The Steca PR 2020 IP's overall system is based on the Steca PR line of solar charge controllers. It is designed to resist external environment factors like dust, and high amounts of salt and moisture. With improved charge determination functions, this device has a big display that shows the current state of charge (SOC) in a graphical presentation (in the form of a tank). Its integrated, adaptable SOC algorithm ensures comprehensive battery maintenance. This algorithmic system also guarantees control of the module output, which is capable of connecting with the solar charge controller (up to 480 Wp).