2021+ Ford Bronco Gen 3 Dual Battery System

Batteries Sold Separately: Group 25 Batteries Required 2021+ Ford Bronco Gen 3 Dual Battery System Unlock the full electrical potential of your Bronco with the Genesis Offroad Gen 3 Dual Battery System. Designed specifically for the tight engine bay of the 2021+ Ford Bronco, this system provides unmatched reliability, clean wiring, and intelligent power management for all your accessories. GEN 3 Power Hub Features Bus Bars Adding electrical accessories has never been easier. All devices connected to the bus bars draw power from the auxiliary battery, ensuring your cranking battery remains protected. The bus bars include: Three heavy-duty studs: 3/8", 5/16", and 1/4" for winches, compressors, fuse blocks, and other high-amp accessories Three #10 screws for smaller ring terminals and low-amp devices Boost Switch Auto: Automatically connects or disconnects the batteries based on voltage On: Manually links the batteries—acts like built-in jumper cables for emergency starting Off: Manually separates the batteries G Screen Port Effortlessly plug in the optional G Screen Monitoring System using a single cable to view real-time system data. How the System Works The Gen 3 system uses a smart battery combiner to manage both batteries automatically: At engine startup, it charges the cranking battery first Once charged, it links both batteries in parallel so the alternator charges them together When voltage drops below ~12.7v for one minute, it separates the batteries Your accessories continue to run from the auxiliary battery—protecting your cranking battery from accidental drain. Battery Size Requirements Batteries are sold separately. Due to extremely limited space in the Bronco engine bay, Odyssey ODP-AGM25 batteries fit best. Other Group 25 batteries with straight sides may require cutting factory sheet metal. Refer to our installation video for details. Bus Bar Specs Stud Sizes: 3/8", 5/16", 1/4" Additional Connections: Three #10 screws for smaller accessories Cable Construction Our cables are made from premium 2ga pure copper welding cable: More flexible and more conductive than standard battery cable Thicker, abrasion-resistant jacket for superior durability Tin-plated copper lugs resist corrosion Adhesive-lined heat shrink seals out moisture for long-term protection Installation Time Typical DIY install: 2–3 hours using our step-by-step installation video Professional installation: Most shops bill ~2 hours Add time if you need to reroute aftermarket wiring to the bus bars Compatibility Fits all 2021+ Ford Bronco trims and engine options Strongly recommended: Odyssey Group 25 batteries for a no-mod fit Non-tapered batteries may require minor sheet-metal trimming Included in the Box Gen 3 Power Hub: Pre-wired smart battery combiner for automatic charging management Steel Battery Tray: CNC laser-cut, precision-bent, and powder-coated for durability Hardware Kit: All components required for a clean, straightforward installation Partner item — ships directly from Genesis Offroad