---
product_id: 459368354
title: "6PCS 2S 7.4V 8.4V 8A 18650 Battery Protection Board PCB BMS Protection Module for Li-ion Lithium Battery Cell"
brand: "daier"
price: "2563 kr"
currency: ISK
in_stock: true
reviews_count: 4
url: https://www.desertcart.is/products/459368354-6pcs-2s-7-4v-8-4v-8a-18650-battery-protection
store_origin: IS
region: Iceland
---

# 16A Instant Current 8A Max Current 4 Safety Protections 6PCS 2S 7.4V 8.4V 8A 18650 Battery Protection Board PCB BMS Protection Module for Li-ion Lithium Battery Cell

**Brand:** daier
**Price:** 2563 kr
**Availability:** ✅ In Stock

## Summary

> 🔒 Protect Your Power with Confidence!

## Quick Answers

- **What is this?** 6PCS 2S 7.4V 8.4V 8A 18650 Battery Protection Board PCB BMS Protection Module for Li-ion Lithium Battery Cell by daier
- **How much does it cost?** 2563 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/459368354-6pcs-2s-7-4v-8-4v-8a-18650-battery-protection)

## Best For

- daier enthusiasts

## Why This Product

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

## Key Features

- • **Bulk Value:** Get 10PCS in one package, ensuring you have enough protection boards for all your projects.
- • **Ultimate Safety:** Experience peace of mind with over-discharge, overcurrent, overcharge, and short circuit protection.
- • **High Performance:** Handles up to 8A continuous and 16A instantaneous current for robust power delivery.
- • **User-Friendly Design:** Follow simple wiring instructions to ensure optimal performance and avoid damage.
- • **Versatile Compatibility:** Perfect for a variety of applications including massagers, LED lights, and solar street lights.

## Overview

This 6PCS 2S 7.4V 8.4V 8A Battery Protection Board PCB BMS module is designed for lithium-ion batteries, offering multiple safety features and compatibility with various applications. With a maximum working current of 8A and instantaneous current of 16A, it ensures reliable performance while safeguarding your devices.

## Description

Specifications: Charging Voltage: 8.4V Overcharge Voltage Range: 4.28V plus or minus 0.05V Overpressure Voltage Range: 2.3V-2.9V plus or minus 0.05V Upper Limit Operating Current: 8A Upper Limit Instantaneous Current: 16A Quiescent Current: less than 30uA Size: 41mm x 8mm x 2.2mm/ 1.61″ ×0.31″×0.09″(L x W x H) Overcharge protection, over discharge protection, short circuit protection, overcurrent protection.  Welding Point Description: B + battery anode; B - connect battery negative terminal; MMB connect battery 1 to battery 2; P + charging/discharge correct poles (charging end/discharge end sharing); P - charging/discharge terminal negative terminal (charging end/discharge end sharing).  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).   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.  Tips: the product must be connected to a 8.4V charging voltage through p+ and p- before it will create voltage on pads.Or you can activate this BMS by momentarily shorting b- and p-.

## Features

- Overcharging Range: 4.25 ± 0.05V to 4.35V; Over Voltage Range: 2.3 ± 0.05V to 3.0V; Maximum working current: 8A; Maximum instantaneous current: 16A.
- Useful: 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.
- 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 for your devices.
- 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.
- Package Includes:10PCS 2S 7.4V 8.4V 8A Lithium Battery Protection Board.

## Product Details

- **Brand:** daier
- **Color:** blue
- **Item Weight:** 0.01 Kilograms
- **Input Voltage:** 8.4 Volts
- **Output Voltage:** 8.4 Volts (DC)

## Images

![6PCS 2S 7.4V 8.4V 8A 18650 Battery Protection Board PCB BMS Protection Module for Li-ion Lithium Battery Cell - Image 1](https://m.media-amazon.com/images/I/81a063MN4BL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good
*by A***S on July 16, 2025*

Good product for the price, excellent seller, fast shipping and delivery, 100% recommended seller and product

### ⭐⭐⭐⭐⭐ Very small and good value
*by L***T on January 7, 2024*

I built a few 7.8V 2S1P packs from salvaged chromebook batteries. Seem to work fine for the low power usage. Very small and easyto package.

### ⭐⭐⭐⭐⭐ Seems to work
*by L***N on August 2, 2023*

Nothing has burned down or shorted, so I am guessing they work.

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**Shop now:** [https://www.desertcart.is/products/459368354-6pcs-2s-7-4v-8-4v-8a-18650-battery-protection](https://www.desertcart.is/products/459368354-6pcs-2s-7-4v-8-4v-8a-18650-battery-protection)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-28*