The SRNE MD1250N05 is a high-efficiency, multi-stage DC-DC charger and MPPT solar charge controller designed for dual-battery systems in vehicles, boats, and off-grid applications. It intelligently manages power from both solar panels and a vehicle alternator or generator, ensuring that the auxiliary battery is charged safely, efficiently, and reliably under all conditions.

Key Features

Dual Input Charging: Accepts power from both alternator and solar sources, charging the auxiliary battery independently from the starter battery.

MPPT Solar Technology: Utilises advanced Maximum Power Point Tracking to extract the maximum possible power from solar panels, improving overall charging efficiency by up to 98%.

Multiple Charging Modes: Supports solar charging only, alternator charging only, or simultaneous charging from both sources.

Automatic Battery Detection: Compatible with standard and smart alternators, making it ideal for modern vehicles.

Multi-Chemistry Support: Works with Sealed, Gel, Flooded, and Lithium (LiFePO₄) batteries, with user-customisable charging parameters.

Comprehensive Protection: Built-in safeguards against overvoltage, overcurrent, overheating, reverse polarity, and night-time reverse charging.

Compact & Efficient Design: Fanless cooling, ultra-low standby power consumption (<0.6 W), and durable IP32 enclosure for reliable performance.

 Applications

Campervans, motorhomes, and RVs

Marine and boat installations

Off-grid cabins and mobile power setups

Dual-battery vehicle systems

Summary

The SRNE MD1250N05 combines intelligent charging control with powerful MPPT solar optimisation, ensuring efficient battery management wherever you go. Designed for reliability and simplicity, it’s the perfect solution for maintaining fully charged leisure or auxiliary batteries in any off-grid environment.