---
product_id: 495078241
title: "100A 4S 3.2V Protection Board for Lithium Battery 9.6V 11.1V 12.6V with Balance Over-Current Over-Charge Over-Discharge Short-Circuit Protection BMS Protection PCB Board (4S 3.2V 100A)"
brand: "knacro"
price: "9894 Ft"
currency: HUF
in_stock: true
url: https://www.desertcart.hu/products/495078241-100a-4s-3-2v-protection-board-for-lithium-battery-9
store_origin: HU
region: Hungary
---

# 100A high current capacity 4S 3.2V LiFePO4 battery support Multi-layered protection system 100A 4S 3.2V Protection Board for Lithium Battery 9.6V 11.1V 12.6V with Balance Over-Current Over-Charge Over-Discharge Short-Circuit Protection BMS Protection PCB Board (4S 3.2V 100A)

**Brand:** knacro
**Price:** 9894 Ft
**Availability:** ✅ In Stock

## Summary

> 🛡️ Keep your power pack safe, balanced, and unstoppable!

## Quick Answers

- **What is this?** 100A 4S 3.2V Protection Board for Lithium Battery 9.6V 11.1V 12.6V with Balance Over-Current Over-Charge Over-Discharge Short-Circuit Protection BMS Protection PCB Board (4S 3.2V 100A) by knacro
- **How much does it cost?** 9894 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/495078241-100a-4s-3-2v-protection-board-for-lithium-battery-9)

## Best For

- knacro enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play Ready:** Comes with 5P-250mm wires for quick, hassle-free installation and immediate protection
- • **Precision Cell Balancing:** Equilibrium function ensures each cell stays perfectly balanced for maximum battery lifespan
- • **Comprehensive Safety Shield:** Protects against over-charge, over-discharge, over-current, and short circuits to prevent costly failures
- • **Powerhouse Current Handling:** Supports up to 100A continuous current for demanding applications
- • **Optimized for 4S LiFePO4 Packs:** Specifically designed for 4-series 12V battery configurations, ensuring seamless integration

## Overview

The KNACRO 100A 4S 3.2V Protection Board is a high-capacity BMS designed for 4-series LiFePO4 battery packs. It delivers robust 100A current handling while safeguarding your battery with advanced protections against over-charge, over-discharge, over-current, and short circuits. Its built-in cell balancing extends battery life, making it an essential upgrade for reliable, long-lasting power systems.

## Description

- Protection circuit board is the heart of battery pack, must to have to avoid battery pack from explosion, fire and damage - It will protect battery pack from overcharging, over-discharging over-current and short circuit - With equilibrium function to keep each cell in balance and good service life - Used for 4 series 12V Lithium batteries, comes with 5P-250mm wires - Choosing the correct protection board and applying it appropriately is vital to the longevity your batteries   Specification:  - Discharge - Continuous Discharging Current: 100(MAX) A - Instantaneous Discharge Current: 120 A - Charge - Charging Voltage: 16.8 V  - Charging Current: 10(MAX) A - Overcharge Protect - Over-charge Detect: 4.28±0.05 V - Protect Delay: 0.5S - Over-charge release: 4.08 ±0.05 V - Balance - Detect Voltage: 4.2±0.05 V - Release Voltage: 4.2±0.05 V - Balance Current:58 - Over-discharge Protect: - Over-discharge Detec t: 2.5±0.08 V - Over-discharge Detect delay: 0.1S - Release Voltage: 2.9±0.1 V - Over-current Protect: - Detect Voltage 150 mV - Detect Delay: 40 mS - Current Detect: 120±10 A - Release Condition: Cut Load - Short-circuit Protect - Protect Condition: Load Short Circuit - Detect Delay: 250 uS - Release Condition: Cut Load - Temperature Protect : / / ℃ - Resistance - Inner: ≤20 mΩ - Self-Consumption - Working Current: ≤ 30 uA - Sleep Current (when Over-discharge): ≤20 uA - Working Temperature - Range: -20/+80 ℃ - Size: 70*60*8.5mm   Package Includes: 1 Piece Battery Protection Board  If you have any question , please feel free to contact us.

## Features

- Protection circuit board is the heart of battery pack, must to have to avoid battery pack from explosion, fire and damage.
- It will protect battery pack from overcharging, over-discharging over-current and short circuit.
- With equilibrium function to keep each cell in balance and good service life
- Used for 4 series 12V LiFePO4 batteries, comes with 5P-250mm wires
- Choosing the correct protection board and applying it appropriately is vital to the longevity your batteries

## Product Details

- **Brand:** KNACRO
- **Color:** Black
- **Item Weight:** 0.06 Kilograms
- **Input Voltage:** 12 Volts
- **Output Voltage:** 12 Volts

## Images

![100A 4S 3.2V Protection Board for Lithium Battery 9.6V 11.1V 12.6V with Balance Over-Current Over-Charge Over-Discharge Short-Circuit Protection BMS Protection PCB Board (4S 3.2V 100A) - Image 1](https://m.media-amazon.com/images/I/81WLI2mQtrL.jpg)
![100A 4S 3.2V Protection Board for Lithium Battery 9.6V 11.1V 12.6V with Balance Over-Current Over-Charge Over-Discharge Short-Circuit Protection BMS Protection PCB Board (4S 3.2V 100A) - Image 2](https://m.media-amazon.com/images/I/81t+KL1Wk4L.jpg)
![100A 4S 3.2V Protection Board for Lithium Battery 9.6V 11.1V 12.6V with Balance Over-Current Over-Charge Over-Discharge Short-Circuit Protection BMS Protection PCB Board (4S 3.2V 100A) - Image 3](https://m.media-amazon.com/images/I/71hsYpvnTyL.jpg)
![100A 4S 3.2V Protection Board for Lithium Battery 9.6V 11.1V 12.6V with Balance Over-Current Over-Charge Over-Discharge Short-Circuit Protection BMS Protection PCB Board (4S 3.2V 100A) - Image 4](https://m.media-amazon.com/images/I/81TvjLSKWvL.jpg)
![100A 4S 3.2V Protection Board for Lithium Battery 9.6V 11.1V 12.6V with Balance Over-Current Over-Charge Over-Discharge Short-Circuit Protection BMS Protection PCB Board (4S 3.2V 100A) - Image 5](https://m.media-amazon.com/images/I/71U7pUUp7JL.jpg)

## Available Options

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

## Frequently Bought Together

- KNACRO 100A 4S 3.2V Protection Board for Lithium Battery 9.6V 11.1V 12.6V with Balance Over-Current Over-Charge Over-Discharge Short-Circuit Protection BMS Protection PCB Board (4S 3.2V 100A)
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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-20*