Some links - 12 doesn't sound nearly enough - I have 10 on mine for a shorter run from my high-voltage panels....
http://www.drydenaqua.com/instruments/aquatraul/voltage_drop_in_wires/voltage%2520drop%2520in%252012v%2520dc%2520wires.htm http://www.powerstream.com/Wire_Size.htm shows a 4V drop with 12 at 50', with only 7.9 being delivered, at 8, 1.6/10.4 However, if you have a higher voltage panel, using mppt controller, likely you're putting in more like 18V, which helps (and is another reason to use the higher voltage panels. That changes the equation; the first link will allow you to calculate - the second only has 48 as the next up from 12V... HTH L8R Skip -- Morgan 461 #2 SV Flying Pig KI4MPC See our galleries at www.justpickone.org/skip/gallery! Follow us at [EMAIL PROTECTED] and [EMAIL PROTECTED] "Twenty years from now you will be more disappointed by the things you didn't do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover." - Mark Twain
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