Please note: This product is NOT recommended for charging LFP battery banks! Instead, use a proper DC-DC Charger like the Victron Orion-Tr Smart DC-DC Charger line.

Victron's Buck-Boost DC-DC Converter is a high-current DC-DC converter that may also be used to charge 12V or 24V Pb-based service batteries in vehicles with a smart alternator. The converter will charge the auxiliary battery with a single pre-set charge voltage, eliminating high voltages and low voltages. There is no charge profile, as this is not technically a charger, so care is needed to ensure that the appropriate single output voltage for your Pb battery is selected.

Deep discharge of the vehicle's starting battery is avoided by a built-in "engine running" detection system. Instead of this detection system, the converter can also be activated by means of a programmable input (D+, CAN bus or (+)15 connection).

The converter can be fully programmed by means of a simple and user-friendly PC application. (Requires USB type A male to USB type B male cable, not included)

The converter can be programmed to charge a 12V or a 24V auxiliary Pb battery from either a 12V or a 24V alternator and starter battery.

The output current is determined by the following factors:
• The maximum charge current setting.
• The maximum input current setting.
• The maximum operating temperature limit of the converter.

Input status indication (LED):
• Green:converter on.
• Yellow: input voltage below threshold, converter off.
• Red:over temperature, converter off.
• Blue (quick flash): engine running, converter will start after preset delay.
• Blue (slow flash):the converter is OFF and activation is blocked due to low input voltage.

Output status indication (LED):
• Green: converter off, battery voltage normal.
• Yellow: converter off, battery voltage low.
• Red: converter off, battery discharged or not connected.
• Purple:converter on.