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Victron Energy
Victron Orion-Tr Smart 12/48-8A — 380W Isolated DC-DC Charger
ORI124838120
8A 12V-to-48V isolated DC-DC charger with adaptive 3-stage algorithm, galvanic isolation and Bluetooth. Charges 48V LiFePO4, AGM, gel or lead-acid banks from a 12V alternator.
$359.95
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A 12V-to-48V isolated DC-DC charger that puts an alternator-charged 48V battery bank behind a single compact unit. Steps 12V input up to a programmable 40 to 60V output at 8A continuous, charging 48V LiFePO4 house banks, ebike packs, bow-thruster banks or 48V lift batteries while the engine runs. Fits custom caravan 48V systems, 4WD canopies with 48V tool batteries, boats with 48V bow thrusters and off-grid rigs feeding a 48V inverter.
The 1.8 kg aluminium-heatsink enclosure is 130 by 186 by 80 mm. IP43 keeps dust and spray out of the electronics; the terminal area is IP22. Galvanic isolation between input, output and case is rated to 200V DC. Screw terminals take cable up to 16mm². A two-pole screw-terminal remote on/off accepts a BMS low-voltage disconnect, an ignition feed or a dash switch. Bluetooth Smart is built in for VictronConnect setup, monitoring and firmware updates.
The charger shuts down below 7V input to protect a 12V starter battery and restarts at 7.5V. Output derates 3 percent per °C above 40°C up to +55°C. Match the output voltage to the 48V bank chemistry in VictronConnect, and fuse both the 12V input and 48V output close to each battery.
What sets it apart
12V to 48V step-up — charges a 48V bank from a 12V alternator
Galvanic isolation — 200V DC between input, output and case
Adaptive 3-stage charging — bulk, absorption and float per chemistry
Bluetooth Smart built in — VictronConnect app over phone or tablet
Adjustable 40 to 60V output — matches LiFePO4, AGM, gel, lead acid
Engine shutdown detection — only draws from a running alternator
IP43 enclosure — dust-tight electronics, splash-rated body
Parallel multiple units — add 8A per unit for higher charge rate
Pairs with
- 12V to 48V step-up — charges a 48V bank from a 12V alternator
- Galvanic isolation — 200V DC between input, output and case
- Adaptive 3-stage charging — bulk, absorption and float per chemistry
- Bluetooth Smart built in — VictronConnect app over phone or tablet
- Adjustable 40 to 60V output — matches LiFePO4, AGM, gel and lead-acid banks
- Engine shutdown detection — only draws from a running alternator
- IP43 enclosure — dust-tight electronics, splash-rated body
- Parallel multiple units — add 8A per unit for a higher charge rate
Output
Nominal current: 8A at 40°C
Max current: 15A
Continuous power: 360W at 40°C
Output voltage: 40 to 60V (default 48.2V)
Charge algorithm: Adaptive 3-stage
Input
Operating voltage: 8 to 17V DC
Shutdown: 7V
Restart: 7.5V
Control and protection
Bluetooth: Built-in
Remote on/off: 2-pole screw terminal
Parallel operation: Unlimited units
Protections: Short-circuit, over-temp
Operating temp: -20 to +55°C
Humidity: 95% max
Build
Dimensions: 130 × 186 × 80 mm
Weight: 1.8 kg
Terminals: 16mm² screw
IP (electronics): IP43
IP (connections): IP22
Galvanic isolation: 200V DC
