The Victron Orion-Tr Smart DC-DC Charger is a professional, adaptive 3-stage charger with built-in Bluetooth, designed for use in dual battery systems in vehicles or boats. It efficiently charges the service battery using the alternator and start battery, can be monitored and programmed via Bluetooth, and features a remote control option. This charger is suitable for both lead acid and lithium batteries, handling high temperatures and offering a full-rated output up to 40°C, making it a versatile and reliable choice for managing your charging needs. Victron Number: ORI121236140 Datasheet: P20628 Victron Charger Data Sheet Operating Instructions: P20628 Victron Charger Operating Manual P20628 Victron Connect 2 Operating Manual