---
product_id: 409082227
title: "3S 4S 5A Active Equalizer Whole Group Balancer Lifepo4 Lipo Lto Lithium Active Battery Energy Transfer Equalization Capacitor + Protective Case"
brand: "cywhrvzsf"
price: "€ 39.69"
currency: EUR
in_stock: true
reviews_count: 8
category: "Cywhrvzsf"
url: https://www.desertcart.be/products/409082227-3s-4s-5a-active-equalizer-whole-group-balancer-lifepo4-lipo
store_origin: BE
region: Belgium
---

# 5.5A max equalizing current Supports 60-300AH battery capacity Sleep protection below 3V 3S 4S 5A Active Equalizer Whole Group Balancer Lifepo4 Lipo Lto Lithium Active Battery Energy Transfer Equalization Capacitor + Protective Case

**Brand:** cywhrvzsf
**Price:** € 39.69
**Availability:** ✅ In Stock

## Summary

> ⚡ Balance Smarter, Last Longer — Power Your Battery’s Full Potential!

## Quick Answers

- **What is this?** 3S 4S 5A Active Equalizer Whole Group Balancer Lifepo4 Lipo Lto Lithium Active Battery Energy Transfer Equalization Capacitor + Protective Case by cywhrvzsf
- **How much does it cost?** € 39.69 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/409082227-3s-4s-5a-active-equalizer-whole-group-balancer-lifepo4-lipo)

## Best For

- cywhrvzsf enthusiasts

## Why This Product

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

## Key Features

- • **Robust Build Quality:** 2OZ copper PCB & ultra-low resistance MOSFETs housed in a sleek protective case for durability and safety.
- • **Smart Sleep Protection:** Automatically powers down below 3V to prevent battery damage and extend lifespan.
- • **Precision Active Balancing:** Ensures ultra-fast, efficient charge equalization up to 5.5A for peak battery performance.
- • **Wide Battery Compatibility:** Optimized for Lithium Iron Phosphate & NCM Ternary Polymer batteries from 60 to 300AH capacity.
- • **Plug & Play with Confidence:** Clear wiring checks and 24/7 expert support ensure hassle-free setup and reliable operation.

## Overview

The 3S 4S 5A Active Equalizer is a high-performance battery balancing module designed for Lithium Iron Phosphate and NCM Ternary Polymer batteries between 60-300AH. Featuring a max equalizing current of 5.5A, ultra-low internal resistance components, and smart sleep protection below 3V, it actively balances battery cells to optimize charge efficiency and extend battery life. Packaged with a protective case and backed by 24/7 support, it’s the essential upgrade for professionals demanding reliable, long-lasting battery performance.

## Description

Product Describtion:Model:3S-4SSuitable :Lithium Iron Phosphate, NCM Ternary Polymer,(Not Fit Lithium Titanate)Voltage is 1.8 V-4.5VQuiescent Current: 12mASuggest Battery Capacity: 60-300AHWorking Temperature :0-60 degreesSleep Protection:voltage<3V, enter the sleep,standby power consumption is less than 0.1mA,to reduce the damage to the battery.Safety Information：Before connecting the equalization board, check whether each piece of wiring is correct, and do insulation work to prevent burnout,This is very important, please pay attention.NOTE: If the LED indicator is always on, it means that the capacitor plate has been running in a balanced manner. When a fault occurs, the LED indicator will go out.Package Included:1*3S 4S 5A Active Equalizer Lifepo4 Lipo Lto Lithium1*Protective Case

Review: Balances fast and good value - Bought some 200AH LIFEPO4 drop in batteries (non-smart) and had issues reaching above 13.8v during charge, with more than half of them... I had some suspicions one cell or more were reaching 3.65v before the rest. They still pulled capacity so support wasn't much help. After cracking one open, I confirmed the imbalance. This balancer worked perfectly, and was able to sort out the imbalance in a few hours of on/off tinkering. Just make sure you wire it up right. I'm cautious so I monitor that no cell goes over 3.65v (LIFEPO4) and let it get to work. Now I can charge to the proper 14.2-14.6v on these batteries. Many cheap drop in batteries have a BMS that either doesn't balance, or if it does, it's at a pathetic rate of 30ma or so. This seems to be good quality including the case and 18awg balance leads. Highly recommend this active balancer with case! Only wished they also included a small wiring diagram in box. Saved screenshot from desertcart, so wasn't an issue, but it's my only complaint.
Review: Possible risk if battery discharged. - Second time purchasing. For some reason if my lifelong 12v pack discharged below 11v they get every hot and blow some capacitors. Not sure if is related to a damage Batery. The ideal is to disconnect the module if below some voltage.

