anyone have a solar panel on there roof???

[chiefdog]

I have a dual battery system on a stock td42 that includes a allrounder 760 cca starting battery and a 105 ah true deep cycle too........couple with a 150 amp projector management system it would be good and is....but i am thinking of a small solar panel on the roof.does anyone have any advice???

[Ferwoaza]

The size of the solar panel depends on what your running off your 2nd battery daily.

My setup, the only things that run off the 2nd battery are a 40lt Waeco fridge and sometimes a 12v 11w fluro. I've found an 80watt solar panel and good weather can pretty much run this setup indefinately. Without good weather, I've got around 2.5 days in a fully charged battery to wait for good weather

If your doing long stays, solar is ideal. If your only running a fridge and doing weekend work, probably not needed.

[Red Dog 4x4]

I have a 80watt panel on a tool box on my tray back with a 10amp req charging two 230amp/hour 6volt battires, with this set up in the sun all day my two 6volts are sitting around 12.9-13.0 volts even with a trailblazer running off them.

[mavzilla]

I have put 2-120 watt solar panels on my roof rack to run my 60 litre trail blazer and a invertor. I can leave my fridge on without any worries as long as i want. I have had the fridge and invertor for a long time and experimented with battery setups, with a standard battery and deep cycle i had trouble with the deep cycle flattening and not charging up. I changed to a battery called an allrounder (cranking and deep cycle) in both positions and have never had a problem and they charge up real nice.even in dull weather it is still charging. Oh ya ya need a 20amp reg to suit 2 panels. down side is i lost 3 quarters of my roof space