I've done a quick search and cannot find it (Apologies if already here). But the solar power and battery interaction needs to seriously be looked at. I have one solar bank and a solar cell and a full battery bank with 6 batteries. During the day my setup only draws power from the solar cell and not the battery bank. That is a bad design. It should take power from the last point and then if there is no power left in the batteries, it throughputs to take power direct from the solar cell(s), thus the battery bank acts as relay until the batteries have charge in the again. The current design just seems so backwards that the batteries only kick in at night.