81jSmvePDIL.jpg)
![DC 3.7V 8200mah 7565121 Rechargeable Lithium Polymer Battery, Suitable for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement and LED Lights - Image 4](https://m.media-amazon.com/images/I/81ygEeonPJL.jpg)
![DC 3.7V 8200mah 7565121 Rechargeable Lithium Polymer Battery, Suitable for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement and LED Lights - Image 5](https://m.media-amazon.com/images/I/61tj3DonNaL.jpg)

## Available Options

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

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-12*