---
product_id: 281485512
title: "3.7V 3000mAh Lithium Polymer Rechargeable Battery for ESP32 4pcs"
brand: "makerfocus"
price: "€ 50.21"
currency: EUR
in_stock: true
reviews_count: 9
category: "Maker Focus"
url: https://www.desertcart.pt/products/281485512-3-7v-3000mah-lithium-polymer-rechargeable-battery-for-esp32-4pcs
store_origin: PT
region: Portugal
---

# 1.5A max charge/discharge current 3000mAh high capacity Built-in multi-layer protection 3.7V 3000mAh Lithium Polymer Rechargeable Battery for ESP32 4pcs

**Brand:** makerfocus
**Price:** € 50.21
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your innovation with confidence and style!

## Quick Answers

- **What is this?** 3.7V 3000mAh Lithium Polymer Rechargeable Battery for ESP32 4pcs by makerfocus
- **How much does it cost?** € 50.21 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/281485512-3-7v-3000mah-lithium-polymer-rechargeable-battery-for-esp32-4pcs)

## Best For

- makerfocus enthusiasts

## Why This Product

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

## Key Features

- • **Ready for Makers:** Pre-applied insulating tape and consistent quality ensure hassle-free integration and peace of mind.
- • **Reliable Runtime:** Supports steady 0.6A current with bursts up to 1.5A, ideal for low-power and high-demand applications.
- • **Safe & Sound Charging:** Advanced overcharge, over-discharge, and short circuit protection keeps your battery and devices secure.
- • **Plug & Play Convenience:** JST 1.25 connector fits perfectly with ESP32 LoRa and Meshtastic boards—no adapters needed.
- • **Power Through Your Projects:** 3000mAh capacity delivers long-lasting energy for ESP32 and IoT devices.

## Overview

This 3.7V 3000mAh Lithium Polymer rechargeable battery pack includes 4 cells designed specifically for ESP32 development boards and similar IoT devices. Featuring a JST 1.25 plug for seamless compatibility, it supports a recommended charge/discharge current of 0.6A with a max of 1.5A. Built-in protection circuitry safeguards against overcharge, over-discharge, and short circuits, ensuring durability and safety in demanding maker projects.

## Description

desertcart.com: MakerFocus 3.7V 3000mAh Lithium Polymer Rechargeable Battery for ESP32 4pcs | 1S LiPo Battery, JST 1.25 Plug, Built-in Protection Board for Meshtastic Devices, ESP32 Development Board, Electronic Devices : Toys & Games

Review: Great battery for Bluetooth speaker projects - I'm using this in a Bluetooth speaker project and have amazing results with it lasting for over 5 days on standby and playing for well over 12 hours. I'm very impressed!
Review: Solid capacity and the JST connector fits perfectly for ESP32 projects - These 3000mAh LiPo batteries have worked well in several of my ESP32 and mesh networking projects. The JST 1.25 connector fits perfectly on the boards I use without needing an adapter. The capacity is as advertised and runtime on low-power IoT nodes has been solid. The protection board means I do not have to worry as much about over-discharge in the field. They come with the insulating tape already applied which is a nice touch. I have bought several packs now and quality has been consistent.

## Features

- Charging Method: The recommended charging current is 0.6A, the maximum does not exceed 1.5A. The discharge current is recommended 0.6A, and the maximum does not exceed 1.5A
- Overcharge Protection: When charging the battery, when the voltage reaches the highest battery voltage (4.2V), the protection board will automatically power off and shut down, indicating that it will not continue to charge when fully charged, forms overcharge protection
- Over-discharge Protection: When the battery is about to run out and the voltage is as low as 3.0V, the protection board will also be turned off and can no longer be discharged, forming an over-discharge protection effect
- Short Circuit Protection: When an accidental short circuit occurs, the protection board will automatically shut down within a few milliseconds and will not be powered on again. Note that the cell is short-circuited (not through the protection board). The protection board will also fail due to continuous high current, or the components are heated and damaged
- Widely Application: With JST 1.25 plug, these lithium polymer batteries can be used for development board whose plug is SH1.25-2, such as ESP32 LoRa V3, ESP32 LoRa V4, Wireless Tracker, Mesh Node T114, Mesh Node T096 and electronic devices
- Note: The battery overcurrent protection is not a panacea, do not continue to charge and discharge the current and voltage with a large current beyond the range, otherwise the protection board will be damaged and invalid

