Dual Pro Lithium Battery Gauge - Single - Rectangle Vertical Display

The Dual Pro Lithium Battery Gauge - Single - Rectangle Vertical Display (Model BFGVLITH) is purpose-built for drivers and technicians who demand precision battery monitoring in modern vehicles, particularly those running lithium or advanced auxiliary battery systems. Whether you're managing a dual-battery setup in an off-road rig, monitoring a secondary lithium pack in an overlanding build, or maintaining battery health in a custom vehicle installation, this gauge delivers real-time state-of-charge data that goes far beyond what factory instrumentation provides. The vertical rectangle display format fits seamlessly into custom dash panels and battery management installations where horizontal space is limited.

What sets this gauge apart is the integrated Current Transducer (CT) included with every unit—a critical component that enables accurate, real-time state of charge readings instead of the voltage-guessing estimates typical battery monitors rely on. The CT measures actual amperage draw and charge input, allowing the gauge to calculate remaining capacity with professional-grade precision. This engineering approach is especially valuable when you're running lithium chemistries, where voltage curves behave differently than lead-acid, and where over-discharge protection is mission-critical. The rectangle vertical design (6 × 3 × 9 inches) fits tight installation spaces common in modern truck beds, camper builds, and engine compartments where horizontal gauges simply won't work.

This gauge is ideal for expedition builders, dual-battery installers, lithium conversion projects, and technicians setting up power management systems in trucks, vans, and overlanding platforms. Installation pairs the gauge face with the CT sensor mounted directly on the battery shunt or charge line, feeding accurate data through clean wiring runs to your display location. Weighing just 0.75 lbs, the gauge itself adds negligible weight while delivering professional monitoring that prevents dead batteries and extends lithium cell lifespan by preventing over-discharge. Compatibility spans any 12V system running auxiliary lithium or advanced battery chemistry where precise state-of-charge visibility is essential to reliability and safety.