What size,or how many watts are 3 x panel. I'll do some maths, what do you require to run. This weekend hot right, right Supplied lighting every night via two led, out of an 18 AH motor bike size battery. Engel kept food cold and a doz can after we forgot ice that we paid for. So had to chill them down. Never even looked liked using a panel. Would have needed if staying a day or too longer. Guys here use way too many panels etc, you could light a city