---
product_id: 47156062
title: "12V 100A 4Series BMS Protection Board with Balancing with Overcharge/Overdischarge/Overcurrent/Short Circuit Protection for LiFePO4 Battery Pack"
brand: "walfront"
price: "€ 30.66"
currency: EUR
in_stock: true
reviews_count: 8
category: "Walfront"
url: https://www.desertcart.nl/products/47156062-12v-100a-4series-bms-protection-board-with-balancing-with-overcharge
store_origin: NL
region: Netherlands
---

# 4-series LiFePO4 cell balancing 12V 100A max current Multi-layer protection suite 12V 100A 4Series BMS Protection Board with Balancing with Overcharge/Overdischarge/Overcurrent/Short Circuit Protection for LiFePO4 Battery Pack

**Brand:** walfront
**Price:** € 30.66
**Availability:** ✅ In Stock

## Summary

> 🛡️ Elevate your battery game with smart, balanced, and bulletproof power management!

## Quick Answers

- **What is this?** 12V 100A 4Series BMS Protection Board with Balancing with Overcharge/Overdischarge/Overcurrent/Short Circuit Protection for LiFePO4 Battery Pack by walfront
- **How much does it cost?** € 30.66 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/47156062-12v-100a-4series-bms-protection-board-with-balancing-with-overcharge)

## 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

- • **Compact & Lightweight:** At just 0.05 kg, this BMS fits effortlessly into your setup without adding bulk—power meets portability.
- • **Powerhouse Protection:** Safeguards your LiFePO4 battery pack from overcharge, overdischarge, overcurrent, and short circuits—because your energy deserves elite defense.
- • **Waterproof Durability:** Built to withstand moisture and environmental challenges, perfect for on-the-go professionals who demand reliability.
- • **Plug & Play Convenience:** Comes with 5P-250mm wiring for seamless integration—get your system up and running without the hassle.
- • **Precision Cell Balancing:** Equilibrium function ensures each cell charges evenly, extending battery life and maximizing performance—no weak links allowed.

## Overview

This 12V 100A 4-series BMS board is engineered for LiFePO4 battery packs, delivering comprehensive protection against overcharge, overdischarge, overcurrent, and short circuits. Featuring advanced cell balancing and waterproof design, it ensures longevity and safety for your energy system while offering easy installation with included wiring.

## Description

Buy 12V 100A 4Series BMS Protection Board with Balancing with Overcharge/Overdischarge/Overcurrent/Short Circuit Protection for LiFePO4 Battery Pack: Power Converters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: 4S 12P LifePo4 solar set up. - it works though i have not used the full 100 amp current but they keep working at at least 40 amp. The bms actually is still usable while charging as well. I have bought 2 of these and only one failed at the charging port side for some odd reason it would not charge anymore got it exchanged and everything has been fine sense and its been well over 30 days of charge cycles with my solar set up. Now that some one is getting a bit greedy with the price ill have to look for another seller that is cheaper with the same product.
Review: For The Money - I had good success using this small BMS. I just stuck to a 13.5ah battery pack comprised of 32700 cells, with 12.8 nominal voltage. I used a heat sink. I have ran a 18 watt shop light for 8 hours before the BMS shut off the pack. Worked as I would hope. Turned around and charged the pack with a Lithium Iron Phosphate charger, the charger is one rated for 40 Amps. An intelligent charger, applying what is needed and shutting off when fully charged. I use it weekly. I have two of these BMS and recommend them for light load application. You can run a LCD 30 inch TV with a small inverter, I ran a PS2 on it, lights. This is not meant for running electric heaters. Like household 30 Amp heaters. I use it for operating 12 volt heated jackets and gloves though. I recommend this product.

## Features

- Convenient to Operate: This Lithium BMS is designed for 4 series 12V LiFePO4 batteries, comes with 5P-250mm wire for convenient use
- Essential Part for Circuit Board: Protection circuit board is the heart of battery pack, must to have to avoid battery pack from explosion, fire and damage
- Multiple Protction Functions Allows Glossy Better Expeience: This Waterproof BMS Multiple protective functions including overcharge protection, overdischarge protection, overcurrent protection and short circuit protection
- Balance Function: This lifepo4 bms lithium Balance Board is equipped with equilibrium function to keep each cell in balance and good service life

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07511RJ9S |
| Battery Cell Composition | Lithium Ion |
| Battery Type | Lithium Ion |
| Best Sellers Rank | #533,676 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,400 in Power Converters |
| Brand | Walfront |
| Brand Name | Walfront |
| Compatible with Vehicle Type | For LiFePO4 Battery Pack |
| Customer Reviews | 3.6 out of 5 stars 150 Reviews |
| Item Weight | 0.05 Kilograms |
| Manufacturer | Walfront |
| Manufacturer Part Number | Walfrontvth9zscx12 |
| UPC | 736691475918 |
| Vehicle Service Type | For LiFePO4 Battery Pack |
| Voltage | 12 Volts, 3.2 Volts |

## Product Details

- **Brand:** Walfront
- **Manufacturer:** Walfront
- **UPC:** 736691475918

## Images

![12V 100A 4Series BMS Protection Board with Balancing with Overcharge/Overdischarge/Overcurrent/Short Circuit Protection for LiFePO4 Battery Pack - Image 1](https://m.media-amazon.com/images/I/61V6RMIiWwL.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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 4S 12P LifePo4 solar set up.
*by S***R on May 28, 2018*

it works though i have not used the full 100 amp current but they keep working at at least 40 amp. The bms actually is still usable while charging as well. I have bought 2 of these and only one failed at the charging port side for some odd reason it would not charge anymore got it exchanged and everything has been fine sense and its been well over 30 days of charge cycles with my solar set up. Now that some one is getting a bit greedy with the price ill have to look for another seller that is cheaper with the same product.

### ⭐⭐⭐⭐ For The Money
*by M***E on December 28, 2024*

I had good success using this small BMS. I just stuck to a 13.5ah battery pack comprised of 32700 cells, with 12.8 nominal voltage. I used a heat sink. I have ran a 18 watt shop light for 8 hours before the BMS shut off the pack. Worked as I would hope. Turned around and charged the pack with a Lithium Iron Phosphate charger, the charger is one rated for 40 Amps. An intelligent charger, applying what is needed and shutting off when fully charged. I use it weekly. I have two of these BMS and recommend them for light load application. You can run a LCD 30 inch TV with a small inverter, I ran a PS2 on it, lights. This is not meant for running electric heaters. Like household 30 Amp heaters. I use it for operating 12 volt heated jackets and gloves though. I recommend this product.

### ⭐⭐⭐ 11.8 volts
*by E***S on April 7, 2024*

Bought this BMS because ebikeschool from YouTube recommended it. I tested on a 12 V. Trolling battery. But it did not put out 12 V only getting 11.8i bought a second B. M. S to double check voltage. And got the same thing. 11.8. Don't know why they are selling this as 12 V. When you do not output to a Volt, very disappointed in wasting my money. Might be something I don't understand.....

## 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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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-02*