Victron Buck-Boost DC-DC Converter 25A Charge Booster/Charger Converter

Efficient Battery Charging with the Victron Buck-Boost DC-DC Converter 25A Charging Booster/Charger for Vehicles with Smart Alternator

The Victron Buck-Boost DC-DC Converter 25A Charging Booster/Charger is your solution for charging a 12 V or 24 V battery in vehicles with a smart alternator (regenerative braking, Euro 5 and Euro 6 engines). This converter charges your auxiliary battery with a preset charging voltage, eliminating both high (e.g., Mercedes: 15.4 V) and low voltages.

Smart Engine Detection

Prevent deep discharge of your starter battery with the built-in engine-on detection system. Alternatively, you can activate the converter via a programmable input (D+, CAN-Bus* or (+)15 terminal).

Fully Programmable

Use the user-friendly PC application to fully program the converter according to your needs. All you need is a USB Type A to USB Type B cable.

Flexibility for 12 V and 24 V Systems

The Victron Buck-Boost DC-DC Converter is designed to charge both 12 V and 24 V auxiliary batteries via a 12 V or 24 V alternator or starter battery.

Adjustable Charge Current and Input Current Limit

The output current is determined by the maximum charge current, the maximum input current, and the converter's maximum operating temperature limit.

Practical Status Indicators

With the LED status indicators, you always have an overview:

Input (LED):

• Green: Converter on
• Yellow: Input voltage below threshold, converter off
• Red: Overtemperature, converter off
• Blue, fast flashing: Engine running, converter switches on after set delay
• Blue, slow flashing: Undervoltage at input, converter off

Output (LED):

• Green: Converter off, battery voltage normal
• Yellow: Converter off, battery voltage low
• Red: Converter off, battery empty or not connected
• Purple: Converter on

Documents & Downloads

• Datasheet
• Manual