--- product_id: 502041409 title: "4S 5A Active Balancer with Shell" brand: "qinizx" price: "₩50882" currency: KRW in_stock: true reviews_count: 7 category: "Qinizx" url: https://www.desertcart.kr/products/502041409-4s-5a-active-balancer-with-shell store_origin: KR region: South Korea --- # 5.5A high balance current Supports 3S/4S Li-ion & LiFePO4 Under-voltage sleep protection 4S 5A Active Balancer with Shell **Brand:** qinizx **Price:** ₩50882 **Availability:** ✅ In Stock ## Summary > ⚡ Balance Smarter, Charge Faster, Last Longer! ## Quick Answers - **What is this?** 4S 5A Active Balancer with Shell by qinizx - **How much does it cost?** ₩50882 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/502041409-4s-5a-active-balancer-with-shell) ## 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 battery health and minimize standby current (<0.1mA). - • **Plug & Play with Safety:** Includes transparent protective case and LED status indicator for easy monitoring and secure installation. - • **Precision Balancing Power:** Ultra-low resistance MOSFETs and 2OZ copper PCB ensure lightning-fast, efficient cell equalization up to 5.5A. - • **Expandable & Manager-Friendly:** Connect multiple units in parallel for high-capacity packs (30-300AH), perfect for professional battery projects. - • **Universal Battery Compatibility:** Seamlessly supports NCM ternary, LiFePO4, Lipo, and Li-ion chemistries for versatile energy management. ## Overview The 3S 4S 12V 5.5A Capacitor Active Equalizer is a high-performance battery balancer designed for Li-ion and LiFePO4 packs. Featuring ultra-low resistance MOSFETs, 2OZ copper PCB, and a 5.5A balancing current, it ensures precise cell equalization and extends battery lifespan. Its smart under-voltage sleep protection and low quiescent current (<0.1mA) safeguard your investment, while the included protective case and LED indicator provide user-friendly safety and monitoring. Ideal for professional-grade battery management in packs ranging from 30 to 300AH. ## Description Buy 3S 4S 12V 5.5A Capacitor Active Equalizer Whole Group Balancer Lifepo4 LFP Lipo Li-ion Lto Lithium Active Battery Energy Transfer Equalization + Protective Case: Battery Chargers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Great Product - I have added these little boards to every lifepo4 battery project I've built and couldn't be more pleased. Cells are always spot on and match each other no matter how hard I discharge or charge them. Much faster and better balancer than the BMS. Review: Use the protective shield that comes with it. - Worked pretty dern good ## Features - Working Voltage: 2.7V-4.2V, suitable for NCM Ternary polymer lithium battery (Li-ion), lithium iron phosphate battery (LiFePO4), Not Fit Lithium Titanate). It can be used in parallel with BMS protection board. NOTE Tips: The default protective case is a kit, not assembled, the transparent acrylic case has a yellow protective film that can be peeled off. - 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 12mA, and the battery capacity is recommended to be used between 30-300AH/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. - RUN Pad: you can add a switch to control the balancer. Default short connect, let balancer working. if disconnect, it will not working. One LED indicator: It will always be on during normal operation, but it will not turn on when there is a problem or malfunction. Equipped with VH3.96 terminal by default, come with 1.31ft 18awg wire. - 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 | B0BM77J1BQ | | Customer Reviews | 4.6 4.6 out of 5 stars (37) | | Date First Available | November 13, 2022 | | Item Weight | 2 ounces | | Item model number | Balancer-4S-5A-Shell | | Manufacturer | QINIZX | | Product Dimensions | 2.6 x 1.8 x 0.36 inches | ## Product Details - **Brand:** QINIZX - **Color:** Black - **Input Voltage:** 16.8 Volts (DC) - **Item Weight:** 2 Ounces - **Item dimensions L x W x H:** 2.6 x 1.8 x 0.36 inches ## Images ![4S 5A Active Balancer with Shell - Image 1](https://m.media-amazon.com/images/I/712IHdA-MAL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Product *by D***S on November 30, 2025* I have added these little boards to every lifepo4 battery project I've built and couldn't be more pleased. Cells are always spot on and match each other no matter how hard I discharge or charge them. Much faster and better balancer than the BMS. ### ⭐⭐⭐⭐⭐ Use the protective shield that comes with it. *by M***S on June 25, 2025* Worked pretty dern good ### ⭐⭐⭐⭐⭐ Working great! *by K***K on October 17, 2024* Hooking up was easy with you tube vid! Didn’t know but light stays on all the time,it’s only off when there’s a problem. ## Frequently Bought Together - 3S 4S 12V 5.5A Capacitor Active Equalizer Whole Group Balancer Lifepo4 LFP Lipo Li-ion Lto Lithium Active Battery Energy Transfer Equalization + 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 - Heltec 4S 5S 6S 5A Capacitor Active Equalizer Balancer Lifepo4 Lithium Lipo/Titanate LTO for Battery Car Audio Group Balancer --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.kr/products/502041409-4s-5a-active-balancer-with-shell](https://www.desertcart.kr/products/502041409-4s-5a-active-balancer-with-shell) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-05-10*