Victron Buck-Boost 50A DC-DC Converter

SKU: ORI303050000

The Victron Buck-Boost DC-DC Converter is essential for properly charging a 12/24V house battery in vehicles and RVs that desire to charge from the alternator. This converter ensures correct charging current and voltage, preventing overheating and damage to the charging system.


  • Fully programmable Buck-Boost converter
  • Input voltage: 10-30 VDC
  • Output voltage: 10-30 VDC
  • Max Output current: 50A (buck) 25A (boost)
  • Adjustable current limiter
  • Automatic activation when engine is running
  • Auxiliary Output Signal

2 in stock




Victron Buck-Boost 50A DC-DC Converter

The Victron Buck-Boost converter series is a program of specially developed DC/DC converters for fully-controlled charging of an extra battery or a battery bank. Application is necessary in the case of vehicles with an alternator intelligent control, and for general protection of the alternator in lithium systems.

Overload Protection

Alternators are controlled by the engine electronics, often supply too low charging voltage even with the engine running. As a result, a buck-boost converter is necessary to charge the extra battery. In the case of lithium systems, the alternator must be protected against overload, resulting in overheating, which arises because the voltage control of the alternator cannot anticipate zero resistance of lithium battery systems.

Engine-Running Detection

The Victron Buck-Boost only provides power when the engine is running to ensure that the start battery of the vehicle is always loaded with priority. This is possible thanks to the built-in engine running detection and the related programmable time-delayed switching. This also prevents the onboard voltage of the vehicle from becoming too low. It is not necessary to intervene in the system of the vehicle, install a separate motor run sensor or intervene in the CAN bus system. Apart from this detection, the Buck-Boost series equipment can also be switched on with a programmable input.

Programmable and Easy to Use

The Victron Buck-Boost series is fully programmable through a very simple and easy PC application. The output current has an automatic limitation that is adjustable. The automatic stop becomes active as soon as the temperature comes close to a pre-set maximum.

The output voltage is fully adjustable and is independent of the input voltage due to the automatic Buck-Boost control. This control also ensures that the current will never exceed the set value. Also not when the input voltage is higher than the output voltage.

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Additional information

Weight 4.5 lbs


Battery Charge Current


Battery Voltage

12 Volts DC, 24 Volts DC


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