---
product_id: 371801075
title: "3S 4S 12V 5A Battery Active Equalizer BMS Balancer Lipo Li-ion LFP LiFePO4 Lithium Battery Balance Active Energy Transfer Equalization Module Faster Whole Group Capacitor Balancer PCB"
brand: "qinizx"
price: "S$48"
currency: SGD
in_stock: true
reviews_count: 5
category: "Qinizx"
url: https://www.desertcart.sg/products/371801075-3s-4s-12v-5a-battery-active-equalizer-bms-balancer-lipo
store_origin: SG
region: Singapore
---

# 5.5A max balance current 2.7V-4.2V working voltage range Under-voltage sleep protection 3S 4S 12V 5A Battery Active Equalizer BMS Balancer Lipo Li-ion LFP LiFePO4 Lithium Battery Balance Active Energy Transfer Equalization Module Faster Whole Group Capacitor Balancer PCB

**Brand:** qinizx
**Price:** S$48
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** 3S 4S 12V 5A Battery Active Equalizer BMS Balancer Lipo Li-ion LFP LiFePO4 Lithium Battery Balance Active Energy Transfer Equalization Module Faster Whole Group Capacitor Balancer PCB by qinizx
- **How much does it cost?** S$48 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/371801075-3s-4s-12v-5a-battery-active-equalizer-bms-balancer-lipo)

## Best For

- qinizx enthusiasts

## Why This Product

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

## Key Features

- • **Smart Sleep Protection:** Automatically halts balancing below 2.7V to safeguard battery cells from damage.
- • **Ultra-Low Standby Power:** Dormant mode consumes less than 0.1mA, maximizing energy efficiency when idle.
- • **Plug & Play with Pro Support:** Backwards compatible design with clear wiring guidance and expert customer assistance.
- • **Powerful 5.5A Current Handling:** Supports high-capacity batteries up to 200AH with robust active energy transfer.
- • **Precision Balance, Zero Compromise:** Achieve ultra-accurate 5mV voltage balancing for peak battery health and longevity.

## Overview

The QINIZX 3S/4S 12V 5A Battery Active Equalizer is a high-precision capacitor-based balancer designed for Li-ion and LiFePO4 batteries. Featuring ultra-low internal resistance MOSFETs and a 2OZ copper PCB, it delivers up to 5.5A balancing current with 5mV accuracy. Its intelligent under-voltage sleep protection and minimal standby current (<0.1mA) ensure efficient, safe battery management for capacities between 30-200AH. Backwards compatible and easy to install, it’s engineered for professionals demanding reliable, long-lasting battery performance.

## Description

Capacitor energy transfer balance board with Balance cable (upgraded version, 5mv high precision, whole group balance, not adjacent balance) Technical Parameters: Working voltage: 2.7V-4.2V, suitable for NCM Ternary polymer lithium battery (Li-ion), lithium iron phosphate battery (LiFePO4). Working principle: Flycap-capacitor transfer charge transporter, Balancer board is connected to the battery to start the balance work, using the original brand new ultra-low internal resistance MOS, 2OZ copper thickness PCB, balance current 0-5.5A, the more balanced the battery current is Small, reserved for the dormant switch wiring position, the dormant power-off mode working current is less than 0.1mA, and the balance voltage accuracy is within 5mv! The quiescent current is about 9mA, and the battery capacity is recommended to be used between 30-200AH/Per Balancer. With under-voltage sleep protection, only detecting the battery voltage of B1, the equalizer will automatically stop entering the sleep state when the B1 voltage is lower than 2.7V, and the standby power consumption is <0.1mA. Board size: 66x46x16mm/2.6x1.8x0.63inch Balance cable length: 400mm/15.7inch One LED indicator: It will always be on during normal operation, but it will not turn on when there is a problem or malfunction. RUN pad: you can add a switch to control the balancer. Default short connect, let balancer working. if disconnect, it will not working. Tips: This balancer board is backward compatible by default. If it is used for 3S, the last line B4+ is empty. Note: 1. Please start wiring from the total negative pole, followed by B-, B1+, ... B4+.(Test per string battery voltage whether is right before connect to Balancer board). 2. The time required for equalization mainly depends on the battery capacity. Package Includes: 1x 4S Balancer Board 1x 5-Pin Cable