## Features

- [Product Information]: Protective Case needs to be assembled by yourself,After the assembly is completed, tear off the outer yellow film.Before connecting the equalization board, check whether each piece of wiring is correct, insulation between the bottom board and the battery connection terminals is required to prevent burnout.Model:3S-4S Suitable : Lithium Iron Phosphate, NCM Ternary Polymer,(Not Fit Lithium Titanate).
- [Capacitance Principle]: No external power supply is required,The working principle is Capacitor fit transfers the charge transporter, use the internal energy transfer of the battery to transfer and balance the entire battery pack.the equalization board can be connected to the battery to start the equalization work.
- [Protection switch]: With sleep protection, when the voltage is lower than 3V, it will automatically stop and enter the sleep state to reduce the damage to the battery.With a protective case, it can better protect 3S 4S 5A Active Equalizer and Extend product life.
- [Original Design]:using the original ultra-low internal resistance MOS, 2OZ copper thickness PCB, equalizing current 0-5.5A, The more balanced the battery, the lower the current.Voltage is 1.8 V-4.5V ,Suggest Battery Capacity: 60-300AH.
- [Satisfactory service]:Protective Case needs to be assembled by yourself, We Provide 24-hour online service,If you encounter any problems, Please email SELLER SUPPORT (Not desertcart support), we will give you a perfect solution.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09QKWH6RL |
| Best Sellers Rank | #252,264 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,101 in Power Converters |
| Brand | Cywhrvzsf |
| Color | Yellow |
| Customer Reviews | 4.4 out of 5 stars 121 Reviews |
| Input Voltage | 18 volts_of_direct_current |
| Item Weight | 0.1 kg |
| Manufacturer | Cywhrvzsf |
| Mfr Part Number | yun-dong-199 |
| Model Number | 3S 4S |
| Output Voltage | 18 volts_of_direct_current |
| Power Source | battery |
| UPC | 602262884062 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Cywhrvzsf
- **Color:** Yellow
- **Item Weight:** 0.1 Kilograms
- **Input Voltage:** 18 Volts (DC)
- **Output Voltage:** 18 Volts (DC)

## Images

![3S 4S 5A Active Equalizer Whole Group Balancer Lifepo4 Lipo Lto Lithium Active Battery Energy Transfer Equalization Capacitor + Protective Case - Image 1](https://m.media-amazon.com/images/I/718cWBy4tDL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Balances fast and good value
*by J***N on January 13, 2024*

Bought some 200AH LIFEPO4 drop in batteries (non-smart) and had issues reaching above 13.8v during charge, with more than half of them... I had some suspicions one cell or more were reaching 3.65v before the rest. They still pulled capacity so support wasn't much help. After cracking one open, I confirmed the imbalance. This balancer worked perfectly, and was able to sort out the imbalance in a few hours of on/off tinkering. Just make sure you wire it up right. I'm cautious so I monitor that no cell goes over 3.65v (LIFEPO4) and let it get to work. Now I can charge to the proper 14.2-14.6v on these batteries. Many cheap drop in batteries have a BMS that either doesn't balance, or if it does, it's at a pathetic rate of 30ma or so. This seems to be good quality including the case and 18awg balance leads. Highly recommend this active balancer with case! Only wished they also included a small wiring diagram in box. Saved screenshot from Amazon, so wasn't an issue, but it's my only complaint.

### ⭐⭐⭐⭐⭐ Possible risk if battery discharged.
*by A***R on August 2, 2025*

Second time purchasing. For some reason if my lifelong 12v pack discharged below 11v they get every hot and blow some capacitors. Not sure if is related to a damage Batery. The ideal is to disconnect the module if below some voltage.

### ⭐⭐⭐⭐⭐ Works!
*by D***T on August 23, 2022*

I thought I had a bad cell. Would not balance. It was messing up my entire system. I spent many hours trying to resolve the problem. Many nights I ran out of power (or, more to the point, could not access the power due to the "bad" cell). I installed this active equalizer and the cells have been in perfect balance ever since. Magic!

## Frequently Bought Together

- 3S 4S 5A Active Equalizer Whole Group Balancer Lifepo4 Lipo Lto Lithium Active Battery Energy Transfer Equalization Capacitor + Protective Case
- TKDMR 10pcs 1/0 AWG-3/8 Battery Lugs,Heavy Duty Wire Lugs,Ring Terminals,Battery Cable Ends,0 Guage terminals,Battery Terminal Connectors with 10pcs 3:1 Heat Shrink Tubing
- ILL Customz 38120 Headway Buss Bars 4s Configuration for 12v Cells NOT Included (48ah 4s6p (24 Cells))

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-08-31*