I charge my ac200p via 3 series solar panels and it gets to 100% around 1pm. I turn it off till after dark. then I power (via ac) a 35 watt LED light for a few hours. when I go to bed, and turn the entire unit off, it reads about 96 % which I feel is reasonable given the inverter is running for 2 hours. when I power it on on the morning, it reads 68 or 69%, despite being off all night. am I mistakenly putting it on standby and the inverter is running all night? how do I tell? what is standby mode? I believe I hold the button long enough to power it off.
thanks for any help
addendum: today after another disappointing power drop overnight while off, and a couple of espressos, it was at 19%, so I turned it off, dragged it over to my panels, hooked it up to the solar panels, and it came on at 78%! so why am I getting these unreliable readings of soc?? thanks