MPP solar controller for high-quality motorhomes, caravans and boats.

Votronic solar controllers of the "MPP" (Maximum Power Point) series

Which have the "IU1oU2" charging feature, are connected as a link between the solar panel(s) and the batteries.
With MPP technology, the controller automatically determines the maximum power point (MPP) of the solar panels several times per second.
It then converts the excess voltage from the solar module into a higher battery charging current (implemented with high-frequency switching regulator technology with high efficiency).
This increase in charging current ensures shorter charging times and optimal use of the solar system's performance.
MPP solar controllers operate fully automatically, are maintenance-free and offer the following functions:

• The MPP charging current increases by 10-30% compared to traditional controllers (efficiency > 95%) thanks to the latest controller technology (microprocessor).
• The increase in performance is especially noticeable in colder seasons and, among others, in areas with heavy fog, lower and diffuse lighting (in winter).
• For charging lead-gel, lead-AGM, lead-acid batteries or complete LiFePO4 batteries (with integrated BMS, balancing, safety circuit and approval!) at specified nominal voltages and supplying permanently installed consumers connected to these batteries. Systems with specified battery capacities and charging programs.
• The charging voltage is peak-free and regulated so that overcharging the batteries is impossible.
• Two battery charging outputs: Automatic charging of the main supply battery (BOARD I) and backup charging and charge storage of the vehicle starter battery (Start II) (max. 1 A) with overcharge protection.
• Supervision-free charging: Standard protection against overload, overheating, reverse polarity and battery discharge (if solar power is too low, e.g. at dusk, at night, etc.).
• Parallel/buffer operation: Compliance with charging regulations even when consumers operate simultaneously.
• Overcharge protection: Regulates battery charging current if there is too much solar power and the battery is full, and ensures that the battery is as fully charged as possible by charging immediately when power is depleted.
• "IU1oU2" charging feature: A defined charging voltage rise (U1) prevents harmful acid deposition (lead) and ensures even charging of the individual battery cells (lead and lithium), followed by automatic drain charging (U2).
• Charging cable compensation: Voltage losses in charging cables are automatically compensated.
• Built-in mains filter: Problem-free parallel operation of wind and motor generators, mains chargers, alternators, etc.
• CI-Bus connection: for displaying all relevant information on the vehicle's central display
• Measuring power for EBL, possibly an existing electrical block in the vehicle's living area: Enables convenient use of the (solar) power indicator built into the electrical block to control the solar system.
• Please remember to check the compatibility of your Schaudt electrical block (EBL) and the corresponding control and display panel in advance, as we cannot give any guarantee for this.
• Switching output "AES" (only MPP 260 CI, MPP 360 CI and MPP 440 CI): Allows refrigerators with "AES" (Automatic Energy Selector, Electrolux / Dometic) to automatically switch from gas to 12 V when there is a constant excess of solar energy. power - Function.
• Battery temperature sensor connection (product no. 2001): With lead-acid batteries, the charging voltage is automatically adjusted according to the battery temperature, which results in a better full charge of a weaker battery in the cold and unnecessary gassing and loading of the battery is avoided.
• LiFePO4 batteries: Battery protection at high and especially low temperatures Absolutely recommended if the battery temperature can drop below 0°C during operation.
• Ready to connect Votronic solar panels to the LCD-Solar Computer S for optimal system control.