---
product_id: 431146660
title: "JZK 5PCS 2S 7.4V lithium battery protection board module, 7.4v 8.4V 2S BMS PCM Charge Discharge Protection Board for Li-Ion Lipo Battery 18650"
brand: "jzk"
price: "£10.31"
currency: GBP
in_stock: true
reviews_count: 13
category: "Jzk"
url: https://www.desertcart.co.uk/products/431146660-jzk-5pcs-2s-7-4v-lithium-battery-protection-board-module
store_origin: GB
region: United Kingdom
---

# 10A max peak current 50,000+ hour life cycle 3-stage over-current protection JZK 5PCS 2S 7.4V lithium battery protection board module, 7.4v 8.4V 2S BMS PCM Charge Discharge Protection Board for Li-Ion Lipo Battery 18650

**Brand:** jzk
**Price:** £10.31
**Availability:** ✅ In Stock

## Summary

> 🛠️ Power up with precision — protect your battery like a pro!

## Quick Answers

- **What is this?** JZK 5PCS 2S 7.4V lithium battery protection board module, 7.4v 8.4V 2S BMS PCM Charge Discharge Protection Board for Li-Ion Lipo Battery 18650 by jzk
- **How much does it cost?** £10.31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/431146660-jzk-5pcs-2s-7-4v-lithium-battery-protection-board-module)

## Best For

- jzk enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Versatile:** Slim 41x16x3.5mm design fits seamlessly into any 2S 7.4V Li-ion/LiPo battery setup.
- • **Long-lasting Durability:** Engineered for over 50,000 hours of operation, built to outlast your projects.
- • **Precision Voltage Guard:** High-accuracy voltage detection ensures your Li-ion batteries stay safe and efficient.
- • **Advanced Safety Circuitry:** Triple-stage over-current and short circuit protection keeps your battery pack secure.
- • **Powerful Current Handling:** Supports up to 10A peak current for reliable charge and discharge performance.

## Overview

The JZK 5PCS 2S 7.4V lithium battery protection board module offers robust charge and discharge management for 2S Li-ion/LiPo 18650 batteries. Featuring a high-precision voltage detection circuit, triple-stage over-current protection, and MOS transistor control, it supports up to 10A peak current with ultra-low standby current consumption. Compact and durable, it guarantees over 50,000 hours of reliable operation, making it an essential upgrade for any professional-grade battery pack.

## Description

Package includes: 5 x 18650 2S 8A Lithium Li-ion Battery Protection Card Descriptions: 1. High precision voltage detection circuit. 2. Charger terminal using high voltage device; 3. Built-in three-stage over-current detection circuit (over current 1, over current 2 or short circuit charge); 4. The MOS transistor can control the charging and discharging of the battery. 5. Low standby current consumption. Features: Overload Voltage: 4.25-4.35V ± 0.05V Upper Voltage: 2.5-3.0V ± 0.05V Max. Operating current: 8A. Max. Peak Current: 10A Operating current: 8.4 V - 9 V. Operating temperature: -40 ~ +50 °C. Storage temperature: -40 to +80 °C. Silent current: less than 10uA Internal resistance: less than 300mΩ Life cycle: more than 50,000 hours. Cut protection: Yes, the load can be repaired. Dimensions: 41 x 16 x 3.5 mm. Connector: B+ Connect positive battery. B - Connect the negative battery. MB Connect the point between battery 1 and battery 2. P+ Positive Charge/Discharge. P-negative charge/discharge Reminder: When combining batteries, the voltage, capacity and resistance of batteries should be well matched. The battery voltage should be about 3.7V at rated voltage. There is no output after battery assembly, and it can be charged with 8.4V voltage.

