the next is to test the solar batteries, Measure the Battery Voltage, make sure the battery voltage is not too high nor too low.If the output does not reach the defined value, it probably the solar controller that has problems, replace the charge regulator to try. Measure the terminal output voltage of the solar charge controller, examine whether the output voltage is within the proper range.This is when an extra charger is needed to charge the battery. If the actual voltage of the battery is less than 20% of the nominal voltage. It is also necessary to measure the voltage of the battery. If the voltage cannot be measured, it may be a problem with the solar panel or rectifier diode. Use a multimeter to measure the entire system, from the solar battery and solar charge controller to the solar panel, first disconnect the solar panel and measure the voltage, as long as there is sunlight, there will be solar output.(Note: The Panels, charge controller, and battery must be configured correctly.) To diagnose the problem, do the following: If the solar battery is hooked to the solar system but doesn’t charge properly, the failure is likely to be caused by a battery problem, wrong system wiring, or a problem with the solar charge controller settings. Solar Charge Controller not Charging Battery? Solar Charge Controller not Showing amps.How can I check that my solar charge controller is working?.how to troubleshoot a charge controller.Load output on solar charge controller not work?.How to Read Solar Charge Controller Error Code?.Will a solar panel charge a dead battery?.Solar Charge Controller not Charging Battery Treatment:.The battery is Fully Charged but Run out Soon.Solar Panel Charge Controller Enters Charging Protection Mode to stop the charging.Solar Charge Controller not Charging Battery Factors Checklist.

Solar Charge Controller not Charging Battery?.

Solar powered keyboard charge time