Victron Energy Orion-Tr Smart 12/24 10 AMP 240W 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. Suitable for high temperatures up to 55C with a full rated output up to 40C. Please contact your dealer for any returns repairs or support issues related to this product. Package Contents: Victron Energy Orion-Tr Smart 12/24 10 AMP 240W Isolated DC-DC Charger or Power Supply Victron Energy ORI122424120: Orion-Tr Smart 12/24 10 AMP 240W Isolated DC-DC Charger or Power Supply One Size