---
product_id: 407081892
title: "12pcs 1S 3.7V 4A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell"
brand: "aceirmc"
price: "76 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/407081892-12pcs-1s-3-7v-4a-18650-charger-pcb-bms-protection
store_origin: PL
region: Poland
---

# 4A current 3.7V voltage 4 safety features 12pcs 1S 3.7V 4A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell

**Brand:** aceirmc
**Price:** 76 zł
**Availability:** ✅ In Stock

## Summary

> 🔌 Power Up Your Projects with Confidence!

## Quick Answers

- **What is this?** 12pcs 1S 3.7V 4A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell by aceirmc
- **How much does it cost?** 76 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/407081892-12pcs-1s-3-7v-4a-18650-charger-pcb-bms-protection)

## Best For

- aceirmc enthusiasts

## Why This Product

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

## Key Features

- • **Ultimate Safety:** Over-discharge, overcurrent, overcharge, and short circuit protection.
- • **Energy Efficient:** Low standby current for prolonged battery life.
- • **User-Friendly Setup:** Clear wiring instructions to prevent damage and ensure optimal function.
- • **Precision Engineering:** High-accuracy voltage detection for reliable performance.
- • **Versatile Applications:** Compatible with various 3.7V lithium battery shapes and capacities.

## Overview

The 12pcs 1S 3.7V 4A 18650 Charger PCB BMS Protection Board is designed for high-accuracy voltage detection and durability, boasting a lifespan of over 50,000 hours. It features multiple safety protections, low standby current, and is suitable for a wide range of applications, making it an essential component for any lithium battery setup.

## Description

12pcs 1S 3.7V 4A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell

## Features

- HIGH-ACCURACY, HIGHLY DURABLE: High-accuracy voltage detection circuit, fine workmanship and durable, Effective life greater than 50000 hours.
- MULTIPLE PROTECTION: Over-discharge protection, overcurrent protection, overcharge protection, short circuit protection; A combination of 4 safety features that work together to provide ultimate protection
- LOW STANDBY CURRENT: MOS transistor can control the battery charge and discharge, low standby current consumption.
- WIDELY APPLICATIONS: Use for variety of capacities and various shapes 3.7V lithium batteries,Massager battery pack, LED light backup power supply, solar street light battery pack, monitor standby power supply, etc.
- ATTENTION: Strictly according to the diagram wiring: B+: connected battery positive, B-: connect to battery negative, P+: connection charge / discharge positive, P- connection charge / discharge negative, Otherwise it will cause damage to the chip. After connection,it need to first charge activation, then will have the output.

## Product Details

- **Brand:** ACEIRMC
- **Color:** green black
- **Input Voltage:** 3.7 Volts
- **Output Voltage:** 4.2 Volts
- **Plug Format:** Type B

## Images

![12pcs 1S 3.7V 4A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell - Image 1](https://m.media-amazon.com/images/I/71Qbm+N-BnL.jpg)
![12pcs 1S 3.7V 4A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell - Image 2](https://m.media-amazon.com/images/I/51RWB30NlmL.jpg)
![12pcs 1S 3.7V 4A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell - Image 3](https://m.media-amazon.com/images/I/61ONI72d3vL.jpg)
![12pcs 1S 3.7V 4A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell - Image 4](https://m.media-amazon.com/images/I/61y9+NclZ2L.jpg)
![12pcs 1S 3.7V 4A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell - Image 5](https://m.media-amazon.com/images/I/71s04UHb1ZL.jpg)

## Frequently Bought Together

- ACEIRMC 12pcs 1S 3.7V 4A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell
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**Shop now:** [https://www.desertcart.pl/products/407081892-12pcs-1s-3-7v-4a-18650-charger-pcb-bms-protection](https://www.desertcart.pl/products/407081892-12pcs-1s-3-7v-4a-18650-charger-pcb-bms-protection)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-26*