Victron Energy Orion-TR Smart 12/12-18 18A 220W Isolated DC-DC Charger or Power Supply One Size. For use in dual battery systems in vehicles or on boats where the (smart) alternator and the start battery are used to charge the service battery. The unit can be monitored and programmed via Bluetooth and can be remotely controlled via a remote on/off switch and has an engine running detection mechanism. The Orion Tr-Smart charger can be used in 12V or 24V systems and is suitable for both lead acid and lithium batteries. Models are available up to 400W and unlimited multiple units can be connected in parallel to increase output power. Features of Victron Energy Orion-TR Smart DC-DC Isolated Charger / Power Supply Output Voltage adjust range: 20-30V Continuous output current at nominal output voltage: 15 Amps Max output current at nominal output voltage: 25 Amps Efficiency: 88percent Package Contents: Victron Energy Orion-TR Smart DC-DC Isolated Charger / Power Supply Victron Energy ORI121222120: Orion-TR Smart 12/12-18 18A 220W Isolated DC-DC Charger or Power Supply One Size