---
product_id: 722784456
title: "12V 100A 4Series BMS Protection Board with Balancing for 18650 Li-ion LiFePO4 Battery Pack"
brand: "walfront"
price: "44070CFA"
currency: XOF
in_stock: true
url: https://www.desertcart.sn/products/722784456-12v-100a-4series-bms-protection-board-with-balancing-for-18650
store_origin: SN
region: Senegal
---

# IP65 waterproof rating 100A continuous discharge Precision cell balancing 12V 100A 4Series BMS Protection Board with Balancing for 18650 Li-ion LiFePO4 Battery Pack

**Brand:** walfront
**Price:** 44070CFA
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up with confidence—your battery’s ultimate guardian!

## Quick Answers

- **What is this?** 12V 100A 4Series BMS Protection Board with Balancing for 18650 Li-ion LiFePO4 Battery Pack by walfront
- **How much does it cost?** 44070CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/722784456-12v-100a-4series-bms-protection-board-with-balancing-for-18650)

## Best For

- walfront enthusiasts

## Why This Product

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

## Key Features

- • **Smart Cell Balancing:** Intelligent balancing extends battery lifespan by keeping each cell perfectly in sync.
- • **Plug & Play Simplicity:** Effortless installation with 5P-250mm harness—perfect for pros and DIYers alike.
- • **Ultimate Battery Safety:** Comprehensive protection against overcharge, overdischarge, overcurrent, and short circuits keeps your pack secure.
- • **Versatile Power Partner:** Seamlessly integrates with solar setups, EVs, and high-demand projects for maximum compatibility.
- • **Built to Brave the Elements:** IP65 waterproof design ensures reliable performance rain or shine.

## Overview

This 12V 100A 4-series BMS Protection Board by Walfront is engineered for LiFePO4 battery packs, delivering robust multi-layered protection including overcharge, overdischarge, overcurrent, and short circuit safeguards. Featuring an IP65 waterproof rating and precision cell balancing, it maximizes battery lifespan and reliability. Its plug-and-play design with a 5P-250mm harness makes installation quick and hassle-free, ideal for solar energy, electric vehicles, and other power-intensive applications.

## Description

This product is a battery board which is designed for 4 series 12V LiFePO4 batteries. And the board is equipped with multiple protective functions including overcharge , overdischarge , overcurrent and short circuit , so you can use it safely. Moreover, the balance function the board equipped ensures that each battery cell can be fully charged at the same time.  Specifications:  Continuous Discharging Current: 100A() Instantaneous Discharge Current: 150A Charging Voltage: 15V Charging Current: 10A() Overcharge  Over- Detect: 3.75±0.05V Delay: 0.5S Over- release: 3.65±0.1V Detect Voltage: 3.60±0.05V Release Voltage: 3.60±0.05V Balance Current: 36±5mA Over-discharge  Over-discharge Detect: 2.0±0.1V Over-discharge Detect delay: 0.1S Release Voltage:2.25±0.1V Over-current  Detect Voltage:150mV Detect Delay: 9mS Current Detect: 200±10A Release Condition: Cut Load Short-circuit  Condition:Load Short Circuit Detect Delay: 250uS Release Condition: Cut Load Inner : ≤25mΩ Working Current: ≤20uA Sleep Current (when Over-discharge): ≤10uA Working Temperature Range: -30/+80℃  Package Includes: 1×4S Battery Board

