Knowledge & Tips — offgrid

Summer operation of solar systems in motorhomes – managing heat correctly In summer, equipment compartments in motorhomes, camper vans, and expedition vehicles can heat up significantly. Temperatures of 40 to 60 °C are not uncommon. These conditions pose a particular challenge even for high-quality solar charge controllers like Victron MPPT SmartSolar and BlueSolar. How heat actually affects Victron MPPT solar charge controllers Victron MPPT controllers are robustly designed and built for high temperatures. Nevertheless, there are physical limits here as well: Nominal power is generally achieved up to an ambient temperature of approximately 40 °C. If the temperature rises above...

Typical installation errors with Victron MPPT controllers – Technical tips MPPT solar charge controllers, even high-quality models such as Victron SmartSolar and BlueSolar, can overheat due to improper installation. Often, the controller itself is not the problem, but rather the environment and the installation method. Common installation errors Insufficient clearance from the wall (recommended: 5–10 cm for air circulation) Installation in enclosed control cabinets without ventilation Heat sources directly next to the controller, e.g., inverters or chargers Lack of airflow or convection Horizontal instead of vertical mounting, which promotes air buildup Technical background Victron MPPT controllers reach their nominal output...