The Victron Orion-Tr Smart 48/24-16A is an isolated DC-DC charger that steps a 48V supply down to a regulated 24V output at up to 16A (380W). Bluetooth configuration and monitoring are built in, so it works as a genuine battery-to-battery charger rather than a plain voltage reducer.

Key features of this victron isolated dc to dc charger

• Galvanic isolation between input and output, removing ground loop risk between circuits.
• Bluetooth Smart built in for setup and monitoring through the VictronConnect app on iOS or Android.
• Adaptive 3-stage charging (bulk, absorption, float) with selectable presets including lithium, AGM and gel.
• Input voltage range of 38V to 60V DC, so the unit keeps working across varying 48V battery states.
• Adjustable output voltage to fine-tune the 24V output for the connected battery bank.
• Engine start detection, so the unit can be set to charge only while the alternator is running.

Product overview

Because it applies a proper multi-stage charge algorithm to the output battery, the Orion-Tr Smart brings a secondary battery to full charge rather than simply floating it. That distinction matters for lithium batteries, which need precise charge termination that a basic converter cannot deliver.

Transformer-based isolation avoids the corrosion, interference and fault currents that direct connection between two battery banks can cause in marine and vehicle systems. Multiple units can also be run in parallel where a higher charge rate is needed.

Configuration is done over Bluetooth via VictronConnect, with no separate programming cable required. A VE.Direct port allows the charger to be monitored through a GX device or the VRM portal as part of a wider Victron system.

Applications

• Charging a 24V service battery bank from a 48V traction or house battery in electric vehicles and campervans.
• Marine dual-battery systems needing galvanic isolation against corrosion and ground faults.
• Off-grid cabins and mobile setups with a 48V primary system that need a regulated 24V supply for secondary loads.
• Industrial vehicles with mixed 48V and 24V electrical architectures.
• Telecom and remote monitoring installations needing isolated, regulated DC conversion.

What's in the box

• 1x Victron Orion-Tr Smart 48/24-16A (380W) Isolated DC-DC Charger

Installation notes

Fitting should be carried out by a qualified electrician or experienced system integrator. Wiring on both input and output must be correctly rated, and the unit should be mounted somewhere well ventilated and secured against vibration in mobile use. Marine installs should follow the relevant NMEA guidance.