Features and Functions
MPPT Solar Charge Controller for high-quality motor homes, caravans and
marine applications.
VOLTIMA MPPT Solar Charge Controllers with „IU1oU2“ load
characteristic are employed as a link between the solar panel(s) and one
or more batteries.
Using MPPT technology, the charge controller automatically determines
the maximum power yield (MPP) of the solar panels several times per
second. The voltage surplus of the solar panel is transformed to a higher
charging current for the battery. This is achieved through highly efficient,
high-frequency switching controller technology. This surplus charging
current results in short charging times and the optimal power yield of the
solar panels.
MPPT Solar Charge Controllers operate fully automatically. They require
no maintenance and offer the following functionality:
• 10% to 30% MPP charging current increase compared to conventional
controllers. This results from modern controller technology and the
enhanced performance is particularly evident in fall and winter, foggy
weather conditions or in diffuse light.
• Switchable characteristic lines of charging or optimum charging of lead-
gel/dryfit, AGM/fleece or acid/lead-acid batteries, as well as LiFePO4
batteries. (Please consult the table in the section “Instructions for Battery
Charging”).
• The charging voltage is free of spikes and controlled in a way that
prevents overcharging of batteries.
• Unattended Charging: Standard protection against overcharging,
overheating, reverse polarity and back discharge of the battery (in case of
insufficient solar power, such as at twilight, at night etc.).
• Parallel and Floating Operation: Observation of the characteristic lines of
charging, even with simultaneous operation of consumers.
Overcharge protection: Reduction of the charging current of the battery in
case of excessive solar power or a fully charged battery. Immediate
recharging in the case of power consumption always ensures the best
possible charging state of the battery.
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