---
product_id: 207309953
title: "3.7V 40mAh 301020 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with PH2.0mm JST Connector"
brand: "akzytue"
price: "€ 9.51"
currency: EUR
in_stock: true
reviews_count: 13
category: "Akzytue"
url: https://www.desertcart.ie/products/207309953-3-7v-40mah-301020-lipo-battery-rechargeable-lithium-polymer-ion
store_origin: IE
region: Ireland
---

# 40mAh precise capacity 3.7V stable voltage PH2.0mm JST connector 3.7V 40mAh 301020 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with PH2.0mm JST Connector

**Brand:** akzytue
**Price:** € 9.51
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your essentials with precision and style!

## Quick Answers

- **What is this?** 3.7V 40mAh 301020 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with PH2.0mm JST Connector by akzytue
- **How much does it cost?** € 9.51 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/207309953-3-7v-40mah-301020-lipo-battery-rechargeable-lithium-polymer-ion)

## Best For

- akzytue enthusiasts

## Why This Product

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

## Key Features

- • **Reliable Voltage:** Consistent 3.7V output ensures smooth device performance
- • **Compact Powerhouse:** Ultra-slim 3x10x22mm size fits tight spaces seamlessly
- • **Lightweight Design:** At just 2g, it adds minimal bulk to your tech
- • **Tailored Connectivity:** Exclusive PH2.0mm JST connector for perfect device compatibility
- • **Versatile Applications:** Ideal for MP3 players, smartwatches, VR glasses, and more—keep your essentials powered

## Overview

The AKZYTUE 3.7V 40mAh 301020 Lithium Polymer battery pack features a compact 3x10x22mm form factor and a PH2.0mm JST connector, delivering reliable voltage for low-drain electronics like smartwatches, Bluetooth headsets, and portable monitors. Lightweight and rechargeable, it’s engineered for safe, consistent performance in specialized devices requiring precise power management.

## Description

desertcart.com: AKZYTUE 3.7V 40mAh 301020 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with PH2.0mm JST Connector : Health & Household

Review: Revived a Digital Magnifier with same battery - This was a random purchase but it ended up working! My mom had an old electronic magnifier that used this model battery and she was sad when it stopped holding a charge. I opened it up, ordered this battery, and one spicy pillow swapped out later, it must have been a perfect match for voltage, capacity, and type because her device works again and holds a nice long charge.
Review: Good Battery, Just Make Sure You Use a BMS - The battery works well and provides the expected 3.7 Volts output, but you definitely need a BMS (battery management system) to safely charge and recharge it. Once set up properly, it’s a solid LiPo pack for electronics projects and good value for the money.

## Features

- WARNING: The batteries connectors type are all JST PH2.0MM . —THE CONNECTORS ARE NOT UNIVERSAL! ! !— Please make sure that the CONNECTOR TYPE, POLARITY , and BATTERY SIZE match your device before purchasing. —If the POLARITY of the connector DOES NOT MATCH that of your device, it will DAMAGE the device or the new battery.—
- Voltage: 3.7volt; Capacity: 40mAh；Maximum Charge Voltage/Current: 4.25V/20mAh; Material: Lithium Polymer.
- Connector Type: PH 2.0mm；Size: 3x 10 x 22mm / 0.12" x 0.39" x 0.87"(T*W*L); Cable Length: 5cm / 2"; Net Weight: 2g.
- NOTE: The 3.7V 40mAh 301020 Lithium Battery is NON-POWER BATTERY! ! ! It can not be used for power device that require high current such as UAV, mini RC Helicopter,RC small drones， Model aircraft , Electric toys, Power tools and other.
- Application：Suitable for MP3/MP4, Bluetooth wireless headset,GPS, baby monitor, game boy, skybell ,smart watch,monitoring units, POS machine, dashcam, mobile power, Bluetooth speaker, VR glasses, beauty devices, pet tracker,ring video doorbell etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07TWHGHW4 |
| Batteries | 1 Lithium Ion batteries required. |
| Best Sellers Rank | #32,932 in Health & Household ( See Top 100 in Health & Household ) #6 in 3.7V Batteries |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,411) |
| Date First Available | July 2, 2019 |
| Item Weight | 0.634 ounces |
| Item model number | 301020 |
| Manufacturer | AKZYTUE |
| Package Dimensions | 3.5 x 2.3 x 0.2 inches |

## Product Details

- **Battery Capacity:** 40 Milliamp Hours
- **Battery Cell Composition:** Lithium
- **Brand:** AKZYTUE
- **Number of Batteries:** 1 Lithium Ion batteries required.
- **Recommended Uses For Product:** GPS

## Images

![3.7V 40mAh 301020 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with PH2.0mm JST Connector - Image 1](https://m.media-amazon.com/images/I/41mRrsl3-8L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Revived a Digital Magnifier with same battery
*by N***R on January 15, 2026*

This was a random purchase but it ended up working! My mom had an old electronic magnifier that used this model battery and she was sad when it stopped holding a charge. I opened it up, ordered this battery, and one spicy pillow swapped out later, it must have been a perfect match for voltage, capacity, and type because her device works again and holds a nice long charge.

### ⭐⭐⭐⭐⭐ Good Battery, Just Make Sure You Use a BMS
*by T***S on December 1, 2025*

The battery works well and provides the expected 3.7 Volts output, but you definitely need a BMS (battery management system) to safely charge and recharge it. Once set up properly, it’s a solid LiPo pack for electronics projects and good value for the money.

### ⭐⭐⭐⭐ Work well
*by K***T on January 2, 2026*

I bought this battery for my son's walkie talkie. However, the connection did not fit. My husband had to cut the connection from the old battery and remove the connection from the new battery and place the old battery's connection onto it. It worked perfectly afterwards. It was the right size and it functions well. It keeps good charge.

## Frequently Bought Together

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-19*