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Victron Buck-Boost DC-DC Converter 100A — This is a high-quality constant-current (DC-DC) converter designed for the safe charging of 12V or 24V service batteries in vehicles with smart alternators that meet Euro 5 or Euro 6 standards. Thanks to its sophisticated functionality, this converter prevents both overvoltage (e.g., the 15.4 V typical of some vehicles) and over-discharge, ensuring the efficient and stable operation of your power system.
In modern vehicles, alternators are often equipped with an energy recovery function (regenerative braking) and are controlled via the ECU, which makes it impossible to constantly maintain the required voltage for charging the service battery. It is precisely to solve this problem that the Buck-Boost Converter is used, which stabilizes the charging voltage to a preset level.
Purpose and main areas of application:
- Vehicles with smart alternators and Start-Stop systems
- Motorhomes, RVs, campers, and special-purpose vehicles
- Vehicles with a dual battery system: starter + service battery
- Charging of LiFePO₄, AGM, or GEL batteries from the alternator
Key technical specifications of the 100A model:
- Charging current type: constant, programmable
- Input voltage: 10 to 30 V
- Output voltage: 10 to 30 V, set via software
- Maximum charging current: 100 A at 12 V, 50 A at 24 V
- Maximum input voltage: 30 V
- Standby power consumption: only 7 mA
- Weight: 4.1 kg
- Operating temperature: from -25°C to +60°C
Protection and automatic control:
- Built-in “engine running” detection system — prevents the starter battery from discharging
- Alternative activation via control input: D+ signal, CAN bus, or +15 V voltage
- Current limiting for charging and consumption — to protect the system
- Automatic shutdown in case of overheating or excessively low input voltage
LED status indicators:
IN (input status):
- 🟢 Green — power supplied, converter active
- 🟡 Yellow — low input voltage, device is off
- 🔴 Red — overheating, converter is off
- 🔵 Blue (fast flashing) — motor running, device starting with a delay
- 🔵 Blue (slow flashing) — low voltage, startup blocked
OUT (output status):
- 🟢 Green — battery is normal, no charging required
- 🟡 Yellow — low battery charge
- 🔴 Red — battery not connected or completely discharged
- 🟣 Purple — charging in progress
Programming features:
The device is fully programmable using Victron Energy software, which allows you to:
- set the output voltage and battery type
- set input and output current limits
- configure the on/off logic
A Type A–B USB cable (not included) is required for configuration.
Why choose the Victron Buck-Boost 100A:
- Compatibility with all battery types: AGM, GEL, LiFePO₄
- Stable operation during voltage fluctuations in the vehicle’s electrical system
- Compact housing — easily integrates into any vehicle
- Passive cooling — no noise, no dust, no maintenance
Service and support from Total-Energo LLC:
We offer not only the sale of Victron DC-DC converters, but also full support:
- Official warranty and certified technical support
- Pre-sales consultation regarding compatibility with the battery
- Programming and initial setup tailored to your project
- Installation and connection by specialists
Total-Energo LLC is a reliable supplier of Victron Energy equipment in Ukraine. Order the 100A Buck-Boost DC-DC converter with official support, fast delivery, and confidence in the stable operation of your off-grid power system.