How Much solar to Add??
We dry camp as much as wet camp. I have tow Trojan T-125's up front providng a good long draw for 240ah. I am looking to keep these charged up. 300-400-500 Watts? Waterpump and heater are the two larg...
Forum Discussion
Last winter with Roy in mind, I took the 8-D down to 12.1v resting and put a 220w system on it. I think it tickled it for the 5 hours of brilliant sun available that day, under charge it got up to 13.1v. The panel had only replaced half what was taken out and that was close to 1-1 watt- AH.
So to me it's a watt to AH ratio that will get the job done in a worse case scenario. We run 2w per AH and never have had a issue. The normal weather has been 6 hours of sun in the morning and cloudy afternoons, so my charging has to be done early on. It's easy with a 2-1 ratio and the panels tracking.
So rule of thumb is a good place to start but in the end it is your thumb that rules. Set up for your situation and needs.
So to me it's a watt to AH ratio that will get the job done in a worse case scenario. We run 2w per AH and never have had a issue. The normal weather has been 6 hours of sun in the morning and cloudy afternoons, so my charging has to be done early on. It's easy with a 2-1 ratio and the panels tracking.
So rule of thumb is a good place to start but in the end it is your thumb that rules. Set up for your situation and needs.