Review: Great Balance Board.
Review: Works perfectly with LTO cells

## Features

- Working Voltage: 2.7V-4.2V, suitable for NCM Ternary polymer lithium battery (Li-ion), lithium iron phosphate battery (LiFePO4). It can Not fit LTO battery. 【NOTE Tips】Well tested by the manufacturer. As long as the wiring is correct, the product guarantees long-lasting and effective performance. Of course, if customers have any questions, they can take the initiative to contact us, we are absolutely capable of providing more professional answers, rather than a direct refund returns.
- Working Principle: Flying capacitor transfer charge transporter, Balancer board is connected to the battery to start the balance work, using the original brand new ultra-low internal resistance MOS, 2OZ copper thickness PCB. Balance current 0-5.5A, the more balanced the battery current is Small, reserved for the dormant switch wiring position, the dormant power-off mode working current is less than 0.1mA, and the balance voltage accuracy is within 5mv!
- The quiescent current is about 9mA, and the battery capacity is recommended to be used between 30-200AH/Per Balancer. High-capacity batteries can be connected in parallel with multiple equalizers.
- With under-voltage sleep protection, only detecting the battery voltage of B1, the equalizer will automatically stop entering the sleep state when the B1 voltage is lower than 2.7V, and the standby power consumption is less than 0.1mA.
- 【NOTE】: Before connect the balance cable to the balance board, be sure to check whether the connections of each section of the battery pack are correct, and do a good job of insulating the bottom of the board and the battery string connection terminals. Otherwise, it will short-circuit and burn the board. Tips: This balancer board is backward compatible by default. eg. If it is used for 3S, the last line B4+ is empty.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B096NLHXPF |
| Best Sellers Rank | #177,255 in Electronics ( See Top 100 in Electronics ) #658 in Household Battery Chargers |
| Brand | QINIZX |
| Built-In Media | Cable, PCBA |
| Color | Black |
| Colour | Black |
| Customer Reviews | 4.5 out of 5 stars 197 Reviews |
| Input Voltage | 12 Volts |
| Input voltage | 12 Volts |
| Item Dimensions | 6.6 x 4.6 x 1.6 centimeters |
| Item Type Name | Battery Active Balancer |
| Item dimensions L x W x H | 6.6 x 4.6 x 1.6 centimeters |
| Item height | 0.63 inches |
| Manufacturer | QINIZX |
| Model Number | JW-CAP-Balancer-4S |
| Output Voltage | 12 Volts |
| Output voltage | 12 Volts |
| Plug Type | Type A |
| Plug type | Type A |
| UPC | 723258876141 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** QINIZX
- **Colour:** Black
- **Item dimensions L x W x H:** 6.6 x 4.6 x 1.6 centimeters
- **Output voltage:** 12 Volts
- **Plug type:** Type B

## Images

![3S 4S 12V 5A Battery Active Equalizer BMS Balancer Lipo Li-ion LFP LiFePO4 Lithium Battery Balance Active Energy Transfer Equalization Module Faster Whole Group Capacitor Balancer PCB - Image 1](https://m.media-amazon.com/images/I/61Wv0GAAguL.jpg)

## Questions & Answers

**Q: Can I use this with my 8s 24 volt battery pack??**
A: yes, it must can use it.

**Q: Will this damage sells in below freezing environments?**
A: Working temperature: -10 degrees to +60 degrees

**Q: Can i use this on headway 38120 8ah cells?**
A: Yes, it can use it.

**Q: Can the 13-17s be used for 2 individual 8s packs, one 8s on each harness side of balance board? ?**
A: No, suggest buy two 8s model.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Balance Board.
*by D***S on 4 November 2025*



### ⭐⭐⭐⭐⭐ Works perfectly with LTO cells
*by J***D on 2 February 2024*



### ⭐ Worked for 10 minutes, then burned up.
*by D***. on 6 September 2023*



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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-10*