--- product_id: 375911655 title: "5A 3S 12V 12.6V Battery Active Equalizer BMS Balancer Energy Transfer Board | LFP Lifepo4 Lithium Lipo Li-ion Compatible, Active Balance Equalization Module, Capacitor Whole Group Balancer, with Cable" brand: "qinizx" price: "119.94 DT" currency: TND in_stock: true reviews_count: 12 category: "Qinizx" url: https://www.desertcart.tn/products/375911655-5a-3s-12v-12-6v-battery-active-equalizer-bms-balancer store_origin: TN region: Tunisia --- # 5.5A max balance current 30-200AH battery capacity range Under-voltage sleep protection 5A 3S 12V 12.6V Battery Active Equalizer BMS Balancer Energy Transfer Board | LFP Lifepo4 Lithium Lipo Li-ion Compatible, Active Balance Equalization Module, Capacitor Whole Group Balancer, with Cable **Brand:** qinizx **Price:** 119.94 DT **Availability:** βœ… In Stock ## Summary > πŸ”‹ Balance Smarter, Last Longer β€” Power Your Pack Like a Pro! ## Quick Answers - **What is this?** 5A 3S 12V 12.6V Battery Active Equalizer BMS Balancer Energy Transfer Board | LFP Lifepo4 Lithium Lipo Li-ion Compatible, Active Balance Equalization Module, Capacitor Whole Group Balancer, with Cable by qinizx - **How much does it cost?** 119.94 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/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 - β€’ **Smart Sleep Mode:** Automatically enters ultra-low power sleep (<0.1mA) when voltage drops below 2.7V, extending battery lifespan. - β€’ **Plug & Play Confidence:** Includes 400mm silicone cable and LED status indicator for easy installation and real-time operation monitoring. - β€’ **Universal Compatibility:** Optimized for LiFePO4 and NCM ternary lithium batteries, perfect for 30-200AH packs in EVs, RVs, and power tools. - β€’ **Powerful Energy Transfer:** Handles up to 5.5A balancing current with ultra-low resistance MOS and 2OZ copper PCB for efficient charge equalization. - β€’ **Precision Balancing Mastery:** Achieve ultra-accurate 5mV voltage balance across all cells for peak battery health. ## Overview This 3S 12.6V active equalizer BMS balancer uses advanced flying capacitor technology and ultra-low resistance MOSFETs on a 2OZ copper PCB to deliver precise 5mV cell balancing at currents up to 5.5A. Designed for LiFePO4 and NCM lithium batteries between 30-200AH, it features intelligent under-voltage sleep protection to minimize power drain and extend battery life. Compact and easy to install with silicone cables and LED status, it’s ideal for RVs, power tools, and EV battery packs seeking optimal performance and longevity. ## 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: Fixed my LiFePO4 RV batteries - worked great to balance my 200AH RV batteries. Cells where ranging from 3.6 to 3.2 a few hours after installing this they where all the same. 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. ## 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 | #118,912 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #469 in Power Converters | | Brand | QINIZX | | Built-In Media | 3S PCBA, Cable | | Color | Green | | Customer Reviews | 4.6 out of 5 stars 221 Reviews | | Item Dimensions | 2.58 x 1.36 x 0.62 inches | | Item Type Name | Capacitor Active Equalizer | | Item Weight | 2 Ounces | | Item dimensions L x W x H | 2.58 x 1.36 x 0.62 inches | | Manufacturer | QINIZX | | Mfr Part Number | JW-CAP-Balancer-3S | | Model Number | JW-CAP-Balancer-3S | | Output Voltage | 12 Volts | | Plug Format | 2 Pin | | Plug Type | 2 Pin | | Power Source | DC | | UPC | 780861369965 | | Unit Count | 1 Count | | Warranty Description | Manufacturer warranty for 90 days from date of purchase. | ## Product Details - **Brand:** QINIZX - **Color:** Green - **Item Weight:** 2 Ounces - **Item dimensions L x W x H:** 2.58 x 1.36 x 0.62 inches - **Output Voltage:** 12 Volts ## Images ![5A 3S 12V 12.6V Battery Active Equalizer BMS Balancer Energy Transfer Board | LFP Lifepo4 Lithium Lipo Li-ion Compatible, Active Balance Equalization Module, Capacitor Whole Group Balancer, with Cable - Image 1](https://m.media-amazon.com/images/I/51BYS9nQH3L.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fixed my LiFePO4 RV batteries *by I***E on May 19, 2026* worked great to balance my 200AH RV batteries. Cells where ranging from 3.6 to 3.2 a few hours after installing this they where all the same. ### ⭐⭐⭐⭐⭐ 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. ### ⭐⭐⭐⭐⭐ Great Balance Board. *by D***S on November 4, 2025* I'm sold. These little guys just work. Latest build is a 4S2P 12v LIFEPO4 and the cells have been as much as .20 out of balance while charging. Within a couple hours they are exactly the same. I've read some horror stories with these and the main thing to.prevent problems is to install these before the battery pack is a mess of mismatched voltages. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/375911655-5a-3s-12v-12-6v-battery-active-equalizer-bms-balancer](https://www.desertcart.tn/products/375911655-5a-3s-12v-12-6v-battery-active-equalizer-bms-balancer) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-12*