---
product_id: 375911655
title: "5A 3S 12V 12.6V Battery Active Equalizer BMS Balancer Energy Transfer Board"
brand: "qinizx"
price: "362 kr"
currency: NOK
in_stock: true
reviews_count: 12
category: "Qinizx"
url: https://www.desertcart.no/products/375911655-5a-3s-12v-12-6v-battery-active-equalizer-bms-balancer
store_origin: NO
region: Norway
---

# 5.5A max balance current 2.7V-4.2V working voltage range Under-voltage sleep protection 5A 3S 12V 12.6V Battery Active Equalizer BMS Balancer Energy Transfer Board

**Brand:** qinizx
**Price:** 362 kr
**Availability:** ✅ In Stock

## Summary

> 🔋 Balance smarter, last longer — never let your battery hold you back!

## Quick Answers

- **What is this?** 5A 3S 12V 12.6V Battery Active Equalizer BMS Balancer Energy Transfer Board by qinizx
- **How much does it cost?** 362 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/375911655-5a-3s-12v-12-6v-battery-active-equalizer-bms-balancer)

## 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 Mode:** Automatically powers down below 2.7V to protect your battery and save energy.
- • **Ultra-Low Power Draw:** Consumes less than 10mA in operation, ensuring minimal energy waste and continuous balancing.
- • **Robust 2OZ Copper PCB:** Enhanced durability and superior heat dissipation for reliable, long-term use.
- • **Plug & Play with Safety Tips:** Easy installation with clear wiring guidance to avoid shorts and maximize safety.
- • **Precision Balancing Within 5mV:** Keep your battery cells perfectly synced for peak performance and longevity.

## Overview

The 5A 3S 12V 12.6V Battery Active Equalizer BMS Balancer is a high-precision capacitor energy transfer board designed for lithium-ion and LiFePO4 batteries. It balances battery cells continuously with ultra-low power consumption, using advanced MOS technology and a thick copper PCB for durability. Featuring under-voltage sleep protection and a compact design, it ensures optimal battery health and extended lifespan, making it ideal for professional-grade battery management in solar generators, EVs, and energy storage systems.

## 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 less than 0.1mA. Board size: 66x35x16mm/2.6x1.37x0.63inch 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. Note: 1. Please start wiring from the total negative pole, followed by B-, B1+, ... B3+.(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. It is normal for the capacitor to heat up during energy conversion. Package Includes: 1x 3S Balancer Board 1x 4-Pin Cable

Review: Good cell balancer for tool battery. - Balanced my M18 12Ah overnight from 150mV to within 5mV. Very happy as the design brings the cells into equilibrium in lieu of designs that bring everything to the lowest cell voltage. At start I measured just over 20mA of current. Was surprised to find the next morning everything was balanced. It has a run light that was still on in the morning. Idk if it was still balancing but good enough. This was a battery I replaced 2 bad cells in. Nice for money. No frills, need a meter to confirm results.
Review: I wish these had been available 20 years ago!!!! - These things are amazing. They do a better (more accurate, and faster) job of balancing than my balancing chargers, and can be used for pre-charge, during charge and post charge balancing. I never liked using BMSes on my battery packs, preferring just to monitor conditions closely to get away with using simpler systems, fewer components to break down and the ability to over-power for short periods. I sure wish these had been available 20 years ago when I was actively building a lot of E-bikes and other battery operated systems. They would have made life much easier. Now, if the company would make similar modules that would balance 6 Volt Lead Acid battery arrays, I could vastly improve my solar power system for a reasonable cost. :-)

## 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.
- 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.
- Usage Tips: 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09DBJHJ1H |
| Best Sellers Rank | #7,937 in Musical Instruments ( See Top 100 in Musical Instruments ) #3 in Equalizers & Feedback Controllers |
| Brand | QINIZX |
| Color | Green |
| Customer Reviews | 4.6 out of 5 stars 276 Reviews |
| Input Voltage | 12.6 volts |
| Item Dimensions | 2.6 x 1.37 x 0.63 inches |
| Item Weight | 2 ounces |
| Item dimensions L x W x H | 2.6 x 1.37 x 0.63 inches |
| Manufacturer | QINIZX |
| Mfr Part Number | JW-CAP-Balancer-3S |
| Model Number | JW-CAP-Balancer-3S |
| Number of Items | 1 |
| Number of Outlets | 1 |
| Number of Packs | 1 |
| Output Voltage | 12.6 volts |
| Plug Type | VH3.96 Terminal |
| Power Source | Battery-Powered |
| UPC | 780861369965 |
| Unit Count | 1 Count |
| Warranty Description | 90 Days Manufacturer |

## Product Details

- **Brand:** QINIZX
- **Color:** Green
- **Input Voltage:** 12 volts_of_direct_current
- **Item Weight:** 2 ounces
- **Item dimensions L x W x H:** 2.58 x 1.36 x 0.62 inches

## Images

![5A 3S 12V 12.6V Battery Active Equalizer BMS Balancer Energy Transfer Board - Image 1](https://m.media-amazon.com/images/I/51BYS9nQH3L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good cell balancer for tool battery.
*by J***E on May 10, 2026*

Balanced my M18 12Ah overnight from 150mV to within 5mV. Very happy as the design brings the cells into equilibrium in lieu of designs that bring everything to the lowest cell voltage. At start I measured just over 20mA of current. Was surprised to find the next morning everything was balanced. It has a run light that was still on in the morning. Idk if it was still balancing but good enough. This was a battery I replaced 2 bad cells in. Nice for money. No frills, need a meter to confirm results.

### ⭐⭐⭐⭐⭐ I wish these had been available 20 years ago!!!!
*by G***R on July 17, 2026*

These things are amazing. They do a better (more accurate, and faster) job of balancing than my balancing chargers, and can be used for pre-charge, during charge and post charge balancing. I never liked using BMSes on my battery packs, preferring just to monitor conditions closely to get away with using simpler systems, fewer components to break down and the ability to over-power for short periods. I sure wish these had been available 20 years ago when I was actively building a lot of E-bikes and other battery operated systems. They would have made life much easier. Now, if the company would make similar modules that would balance 6 Volt Lead Acid battery arrays, I could vastly improve my solar power system for a reasonable cost. :-)

### ⭐⭐⭐⭐⭐ A great supplement to a high-quality BMS
*by R***Y on June 23, 2026*

I have a high-end 206-Ah SOK battery with an Overkill Solar (Xiaoxiang) BMS that I installed because I wanted bluetooth. This battery has developed one cell that just doesn't like to play nicely with the others as it approaches full charge and the built-in balancer in the BMS just doesn't balance the cells aggressively enough. This board solved the problem completely. I have since bought a couple more to address similar issues in a home-built battery and another commercial one. A really elegant, affordable solution.

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*Product available on Desertcart Norway*
*Store origin: NO*
*Last updated: 2026-09-16*