Power Your Marine Electronics with Reliable 12V to 24V Conversion

Running high-demand electronics like radars, thrusters, or specialized navigation gear on a boat often means dealing with mismatched voltage systems. The Newmar 12-24-25 Step Up DC-DC Converter bridges that gap seamlessly, transforming your robust 12-volt house battery setup into a steady 24-volt supply. Without the hassle of adding a separate 24V battery bank or complex charging infrastructure, this unit delivers 25 amps continuous power—perfect for marine applications where space, weight, and simplicity matter most.

Engineered for negative ground systems, it handles real-world marine conditions with ease: fluctuating inputs from alternators or batteries, temperature swings, and vibration. Boat owners appreciate how it eliminates voltage drops that can glitch sensitive equipment, ensuring smooth operation during long passages or heavy use.

Robust Features for Demanding Environments

• High-Efficiency Conversion: Up to 93% efficiency means less heat buildup and wasted energy, keeping your system cooler and more reliable on extended voyages.
• Built-In Protections: Current limiting prevents overloads, voltage spike suppression shields gear from surges, and automatic thermal shutdown with recovery protects against overheating without manual intervention.
• Low Ripple Output: Under 100mV peak-to-peak ensures clean power for finicky electronics like chartplotters or sonar that hate noisy DC.
• Rugged Construction: Anodized aluminum and glass-filled polycarbonate case offers IP53-level resistance to dust, water splashes, and impacts—ideal for engine rooms or exposed deck mounts.
• Easy Monitoring: Green LED indicator confirms output status at a glance, simplifying troubleshooting at sea.

Technical Specifications at a Glance

Compact Design Fits Anywhere Onboard

This C-3 case size keeps installation straightforward in tight bilges or panels. Front-panel terminal blocks make wiring a breeze—no special tools needed.

Installation Tips for Optimal Performance

Mount in a well-ventilated spot away from heat sources. Use appropriately sized wire (e.g., 6-8 AWG for inputs/outputs) to minimize voltage drop—aim for under 3% loss. Fuse both input and output sides close to the source. For best results, connect to your house bank rather than starter battery to avoid alternator strain. Test under load before heading out to confirm stable output.

Pro tip: Pair with a battery monitor to track your 12V source health, as converters draw significant current (up to 50A at full load).

Ideal Applications in Marine and Beyond

From sailboats powering windlasses to power yachts running bow thrusters, this converter shines where 24V devices meet 12V systems. It's also a go-to for RVs with 24V inverters or off-grid setups needing dual-voltage flexibility. Skip the extra batteries—leverage your existing power plant efficiently.