The MPPT controller uses an internal converter to adjust the V-A
characteristics of the current source (solar panel) so that it is optimal for
charging the battery. It can therefore utilize energy from solar panels much
better than a PWM controller, which regulates charging only by pulse limiting
the direct connection between the solar panel and the battery, where the pulse
width is proportional to the state of the battery being charged. In other words,
the MPPT controller can generate the ideal voltage and current for charging the
battery from a higher voltage and lower current source. For example, from 30V
and 5A, it generates approx. 15V and 10A. The efficiency of the V-A conversion
characteristic is usually over 95%, so losses are minimal and the controllers
can generally be adapted to different types of batteries for optimal charging.
Specifications: System voltage 12?24V Applicable batteries: Pb AGM, Pb AGM GEL,
Pb liquid, LiFePO4 Max. PV panel power: 520W (1040W-24V) for maximum use of the
regulator. Max. PV panel voltage: 100V (-20°C), 92V (+25°C) Max. charging
current: 40A Max. load current: 20A Own consumption: