---
product_id: 458959076
title: "2S 7.4V 8.4V 8A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell (8pcs)"
brand: "aceirmc"
price: "C$2628"
currency: NIO
in_stock: true
url: https://www.desertcart.ni/products/458959076-2s-7-4v-8-4v-8a-18650-charger-pcb-bms
store_origin: NI
region: Nicaragua
---

# 8A max continuous current Precise 4.28V overcharge cutoff 4-layer safety protection 2S 7.4V 8.4V 8A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell (8pcs)

**Brand:** aceirmc
**Price:** C$2628
**Availability:** ✅ In Stock

## Summary

> 🛠️ Charge smart, protect smarter — power your gear with confidence!

## Quick Answers

- **What is this?** 2S 7.4V 8.4V 8A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell (8pcs) by aceirmc
- **How much does it cost?** C$2628 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/458959076-2s-7-4v-8-4v-8a-18650-charger-pcb-bms)

## 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

- • **Quadruple Safety Shield:** Integrated overcharge, overdischarge, short circuit, and overcurrent protections ensure ultimate device security.
- • **Ultra-Low Standby Drain:** Consumes less than 10μA in standby mode, preserving battery life when idle.
- • **Versatile Compatibility:** Fits various 3.7V lithium battery packs including massagers, solar street lights, LED backups, and monitoring systems.
- • **Precision Voltage Control:** Engineered with ±0.05V accuracy for overcharge (4.28V) and overdischarge (2.9V) protection, maximizing battery lifespan.
- • **Powerful 8A Current Handling:** Supports high-demand devices with up to 8A continuous and 16A peak current for reliable performance.

## Overview

This 2S 7.4V/8.4V 8A BMS protection board offers precision voltage detection and robust safety features including overcharge, overdischarge, short circuit, and overcurrent protection. Designed for 3.7V lithium battery packs, it supports up to 8A continuous current with ultra-low standby consumption, ensuring long-lasting, reliable power management for a variety of professional and consumer electronics.

## Description

Features:Overcharge release voltage: 4.28V+/-0.05V.Overdischarge detection voltage: 2.9V+/-0.05V.Upper operating current: 8A.Upper instantaneous current: 16A.Static current: less than 10uA.Charge voltage: 8.4V-9V.Size: 41x8x2.2mm.Packing included:2PCS.Main function:Overcharge protection, over discharge protection, short circuit protection, overcurrent protection.The described power range is applicable to the following products: massager battery pack, LED lamp standby power supply, 12V electronic products, solar street lamp battery pack, monitoring standby power supply, and other products.Wiring:B+ : Connect to battery positive.B- : Connect to battery negative.MB: Connection point between battery 1 and battery 2.P+: Positive pole for charging/discharging (common at charging/discharging end).P- : Negative pole for charging/discharging end (common at charging/discharging end).Tips: When assembling the battery pack, the battery voltage, capacity and internal resistance shall be matched. The battery voltage shall be appropriate at about 3.7v of rated voltage. If there is no output after assembling the battery pack, it can be charged at 8.4v voltage.

## Features

- HIGH-ACCURACY, HIGHLY DURABLE: High-accuracy voltage detection circuit, fine workmanship and durable, Effective life greater than 50000 hours.
- 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.
- Over-discharge protection, overcurrent protection, overcharge protection, short circuit protection; A combination of 4 safety features that work together to provide ultimate protection for your devices.
- MOS transistor can control the battery charge and discharge, low standby current consumption.
- ATTENTION: Strictly according to the diagram wiring: B+: Battery V+ Positive, B-: Battery V- Negative, P+: Output / Charging V+, P-: Output / Charging V-, MB: The connection point between the batteries.Otherwise it will cause damage to the chip. Do not mix the good battery and poor battery to use. The internal resistance of 3 battery capacity are closer will be better.

## Product Details

- **Brand:** ACEIRMC
- **Colour:** 8pcs
- **Product dimensions:** 2D x 41W x 2H millimeters
- **Item weight:** 0.01 Kilograms
- **Output voltage:** 8.4 Volts (DC)

## Images

![2S 7.4V 8.4V 8A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell (8pcs) - Image 1](https://m.media-amazon.com/images/I/712nBYZ1qtL.jpg)
![2S 7.4V 8.4V 8A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell (8pcs) - Image 2](https://m.media-amazon.com/images/I/51N3v51gNtL.jpg)
![2S 7.4V 8.4V 8A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell (8pcs) - Image 3](https://m.media-amazon.com/images/I/5115ZE2767L.jpg)
![2S 7.4V 8.4V 8A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell (8pcs) - Image 4](https://m.media-amazon.com/images/I/51QxDyr4PqL.jpg)
![2S 7.4V 8.4V 8A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell (8pcs) - Image 5](https://m.media-amazon.com/images/I/51+qMhzfXCL.jpg)

## Frequently Bought Together

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-01-31*