I just installed a 100 watt solar panel in my shed to power a 35 watt light. I would like to be able to power the light for four hours a day though most days it will be less than an hour. The system is set up for 12 volts. I calculated the following battery requirement.
35Wx4hr/12V= 11 amp hr
Using 50% as utilization and I got about a 20 amp hour battery. The following two seem to be cost effective and should be more than I need but I don
35Wx4hr/12V= 11 amp hr
Using 50% as utilization and I got about a 20 amp hour battery. The following two seem to be cost effective and should be more than I need but I don
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