charge controller data display incorrect?
I have just installed a 90watt panel on the roof of my truck camper and connected it to a HQRP controller with remote display, and the controller to the battery, which is group 24 84 amp hour battery. All polarities are correct. Controller says charging at various voltages between 13.8 and 15.8, and seems to be working well. However, I do not trust the readouts--when it says the battery is at 100%, a momentary load or shade will drop the SOC reading to about 50%! I know the battery can't lose half its charge in 5 seconds of shade or with just a LED interior light on for a few moments, so what would cause that? When I turn the light off or the sun hits the panel again, it immediately goes back to reading 100% SOC. Also, the green "charging' light is always on during the day even when it says 100%, isn't it supposed to go off when the battery is charged? I guess it is charging the battery, but I don't trust the SOC reading. Once the sun goes down, shouldn't the SOC stay close to 100% if there is no load? Any ideas?
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