Solar power

I decided to test out the solar panels and the Steca 30A charger. I ran the batteries down to the point when the regulator said no more it is deeply discharged (30%) and turned off the output (Ceiling lights) I then went to bed. At around 0930 hours we had a look and even the poor sunshine that morning had it back to 97%. Throughout the day periodic use of the lights (a 5a drain) and the charger is still showing 100%