---
product_id: 448943332
title: "KNACRO 100A 4S 3.7V Protection Board for Lithium Battery 14.8V 16.8V with Balance Over-Current Over-Charge Over-Discharge Short-Circuit Protection BMS Protection PCB Board (4S 3.2V 100A)"
brand: "knacro"
price: "฿1661"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/448943332-knacro-100a-4s-3-7v-protection-board-for-lithium-battery
store_origin: TH
region: Thailand
---

# 100A current 4S 3.7V Overcharge protection KNACRO 100A 4S 3.7V Protection Board for Lithium Battery 14.8V 16.8V with Balance Over-Current Over-Charge Over-Discharge Short-Circuit Protection BMS Protection PCB Board (4S 3.2V 100A)

**Brand:** knacro
**Price:** ฿1661
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Up Your Safety: Protect Your Battery, Protect Your Future!

## Quick Answers

- **What is this?** KNACRO 100A 4S 3.7V Protection Board for Lithium Battery 14.8V 16.8V 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?** ฿1661 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/448943332-knacro-100a-4s-3-7v-protection-board-for-lithium-battery)

## 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

- • **📏 Ready to Use:** Includes 5P-250mm wires for easy installation and immediate use.
- • **🔒 Safety First:** Comprehensive protection against overcharging, over-discharging, and short circuits.
- • **⚖️ Balance is Key:** Equilibrium function ensures each cell maintains optimal performance and longevity.
- • **🛠️ Built to Last:** Engineered for durability, ensuring your battery pack remains safe and efficient.
- • **🔌 Versatile Compatibility:** Designed for 4 series 12V LiFePO4 batteries, making it a perfect fit for various applications.

## Overview

The KNACRO 100A 4S Protection Board is an essential component for lithium battery packs, providing critical safeguards against overcharging, over-discharging, and short circuits. With its balance function, it ensures optimal performance across all cells, making it ideal for 4 series 12V LiFePO4 batteries. This board comes equipped with 5P-250mm wires for straightforward installation, ensuring your battery pack operates safely and efficiently.

## Description

KNACRO 100A 4S 3.7V Protection Board for Lithium Battery 14.8V 16.8V with Balance Over-Current Over-Charge Over-Discharge Short-Circuit Protection BMS Protection PCB Board (4S 3.2V 100A)

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09QZDZDMG |
| Best Sellers Rank | #511,547 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,261 in Power Converters |
| Customer Reviews | 4.6 4.6 out of 5 stars (14) |
| Date First Available | January 16, 2018 |
| Item Weight | 2.11 ounces |
| Item model number | 4S-3.7V-100A |
| Manufacturer | KNACRO |
| Product Dimensions | 2.76 x 2.36 x 0.33 inches |

## Product Details

- **Brand:** KNACRO
- **Colour:** Black
- **Item weight:** 0.06 Kilograms
- **Input voltage:** 12 Volts
- **Output voltage:** 5 Volts

## Images

![KNACRO 100A 4S 3.7V Protection Board for Lithium Battery 14.8V 16.8V 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)
![KNACRO 100A 4S 3.7V Protection Board for Lithium Battery 14.8V 16.8V 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)
![KNACRO 100A 4S 3.7V Protection Board for Lithium Battery 14.8V 16.8V 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)
![KNACRO 100A 4S 3.7V Protection Board for Lithium Battery 14.8V 16.8V 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)
![KNACRO 100A 4S 3.7V Protection Board for Lithium Battery 14.8V 16.8V 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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**Shop now:** [https://www.desertcart.co.th/products/448943332-knacro-100a-4s-3-7v-protection-board-for-lithium-battery](https://www.desertcart.co.th/products/448943332-knacro-100a-4s-3-7v-protection-board-for-lithium-battery)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-04-27*