Review: Good - As described. Happy with the product.
Review: Easy to set up - work perfectly cut off voltage at six volts

## Features

- Over charge voltage range: 4.25v±0.05v. Over discarge voltage range: 2.9v±0.05v. Max. working current 8A. Max peak current: 10A. Working current: 8.4V - 9V.
- Life cycle :more than 50000hours. Resistance: Less than 300mΩ. Short cut protection, charge can repair.
- Package contains:5 pieces of 7.4v 8.4V 2S lithium battery protection board. Size: 41*16*3.5mm. 2S 7.4V Li-ion battery protection board, built-in three-stage over-current detection circuit (over-current 1, over-current 2, or load short circuit).
- High-accuracy voltage detection circuit; terminal of the charger using high voltage device; MOS transistor can control the battery charge and discharge; low standby current consumption.
- Reminder: When combining batteries, the voltage, capacity and resistance of the batteries should be well matched. The battery voltage should be around 3.7V at the rated voltage. There is no output after the battery pack is assembled, and it can be charged with 8.4V voltage.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09VGH38Y5 |
| Amperage | 10 Amps |
| Battery Charge Time | 50000 Hours |
| Best Sellers Rank | 10,166 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 2 in Conditional Access Modules |
| Brand | JZK |
| Brand Name | JZK |
| Colour | Blue |
| Compatible Devices | Any device using Li-ion/LiPo 18650 batteries |
| Connector Types | Custom (B+, B-, MB, P+, P-) |
| Country of Origin | China |
| Current Rating | 8 Amps |
| Customer Reviews | 4.1 out of 5 stars 143 Reviews |
| EU Spare Part Availability Duration | 7 Years |
| Input Voltage | 8.4 Volts |
| Item Dimensions D x W x H | 3D x 16W x 41H millimetres |
| Item Weight | 0.03 Kilograms |
| Item weight | 0.03 Kilograms |
| Manufacturer | JZK-M468204U |
| Manufacturer Part Number | M468204U |
| Model Number | M468204U |
| Output Voltage | 8.4 Volts (DC) |
| Output voltage | 8.4 Volts (DC) |
| Product dimensions | 3D x 16W x 41H millimetres |
| Specification Met | UL, CE |
| Specification met | UL, CE |
| Unit Count | 5.0 count |

## Product Details

- **Brand:** JZK
- **Colour:** Blue
- **Output voltage:** 8.4 Volts (DC)
- **Product dimensions:** 3D x 16W x 41H millimetres
- **Specification met:** UL, CE

## Images

![JZK 5PCS 2S 7.4V lithium battery protection board module, 7.4v 8.4V 2S BMS PCM Charge Discharge Protection Board for Li-Ion Lipo Battery 18650 - Image 1](https://m.media-amazon.com/images/I/71ldelv3xCL.jpg)
![JZK 5PCS 2S 7.4V lithium battery protection board module, 7.4v 8.4V 2S BMS PCM Charge Discharge Protection Board for Li-Ion Lipo Battery 18650 - Image 2](https://m.media-amazon.com/images/I/61rC4v0TtGL.jpg)
![JZK 5PCS 2S 7.4V lithium battery protection board module, 7.4v 8.4V 2S BMS PCM Charge Discharge Protection Board for Li-Ion Lipo Battery 18650 - Image 3](https://m.media-amazon.com/images/I/61qhUs2GZ-L.jpg)
![JZK 5PCS 2S 7.4V lithium battery protection board module, 7.4v 8.4V 2S BMS PCM Charge Discharge Protection Board for Li-Ion Lipo Battery 18650 - Image 4](https://m.media-amazon.com/images/I/61aTzfOzp1L.jpg)
![JZK 5PCS 2S 7.4V lithium battery protection board module, 7.4v 8.4V 2S BMS PCM Charge Discharge Protection Board for Li-Ion Lipo Battery 18650 - Image 5](https://m.media-amazon.com/images/I/5191r7c+nrL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good
*by G***U on 3 January 2026*

As described. Happy with the product.

### ⭐⭐⭐⭐⭐ Easy to set up
*by K***N on 18 December 2025*

work perfectly cut off voltage at six volts

### ⭐⭐⭐⭐ working, but not best
*by G***N on 18 January 2026*

not best but working

## Frequently Bought Together

- JZK 5PCS 2S 7.4V Lithium Battery Protection Board Module, 7.4v 8.4V 2S BMS PCM Charge Discharge Protection Board for Li-Ion Lipo Battery 18650
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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-07-21*