Solar on a cloudy winter day?
I recently got a deal on a suitcase style 120 watt system with a 20 amp controller. I wanted to test it so I hooked it up and attached it to my old trolling motor battery. The controller indicates i...
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Clouds reduce the available amps. 0.8 amps could indicated the battery is charged or shot. With sun, panel pointed at the sun and discharged battery you should get more amps.
Hook a digital voltmeter to the Trojans. The voltage should be about 14.4V for bulk charging and taper to 13.4 for float with no house loads.
For refernce a fully charged battery at rest will read 12.7V and 12.1V is 50% discharged. Look up the exact specs for your batteries.
Yes the panel will help but is limited and won't keep the batteries charged unless you have very minimum usage.
Hook a digital voltmeter to the Trojans. The voltage should be about 14.4V for bulk charging and taper to 13.4 for float with no house loads.
For refernce a fully charged battery at rest will read 12.7V and 12.1V is 50% discharged. Look up the exact specs for your batteries.
Yes the panel will help but is limited and won't keep the batteries charged unless you have very minimum usage.
