Buck-Boost DC-DC Converter 25A and 50A

The Buck-Boost DC-DC Converters  from Victron Energy will charge a 12V or  24V service battery in vehicles with a smart alternator.  The converter charges the auxilliary battery with a pre-set charge voltage, eliminating  high voltages (e.g Mercedies: 15.4V) and low voltages. 

The Applications  are the controlled charging of the service battery, and the automatic activation and deactivation of electric devices in vehicles controlled by a unique engine running detection protocol (no annoying cables).

Fully Programmable  the converter can be fully programmed by means of a simple and user-friendly PC application (USB type A male to USB type B male cable needed).

One product for 12V, 24V and 12/24V systems  The converter can be fully programmed to charge a 12V or 24V auxilliary battery from either a 12V or a 24V alternator and starter battery.

Engine running detection The converter has a unique engine running detection system. This prevents the converter from discharging the starter battery if no power is being supplied by the alternator.  The converter turns ON when the engine is running and the input voltage exceeds the pre-set voltage. 

Charge current limiter The output current is determined by the following factors.

1) Setting: The maximum required change current is set via the USB connection (with the Windows Converter/Monitor application)

2) Temperature: The internal converter temperature attains the maximum termperature setting, the charge current is automatically limited so that the internatl temperature never becomes impermissibly high.

3) Input current: The maximum input current is set via the USB connection (with the WIndows ConverterMonitor application). The maximum input current setting prevents the stater battery and/or the alternator from being overloaded.  This also facilitates the choices of cable diameter and fuse.