---
product_id: 628301206
title: "DC 3.7V 4200mah 606090 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: "KD 9.16"
currency: KWD
in_stock: true
url: https://www.desertcart.com.kw/products/628301206-dc-3-7v-4200mah-606090-rechargeable-lithium-polymer-battery-suitable
store_origin: KW
region: Kuwait
---

# 3.7V nominal voltage 4200mAh capacity Overcharge protection DC 3.7V 4200mah 606090 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:** KD 9.16
**Availability:** ✅ In Stock

## Summary

> 🔧 Power your passion with precision!

## Quick Answers

- **What is this?** DC 3.7V 4200mah 606090 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?** KD 9.16 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/628301206-dc-3-7v-4200mah-606090-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

- • **Safety First:** Equipped with advanced protection against overcharge, overdischarge, and short circuits.
- • **Easy Installation:** Flexible wiring options allow for seamless integration into your projects.
- • **Compact & Lightweight:** Weighing only 2.963oz, it’s designed for portability without compromising power.
- • **Power Up Your Projects:** Unleash the potential of your DIY electronics with a robust 4200mAh battery!
- • **Versatile Compatibility:** Perfect for a range of devices: from Bluetooth headsets to e-books!

## Overview

The HXJNLDC DC 3.7V 4200mAh rechargeable lithium polymer battery is designed for DIY electronic projects requiring a reliable power source. With a nominal voltage of 3.7V and a capacity of 4200mAh, it supports devices under 15.54Wh. This battery features advanced safety mechanisms, a compact size, and is compatible with various electronic products, making it an ideal choice for tech enthusiasts.

## Description

DC 3.7V 4200mah 606090 Rechargeable Lithium Polymer Battery, Suitable for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement and LED Lights

## Features

- This battery is applicable to electronic products with DIY 3.7-5V less than 15.54Wh 4200mAh.（ mobile energy storage, power supply, LED light, wireless Bluetooth game headset, outdoor video and audio electronic scale, GPS Watch recorder, e-book, USB Fan tester, dash cam controller, mouse and keyboard）（★ Not applicable to high-power electric tools and model aircraft）
- ★606090 rechargeable lithium ion polymer battery, nominal voltage 3.7V, full charge voltage 4.2V, capacity 4200mAh, power 15.54Wh, size 3.543 x 2.362 x 0.236inch(90×60×6mm) (L*W*T), Weight:2.963oz(84g)，Maximum current:4A。 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, 3302-24 high temperature resistant silicone cable.
- ★The red wire is the positive electrode “+” and the black wire is the negative pole “-”。In some products, the original battery has no plug or the plug does not match. It doesn't matter. You can directly cut off the plug and weld it or use our heat shrinkable insulating sleeve to connect the wires of the same color.
- If there are any quality issues within a year, ★please feel free to contact us via email for replacement

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Dimensions | 3.54 x 2.36 x 0.24 inches |
| Item Weight | 80 Grams |
| Battery Weight | 75 Grams |
| Unit Count | 1.0 Count |
| Battery Cell Type | Lithium Polymer |
| Recommended Uses For Product | Camera,Digital,Radio,Watch |
| Reusability | Rechargeable |
| Battery Capacity | 4000 Milliamp Hours |
| Amperage | 4 Amps |
| Voltage | 3.7 Volts |

## Product Details

- **Number of batteries:** 1 Lithium Polymer batteries required. (included)
- **Brand:** HXJNLDC
- **Battery cell composition:** Lithium Polymer
- **Battery capacity:** 4200 Milliamp Hours
- **Recommended uses for product:** Protection

## Images

![DC 3.7V 4200mah 606090 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/61vCoJ7fMmL.jpg)

## Frequently Bought Together

- HXJNLDC DC 3.7V 4200mah 606090 Rechargeable Lithium Polymer Replacement Battery for DIY 3.7-5V Electronic Product, Mobile Energy Storage Power Supply.
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**Shop now:** [https://www.desertcart.com.kw/products/628301206-dc-3-7v-4200mah-606090-rechargeable-lithium-polymer-battery-suitable](https://www.desertcart.com.kw/products/628301206-dc-3-7v-4200mah-606090-rechargeable-lithium-polymer-battery-suitable)

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-01-22*