Starting at a height of just over 1 foot, the ECO-WORTHY 12V 40A DC to DC Battery Charger with MPPT On-Board Solar Battery Charger Lithium LiFePO4 Battery Gel AGM, Multi-Stage Charging for Solar Panel Alternator in RVs Trailer High Frequency Auto Charging is designed to provide reliable and efficient power for your vehicle. The addition of a stater battery and leisure battery isolation system ensures that the leisure battery remains isolated from back-charging, reducing the risk of premature wear.

This multi-stage, multi-input battery charger offers a range of charging options, including connecting directly to your solar panel or using a car alternator's starter battery. The ECO-WORTHY 40A DC to DC charger has intelligent MPPT (Maximum Power Point Tracking) technology that ensures maximum efficiency and power output from both the solar panels and batteries.

With its IP65 level waterproof rating, this device is designed to withstand harsh weather conditions. Featuring a low voltage protection system for engine starting batteries and life battery overcharge protection, it provides added safety and reliability in extreme temperatures.

A simple and intuitive design makes it easy to use, with clear wiring instructions and a built-in light that indicates when the connection is abnormal. The compact size of this charger at 1 foot tall makes it perfect for installation in RVs or trailers where space is limited.