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08T6GT7DV |
| Amperage | 1.5 A |
| Antenna Location | ESP32 Development Board Whose Plug is SH1.25-2, Electronic Devices, Meshtastic Devices |
| Battery Capacity | 3000 milliamp_hours |
| Battery Cell Composition | Lithium Polymer |
| Battery Cell Type | Lithium Polymer |
| Battery Weight | 185 g |
| Best Sellers Rank | #17,660 in Toys & Games ( See Top 100 in Toys & Games ) #17 in Hobby Remote & App Controlled Vehicle Batteries |
| Brand | MakerFocus |
| Customer Reviews | 4.6 out of 5 stars 383 Reviews |
| Item Weight | 180 g |
| Manufacturer | MakerFocus |
| Model Name | 3665-1-3000-1S |
| Model Number | 3665-1-3000-1S |
| Number of Batteries | 4 Lithium Polymer batteries required. |
| Recommended Uses For Product | ESP32 Development Board Whose Plug is SH1.25-2, Electronic Devices, Meshtastic Devices |
| Reusability | Rechargeable |
| Unit Count | 4 Count |
| Voltage | 3.7 volts |
| Warranty Description | No Warranty |

## Product Details

- **Battery Capacity:** 3000 Milliamp Hours
- **Battery Cell Composition:** Lithium Polymer
- **Brand:** MakerFocus
- **Number of Batteries:** 4 Lithium Polymer batteries required.
- **Recommended Uses For Product:** ESP32 Development Board Whose Plug is SH1.25-2, Electronic Devices, Mesh Node T114

## Images

![3.7V 3000mAh Lithium Polymer Rechargeable Battery for ESP32 4pcs - Image 1](https://m.media-amazon.com/images/I/71Nulac2HvL.jpg)

## Available Options

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

## Questions & Answers

**Q: What are the dimensions of the pack?**
A: Dimensions(±2mm): 112 * 65 *8.8mm / 4.41 * 2.56 * 0.35inch(L*W*H)

**Q: is this compatible with rp2040 devices like the pico?**
A: Not 100% sure. I think you can use the battery and run the Pico on a breadboard, if that is what you were thinking. The RP runs off of 3.3Volts, so it is close enough. If you want to be safe you can use a TP4056. They are cheap enough.

**Q: Can this battery be safely charged with a TP4056?**
A: Hi, yes, it could be charged by TP4056.

**Q: Can I charge it with your charging board?**
A: Hi friend, you can use it can be matched with ESP32 Development Board WIFI Kits for Arduino Nodemcu, you could see the picture 4 on the listing.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great battery for Bluetooth speaker projects
*by W***G on June 28, 2026*

I'm using this in a Bluetooth speaker project and have amazing results with it lasting for over 5 days on standby and playing for well over 12 hours. I'm very impressed!

### ⭐⭐⭐⭐⭐ Solid capacity and the JST connector fits perfectly for ESP32 projects
*by G***S on May 5, 2026*

These 3000mAh LiPo batteries have worked well in several of my ESP32 and mesh networking projects. The JST 1.25 connector fits perfectly on the boards I use without needing an adapter. The capacity is as advertised and runtime on low-power IoT nodes has been solid. The protection board means I do not have to worry as much about over-discharge in the field. They come with the insulating tape already applied which is a nice touch. I have bought several packs now and quality has been consistent.

### ⭐⭐⭐⭐⭐ They work
*by G***O on March 22, 2026*

No complaints. They seem to work fine. I think the connector could be improved but that's not the battery's fault, that's an industry standard that needs to change.

## Frequently Bought Together

- MakerFocus 4pcs 3.7V 3000mAh Lithium Rechargeable Battery 1S 1C LiPo Battery with Protection Board Insulated Rubber Tape and Micro JST 1.25 Plug for Arduino ESP32 Development Board
- RAKwireless WisBlock Meshtastic Starter Kit US915 Base RAK19007 + Core RAK4631
- 915MHz LoRa Antenna Indoor 3dBi Gain Omni SMA Male + IPEX Cable 2 Pcs

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**Shop now:** [https://www.desertcart.pt/products/281485512-3-7v-3000mah-lithium-polymer-rechargeable-battery-for-esp32-4pcs](https://www.desertcart.pt/products/281485512-3-7v-3000mah-lithium-polymer-rechargeable-battery-for-esp32-4pcs)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-10-09*