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The buck-boost dc-dc voltage converter from Victron Energy (mpn ori303050000) is a converter for charging a 12v/24v service battery in vehicles with an intelligent alternator. Since these alternators (powered by the on-board electronics of Euro 5 and 6 engines) do not always output the correct charging current, a dc-dc converter is crucial to properly charge the service battery. The converter charges the auxiliary battery at a preset charging voltage, eliminating high voltages or low voltages.


  • System for detecting when "engine running
  • Fully programmable
  • One product for 12v, 24v and 12/24v systems
  • Charging current and input current limitation
  • LED status indicators for input and output

System to detect when "engine running

Deep discharge of the vehicle's starter battery is prevented by a built-in system that detects when the "engine is running". however, instead of this detection system, the converter can also be activated by a programmable input (d+, CaNbus or (+)15 connection)

Fully programmable

The converter can be fully programmed by means of a simple and user-friendly PC application (a cable usb type a connector to usb type b connector is required)
The converter can be programmed to charge a 12v or 24v auxiliary battery from either a 12v or 24v alternator or starter battery

Charging current and input current limitation

The output current is determined by the following factors:

  • The setting of the maximum charging current
  • The setting of the maximum input current
  • The limitation of the maximum operating temperature of the converter

Technical data

  • Input voltage range: 10-30V
  • output voltage range: 10-30V
  • Max. Charging current: 12v: 50a - 24v: 25a
  • operating temperature range: -25°c - +60°C
  • Weight: 1,4 kg
  • dimensions: 213 x 120 x 30 mm

Scope of delivery:

1x Victron buck-boost 50a dc-dc converter (mpn ori303050000)
1x instruction manual

Victron_Buck-Boost_Konverter_Datenblatt.pdf Download
Victron_Buck-Boost_Konverter_Manual.pdf Download
Manufacturer: Victron Energy
Weight: 1,4kg
ean: 8719076023128
max. charging current: 50A
mpn: ORI303050000 Reviews with
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