## Features

- Effortless Operation: Specifically engineered for 4-series 12V LiFePO4 batteries, this board comes with a 5P-250mm wire harness. Its plug-and-play design allows for quick and hassle-free installation, making it ideal for both DIY enthusiasts and professional installers.​
- Crucial Circuit Protection: As the control center of your battery pack, this high-quality circuit board is an absolute necessity. It provides comprehensive protection against potential hazards such as explosions, fires, and damages, ensuring the safety and reliability of your battery system.​
- All-Round Protection for Peak Performance: Boasting an IP65 waterproof rating, this board offers multiple advanced protection functions. It safeguards against overcharging, overdischarging, overcurrent, and short circuits, delivering a seamless and worry-free user experience while maximizing the lifespan of your battery pack.​
- Precision Cell Balancing: Equipped with an intelligent balance function, this LiFePO4 battery board ensures each cell in the pack remains in equilibrium. By preventing cell overcharge or undercharge, it significantly extends the overall service life of your battery pack, maintaining consistent performance over time.​
- Versatile Compatibility: Designed to integrate seamlessly with various battery setups, this board is a versatile solution for a wide range of applications. Whether for solar energy storage, electric vehicles, or other power-intensive projects, it offers reliable performance and compatibility.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Walfront |
| Brand | Walfront |
| Item model number | 4330198367 |
| Manufacturer Part Number | Walfrontvth9zscx12 |
| Colour | multi |
| Manufacturer | Walfront |
| Item Weight | 50 g |

## Product Details

- **Brand:** Walfront
- **Number Of Cells:** 4
- **Manufacturer:** Walfront
- **UPC:** 736691475918

## Images

![12V 100A 4Series BMS Protection Board with Balancing for 18650 Li-ion LiFePO4 Battery Pack - Image 1](https://m.media-amazon.com/images/I/61V6RMIiWwL.jpg)
![12V 100A 4Series BMS Protection Board with Balancing for 18650 Li-ion LiFePO4 Battery Pack - Image 2](https://m.media-amazon.com/images/I/61M6XVPor4L.jpg)
![12V 100A 4Series BMS Protection Board with Balancing for 18650 Li-ion LiFePO4 Battery Pack - Image 3](https://m.media-amazon.com/images/I/619jj6f5sLL.jpg)
![12V 100A 4Series BMS Protection Board with Balancing for 18650 Li-ion LiFePO4 Battery Pack - Image 4](https://m.media-amazon.com/images/I/61UWXV6YabL.jpg)
![12V 100A 4Series BMS Protection Board with Balancing for 18650 Li-ion LiFePO4 Battery Pack - Image 5](https://m.media-amazon.com/images/I/61t-rfiDk1L.jpg)

## Questions & Answers

**Q: Can this handle charging through the negative output instead of the charging negative pad?**
A: You can't really do this, because you lose the charging protection. Essentially you will be able to charge at whatever the full output is... since you're using the same mosfets. I've tested this personally on this unit, and similarly-priced models from other vendors. It's a shame, because I'm trying to use this with an alternator and I am starting to think BMS is not possible. I will have to get a charge management controller.

**Q: It specifies charge voltage of 15v.  can i use an 18v dc?  will it regulate it for proper charging voltage and current?  thanks.**
A: Hello~ You cannot use an 18 v dc, it's higher than 15 v, and may cause damage to the protection. It means that the max charging voltage is 15 v. Hope this could help you, and thank you for your support!

**Q: how to wire up the separate port BMS to solar charge controller? Is there diagram?**
A: solar positive and battery positive go together on the battery and solar ground goes to battery charge ground on the bms

**Q: Hello, each of my four 12v 12ah lifepo4 batteries already have individual internal bms protection. would adding this unit make any sense? thx**
A: It depends on you, and this protection circuit board helps protecting battery pack from overcharging, over-discharging over-current and short circuit. and it is designed with equilibrium function to keep each cell in balance and good service life.

## Frequently Bought Together

- 12V 100A 4Series BMS Protection Board with Balancing with Overcharge/Overdischarge/Overcurrent/Short Circuit Protection for LiFePO4 Battery Pack
- DEWIN Pure Nickel Strip 99.6% Nickel, 1M 0.15 mm Soldering Tabs for High Capacity 18650 Lithium Battery Pack, Li-Po, NiMh and NiCd Battery Pack and Spot Welding

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**Shop now:** [https://www.desertcart.sn/products/722784456-12v-100a-4series-bms-protection-board-with-balancing-for-18650](https://www.desertcart.sn/products/722784456-12v-100a-4series-bms-protection-board-with-balancing-for-18650)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-03-03*