---
product_id: 588308404
title: "3S 4S 5A Active Equalizer Whole Group Balancer Lifepo4 Lipo Lto Lithium Active Battery Energy Transfer Equalization Capacitor + Protective Case"
brand: "cywhrvzsf"
price: "1926131₫"
currency: VND
in_stock: true
reviews_count: 5
category: "Cywhrvzsf"
url: https://www.desertcart.vn/products/588308404-3s-4s-5a-active-equalizer-whole-group-balancer-lifepo4-lipo
store_origin: VN
region: Vietnam
---

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

**Brand:** cywhrvzsf
**Price:** 1926131₫
**Availability:** ✅ In Stock

## Summary

> ⚡ Balance Your Power, Boost Your Battery Life!

## 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?** 1926131₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/588308404-3s-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 and ultra-low resistance MOSFETs deliver reliable, high-performance equalization.
- • **Smart Sleep Protection:** Automatically halts operation below 3V to extend battery lifespan and prevent damage.
- • **DIY Friendly with Support:** Includes protective case for durability and 24/7 expert support to guide your seamless setup.
- • **Precision Active Balancing:** Ensures ultra-efficient charge transfer for perfectly balanced battery packs.
- • **Universal Lithium Compatibility:** Optimized for LiFePO4, NCM ternary polymer batteries (3S-4S), empowering versatile energy management.

## Overview

The 3S 4S 5A Active Equalizer is a high-performance capacitor-based battery balancer designed for 3 to 4 series lithium battery packs (LiFePO4, NCM). It features a robust 2OZ copper PCB, ultra-low internal resistance MOSFETs, and supports battery capacities from 60 to 300AH. With smart sleep protection to prevent over-discharge damage and a protective case for durability, this equalizer optimizes battery pack performance by actively transferring charge to balance cells without external power. Ideal for professionals seeking reliable, efficient battery management and extended battery life.

## 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: 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: I mean it's simple electrical theory - this balancer should work well. I just didn't think it would work THIS well....especially for the price. I have 16 * 300Ah 3.2v cells that were pretty out of balance, and this balancer got them balanced within a few days! The battery bank is on a Daly BMS which is *supposed* to have balancing, but clearly was not effective. I put this balancer on top of it, and all cells are now almost perfectly balanced.

## 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 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 150,364 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 116 in Guitar Equalisation |
| Colour | Yellow |
| Customer Reviews | 4.5 4.5 out of 5 stars (269) |
| Date First Available | 8 Sept. 2023 |
| Item Weight | 100 g |
| Item model number | 3S 4S |
| Manufacturer | Cywhrvzsf |
| Material | Polymer |
| Package Dimensions | 10.31 x 7.11 x 4.09 cm; 100 g |
| Part number | yun-dong-199 |
| Plug profile | Panel Mount |
| Shape | Rectangular |
| Size | 3S 4S+CASE |
| Voltage | 3 Volts |

## Product Details

- **Brand:** Cywhrvzsf
- **Colour:** Yellow
- **Input voltage:** 18 Volts (DC)
- **Item weight:** 0.1 Kilograms
- **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/4145E5lziNL.jpg)
![3S 4S 5A Active Equalizer Whole Group Balancer Lifepo4 Lipo Lto Lithium Active Battery Energy Transfer Equalization Capacitor + Protective Case - Image 2](https://m.media-amazon.com/images/I/41JpSgV9cwL.jpg)
![3S 4S 5A Active Equalizer Whole Group Balancer Lifepo4 Lipo Lto Lithium Active Battery Energy Transfer Equalization Capacitor + Protective Case - Image 3](https://m.media-amazon.com/images/I/41M9CdELtHL.jpg)
![3S 4S 5A Active Equalizer Whole Group Balancer Lifepo4 Lipo Lto Lithium Active Battery Energy Transfer Equalization Capacitor + Protective Case - Image 4](https://m.media-amazon.com/images/I/41OH+Uy2AuL.jpg)
![3S 4S 5A Active Equalizer Whole Group Balancer Lifepo4 Lipo Lto Lithium Active Battery Energy Transfer Equalization Capacitor + Protective Case - Image 5](https://m.media-amazon.com/images/I/41ZqJOfnpxL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***N on 13 January 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.

### ⭐⭐⭐⭐⭐ Review
*by C***K on 21 July 2025*

I mean it's simple electrical theory - this balancer should work well. I just didn't think it would work THIS well....especially for the price. I have 16 * 300Ah 3.2v cells that were pretty out of balance, and this balancer got them balanced within a few days! The battery bank is on a Daly BMS which is *supposed* to have balancing, but clearly was not effective. I put this balancer on top of it, and all cells are now almost perfectly balanced.

### ⭐⭐⭐⭐⭐ Review
*by S***R on 14 September 2025*

These cell balancers do work very well when carefully installed.

## 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 Vietnam*
*Store origin: VN*
*Last updated: 2026-03-13*