---
product_id: 654775656
title: "DC 3.7V 1500mAh 103443 Rechargeable Polymer Lithium Battery for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement, Mobile Energy Storage Power Supply"
brand: "hxjnldc"
price: "€ 29.73"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/654775656-dc-3-7v-1500mah-103443-rechargeable-polymer-lithium-battery-diy
store_origin: FI
region: Finland
---

# 3.7V nominal voltage 1500mAh capacity Overcharge protection DC 3.7V 1500mAh 103443 Rechargeable Polymer Lithium Battery for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement, Mobile Energy Storage Power Supply

**Brand:** hxjnldc
**Price:** € 29.73
**Availability:** ✅ In Stock

## Summary

> 🔧 Power Your Passion with Precision!

## Quick Answers

- **What is this?** DC 3.7V 1500mAh 103443 Rechargeable Polymer Lithium Battery for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement, Mobile Energy Storage Power Supply by hxjnldc
- **How much does it cost?** € 29.73 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/654775656-dc-3-7v-1500mah-103443-rechargeable-polymer-lithium-battery-diy)

## 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

- • **DIY Friendly:** Easily customize connections with heat shrinkable insulating sleeves for a perfect fit.
- • **Safety First:** Equipped with advanced protection against overcharge, overdischarge, and short circuits.
- • **Compact & Lightweight:** Designed to fit seamlessly into your projects at just 29g and 44x34x10mm.
- • **Power Up Your Projects:** Unleash the potential of your DIY electronics with a robust 1500mAh capacity.
- • **Versatile Compatibility:** Perfect for a range of devices from LED lights to Bluetooth headsets.

## Overview

The HXJNLDC DC 3.7V 1500mAh Rechargeable Polymer Lithium Battery is a versatile power supply designed for DIY electronic projects. With a nominal voltage of 3.7V and a capacity of 1500mAh, it supports a variety of devices while ensuring safety with built-in protection features. Compact and lightweight, this battery is perfect for powering everything from LED lights to Bluetooth headsets, making it an essential component for any tech enthusiast.

## Description

Sponsored Ad – DC 3.7V 1500mAh 103443 Rechargeable Polymer Lithium Battery for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement, Mobile Energy Storage Power Supply

## Features

- This battery is applicable to electronic products with DIY 3.7-5V less than 5.5Wh 1500mAh.（ 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）
- Please carefully compare the polarity of the connector before use,★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.
- 103443 rechargeable lithium ion polymer battery, nominal voltage 3.7V, full charge voltage 4.2V, capacity 1500mAh, power 5.5Wh, ★size 44×34×10mm(1.732×1.339×0.393inch）(L*W*T), Weight:29g(1.023oz)，Maximum current:1.5A。 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, 3302-24 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
- **Recommended uses for product:** Watch
- **Unit count:** 1.0 count

## Images

![DC 3.7V 1500mAh 103443 Rechargeable Polymer Lithium Battery for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement, Mobile Energy Storage Power Supply - Image 1](https://m.media-amazon.com/images/I/610kVKULvtL.jpg)

## Frequently Bought Together

- HXJNLDC DC 3.7V 1500mAh 103443 Rechargeable Polymer Lithium Battery for DIY 3.7-5V Electronic Product, Mobile Energy Storage Power Supply
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**Shop now:** [https://www.desertcart.fi/products/654775656-dc-3-7v-1500mah-103443-rechargeable-polymer-lithium-battery-diy](https://www.desertcart.fi/products/654775656-dc-3-7v-1500mah-103443-rechargeable-polymer-lithium-battery-diy)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-17*