--- product_id: 504359464 title: "5A 3S 4S 12V Battery Active Equalizer Whole Group Balancer LiFePO4 LFP Lipo Li-ion Lithium Active Battery Energy Transfer Equalization Capacitor Balancer PCB Module with Acrylic Protective Case" brand: "xfybzn" price: "€ 64.06" currency: EUR in_stock: true reviews_count: 1 category: "Xfybzn" url: https://www.desertcart.at/products/504359464-5a-3s-4s-12v-battery-active-equalizer-whole-group-balancer store_origin: AT region: Austria --- # 5A max balancing current Supports 3S/4S Li-ion & LiFePO4 Ultra-low quiescent current <0.1mA 5A 3S 4S 12V Battery Active Equalizer Whole Group Balancer LiFePO4 LFP Lipo Li-ion Lithium Active Battery Energy Transfer Equalization Capacitor Balancer PCB Module with Acrylic Protective Case **Brand:** xfybzn **Price:** € 64.06 **Availability:** ✅ In Stock ## Summary > ⚡ Balance Smarter, Power Longer — The Ultimate Battery Equalizer for Pros ## Quick Answers - **What is this?** 5A 3S 4S 12V Battery Active Equalizer Whole Group Balancer LiFePO4 LFP Lipo Li-ion Lithium Active Battery Energy Transfer Equalization Capacitor Balancer PCB Module with Acrylic Protective Case by xfybzn - **How much does it cost?** € 64.06 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/504359464-5a-3s-4s-12v-battery-active-equalizer-whole-group-balancer) ## Best For - xfybzn enthusiasts ## Why This Product - Trusted xfybzn brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Universal Compatibility:** Optimized for NCM ternary Li-ion and LiFePO4 batteries, perfect for 3S or 4S configurations. - • **Smart Sleep Mode Protection:** Automatically enters ultra-low power sleep mode (<0.1mA) when voltage drops below 2.7V to prevent damage. - • **Powerful 5A Current Handling:** Handles up to 5.5A balancing current with 2OZ copper PCB for efficient energy transfer. - • **Sleek Transparent Acrylic Case:** Durable protective casing with peel-off yellow film for a clean, professional look on your battery setup. - • **Precision Balance, Maximum Battery Life:** Maintains voltage accuracy within 5mV to extend your battery pack’s health and performance. ## Overview This 5A active battery equalizer expertly balances 3S and 4S lithium-ion and LiFePO4 battery packs with ultra-precise voltage control (±5mV). Featuring a robust 2OZ copper PCB and ultra-low quiescent current (<0.1mA), it maximizes battery lifespan while minimizing energy waste. Its smart under-voltage sleep protection safeguards your pack, and the included transparent acrylic case adds a sleek, professional finish. Ideal for 30-300AH battery capacities, this module is a must-have for any serious energy management setup. ## Description 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 30-300AH/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: 2.6x1.8x0.63inch Balance cable length: 1.31ft 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+, ... 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 5Pin Cable 2 x Acrylic Board 4 x Short Screw 4 x Long Screw 4 x Stud 4 x Washer Review: I wish to fit an on-off switch to this. I assume i can do this at the run terminals which are bridged with solder. problem is there are two sets of run terminals one on the front and another on the back. I also assume that I will have to use the ones on the front. is this correct? ## 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. If it is used for 3S, the last line B4+ is empty. (Note: 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! - 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. - Attention: 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 | B0BBRNF823 | | Amperage | 5 Amps | | Brand Name | XFYBZN | | Colour | Black | | Current Rating | 5 Amps | | Customer Reviews | 5.0 5.0 out of 5 stars (2) | | Input Voltage | 16.8 Volts (DC) | | Item Dimensions D x W x H | 66D x 46W x 16H millimetres | | Item Type Name | Active Equalizer | | Manufacturer | XFYBZN | | Manufacturer Part Number | JWCABalancer-4S | | Model Number | JWCABalancer-4S | | Output Voltage | 4.2 Volts | | Specification Met | energy | | UPC | 789513999000 | ## Product Details - **Brand:** XFYBZN - **Colour:** Black - **Output voltage:** 4.2 Volts - **Product dimensions:** 66D x 46W x 16H millimetres - **Specification met:** energy ## Images ![5A 3S 4S 12V Battery Active Equalizer Whole Group Balancer LiFePO4 LFP Lipo Li-ion Lithium Active Battery Energy Transfer Equalization Capacitor Balancer PCB Module with Acrylic Protective Case - Image 1](https://m.media-amazon.com/images/I/6176lejC84L.jpg) ![5A 3S 4S 12V Battery Active Equalizer Whole Group Balancer LiFePO4 LFP Lipo Li-ion Lithium Active Battery Energy Transfer Equalization Capacitor Balancer PCB Module with Acrylic Protective Case - Image 2](https://m.media-amazon.com/images/I/61F7Qe33rEL.jpg) ![5A 3S 4S 12V Battery Active Equalizer Whole Group Balancer LiFePO4 LFP Lipo Li-ion Lithium Active Battery Energy Transfer Equalization Capacitor Balancer PCB Module with Acrylic Protective Case - Image 3](https://m.media-amazon.com/images/I/61yYZmBsYeL.jpg) ![5A 3S 4S 12V Battery Active Equalizer Whole Group Balancer LiFePO4 LFP Lipo Li-ion Lithium Active Battery Energy Transfer Equalization Capacitor Balancer PCB Module with Acrylic Protective Case - Image 4](https://m.media-amazon.com/images/I/61WnS-t9JxL.jpg) ![5A 3S 4S 12V Battery Active Equalizer Whole Group Balancer LiFePO4 LFP Lipo Li-ion Lithium Active Battery Energy Transfer Equalization Capacitor Balancer PCB Module with Acrylic Protective Case - Image 5](https://m.media-amazon.com/images/I/61Xw7F6hxZL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by J***H on 8 February 2023* I wish to fit an on-off switch to this. I assume i can do this at the run terminals which are bridged with solder. problem is there are two sets of run terminals one on the front and another on the back. I also assume that I will have to use the ones on the front. is this correct? ## Frequently Bought Together - 5A 3S 4S 12V Battery Active Equalizer Whole Group Balancer LiFePO4 LFP Lipo Li-ion Lithium Active Battery Energy Transfer Equalization Capacitor Balancer PCB Module with Acrylic 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)) --- ## 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.at/products/504359464-5a-3s-4s-12v-battery-active-equalizer-whole-group-balancer](https://www.desertcart.at/products/504359464-5a-3s-4s-12v-battery-active-equalizer-whole-group-balancer) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-04-22*