Victron Energy DC-DC Converters — Buy in Ukraine

A DC-DC converter is a device that converts direct current voltage from one level to another: it steps up, steps down, or galvanically isolates electrical circuits from each other. Unlike an inverter, which converts DC to AC (such as a 12V to 220V converter), a DC-DC converter works exclusively with DC voltage. It matches 12V, 24V, and 48V networks with each other and charges auxiliary batteries while on the move. The Victron Orion-Tr Smart lineup is one of the smartest on the market: it is not just a converter, but a fully-featured charger with Bluetooth control that integrates seamlessly into the Victron ecosystem.

Why You Need a DC-DC Converter

A typical scenario: a car, camper, or boat has an auxiliary service battery for a refrigerator, lighting, or an inverter. While driving, the alternator charges the starter battery, but the service battery remains undercharged. A simple parallel connection via a relay or diode isolator does not provide proper charging, especially for lithium LiFePO4 batteries.

An Orion-Tr Smart step-down or step-up voltage converter solves this problem: it connects between the starter and service batteries, stabilizes the voltage to the required level, and charges the auxiliary battery using a complete multi-stage algorithm — just as efficiently as a stationary mains charger.

Victron DC-DC Converter Models by Voltage

DC-DC 12V → 12V — Orion-Tr Smart 12/12

The most popular series for passenger cars, motorhomes, and yachts with a 12V onboard network. It steps up and stabilizes the voltage from the starter battery to the correct charging level for the service battery. Models are available in 18A (216W) and 30A (360W) versions. The Orion-Tr Smart 12/12-30A Isolated DC-DC Charger with full galvanic isolation is especially relevant for working with LiFePO4 batteries.

DC-DC 24V → 12V — Step-Down Converter for Trucks

A classic task for commercial vehicles, buses, and specialized equipment with a 24V network where 12V equipment needs to be powered: dashcams, two-way radios, USB chargers, refrigerators, and navigation. The DC-DC 24V to 12V series provides a stable output with currents up to 20–30A and is available in both isolated and non-isolated versions.

DC-DC 12V → 24V — Step-Up Converter

A step-up DC-DC converter from 12V to 24V is required when the power source is 12V but the load or battery charging requires 24V. Examples include charging a 24V service battery from a 12V starter battery or powering 24V equipment within a 12V network.

DC-DC 48V → 12V — For Electric Vehicles and Industrial Systems

A solution for electric vehicles, golf carts, energy storage systems, and industrial facilities with a high-voltage 48V bus. The DC-DC converter 48V to 12V powers 12V equipment directly from a 48V battery bank without auxiliary power supplies, available with current ratings up to 16A and 30A.

Isolated 24/24, 48/24 Converters — For Complex Systems

Where galvanic isolation between circuits or voltage stabilization within the same level is required, Victron offers isolated versions of the Orion-Tr. These are used in telecommunication systems, server racks, industrial automation, and large battery banks.

Isolated vs. Non-Isolated DC-DC Converter — Which to Choose

• Non-isolated — the input and output share a common negative (ground) wire. It is simpler, more compact, and more affordable, making it suitable for most automotive applications where both batteries share a common chassis ground.
• Isolated — the input and output are completely galvanically separated. This is mandatory when working with LiFePO4 batteries, in marine installations without a common ground on the hull, and in systems where reverse currents between circuits are unacceptable.

Control via VictronConnect

All Orion-Tr Smart models feature a built-in Bluetooth module and can be managed via the free VictronConnect app (iOS / Android). Input and output voltage, charge current, stage of the algorithm, and the battery profile (AGM, GEL, LiFePO4) are visible in real time. The Engine Detection feature automatically starts charging when it detects that the engine is running (based on the voltage rise in the onboard network), preventing the starter battery from draining while parked with the load turned on.

Where Victron DC-DC Converters Are Used

• Cars and Off-road Vehicles — charging the service battery while driving
• Campers and Motorhomes — powering the domestic battery bank without draining the starter battery
• Yachts and Boats — isolated DC-DC converters for marine applications
• Trucks and Buses — step-down 24V → 12V converters
• Electric Vehicles and Golf Carts — DC-DC 48V → 12V for onboard electronics
• Off-grid and Solar Systems — voltage redistribution between storage bank circuits
• Industrial and Telecom Facilities — voltage stabilization and isolation

Advantages of Victron Energy DC-DC Converters

• Multi-stage charging algorithm — a fully-featured charger, not just a converter
• Support for AGM, GEL, Flooded, and LiFePO4 batteries
• Isolated and non-isolated versions to suit any wiring diagram
• Bluetooth configuration and monitoring via VictronConnect
• Engine Detection — automatic activation when the engine starts
• Voltage range: 12/12, 12/24, 24/12, 24/24, 48/12, 48/24V
• Current up to 30A, power up to 360W per module
• Compatibility with the Victron ecosystem: GX devices, VRM portal, and BMS
• Overload, short circuit, and over-temperature protection
• CE and RoHS certified, backed by the manufacturer's warranty

Buy a Victron DC-DC Converter

We stock all major models of Victron Orion-Tr Smart DC-DC converters, including isolated and non-isolated versions for 12V, 24V, and 48V systems. Every purchase comes with an official manufacturer's warranty and technical consultation to help select the ideal model for your specific wiring layout and application.

Browse and select the right model from the catalog above, or contact us — we will help you choose the optimal DC-DC voltage converter for your system.