Victron 100A Buck-Boost DC/DC Converter

Stable voltage and optimal charging – even with varying input.

The Victron 100A Buck-Boost DC/DC converter is an advanced charger that ensures correct charging of your batteries – regardless of whether the generator's voltage is too high or too low. It automatically adjusts the voltage up or down (buck/boost), so your batteries always receive optimal charging.

It is specifically designed for modern vehicles and boats with smart alternators (Euro 5/6), where the voltage often varies and can cause problems for traditional charging solutions.

⚡ Advantages

• Up to 100A charging – perfect for larger battery banks

• Buck-Boost function (automatically raises and lowers voltage)

• Stable charging regardless of generator voltage

• Suitable for both lead-acid and lithium batteries

• Protects the battery from incorrect charging

• Ideal for smart alternators (Euro 5/6)

This DC/DC converter ensures maximum efficiency and lifespan for your batteries – even under demanding conditions.

⛵ Suitable for

• Boats with alternators

• Motorhomes and vans (Euro 5/6)

• Lithium battery systems

• Off-grid installations with engine charging

📊 Specifications

🔧 Installation

The unit is typically mounted:

• Between starter battery/alternator and house battery

• With correctly dimensioned cables and fuses

• Configured for the selected battery type

📦 Package contents

• 1 × Victron 100A Buck-Boost DC/DC converter

💡 Tip from SejlStrøm:
If you have a modern alternator that doesn't deliver stable voltage, a buck-boost converter is almost a must. It ensures that your battery is always correctly charged – and significantly extends its lifespan.