1. Item features an efficient MPPT control algorithm to track the maximum power position of the PV array. Greatly improve the utilization of solar panel. Its intelligent LCD and upper PC display, mostly convenient for customers to check, records and parameter setting. It widely used in off-grid solar system, communication base station solar system, household solar systems, street light solar systems, field monitoring and other fields etc.
2. For this mppt solar charge controller , you need to connect with battery first , then connect with the solar panel . Because this solar charge controller , the power is supplied by the battery , so no matter day time or night time , if this solar charge controller is connected with battery , it will be on all the time when it is turn on .