The Victron Energy Orion-Tr Smart DC to DC Charger is a versatile and efficient solution for charging batteries in dual battery systems in vehicles or on boats. Featuring built-in Bluetooth connectivity, the charger can be easily monitored and controlled from a smartphone or tablet. This includes adjusting charging parameters, viewing battery status, and remotely turning the charger on or off. The battery charger's advanced features, such as engine running detection mechanism, ensure optimal performance and prevent unnecessary battery drain. Its adaptive 3-stage charging algorithm provides efficient and safe charging for both lead acid and lithium batteries. Additionally, the Orion-Tr Smart DC-DC Charger can be connected in parallel with unlimited multiple units to increase output power. This makes it a highly scalable solution for applications requiring higher charging capacity. The DC DC charger also has IP43 protection when mounted with the screw terminals facing downward and is suitable for high temperatures up to 55°C with a full rated output up tp 40°C. Models of the Orion-Tr Smart DC to DC Charger are available up to 400 Watt.