The Steca PR 15-15 series of charge controllers is the highlight among the solar charge controllers. The latest charging technologies combined with a further significantly improved Steca-AtonIC state of charge determination result in optimum battery maintenance and control of the up to 900 Wp module output which can be connected. A large display informs the user about all operating states with the help of symbols. The state of charge is shown visually in the form of a fuel gauge. Data such as voltage, current and state of charge can also be shown digitally as a number on the display. The controller also has an energy meter that the user can reset himself. Hybrid controller -State of charge calculation by Steca AtonIC (SOC) -Automatic voltage adjustment -PWM control -Multi-level charging technology -SOC-dependent load cut-off threshold -Automatic load reconnection -Temperature compensation Common positive ground or negative ground of a terminal -Integrated data logger -night light function -Self-test function -Monthly maintenance charge https://elecena.pl/product/17991422/pr1515-solar-charge-controller-15-a 2021-04-28 https://elecena.pl/product/17991422/pr1515-solar-charge-controller-15-a 2024-08-03 https://elecena.pl/product/17991422/pr1515-solar-charge-controller-15-a 2025-01-26 https://elecena.pl/product/17991422/pr1515-solar-charge-controller-15-a 2025-04-04