Okay, working on an article on keeping a water trough de-iced/ice free. Wanting to do it without plugging into the wall and increasing electric bill or creating a shock hazard.
So, first thought, saw a you tube video on a guy that was aerating his pond using a 12 volt solar panel and a 12 volt bilge pump. He lets it shut down overnight and start on its own in the morning. Here it is.
So, I can't let it shutdown at night because the amount of water is to small and it could freeze solid by morning. Thus I began thinking of a 12 volt battery charger, 12 volt battery of course and then the bilge pump.
Here are the articles.
Solar charger from Northern Tool - http://www.northerntool.com/shop/too...8565_200328565
Bilge pump - http://www.ebay.com/itm/Marine-Boat-...f02880&vxp=mtr
Battery - I currently have one somewhere. Not a deep cycle marine battery, but could purchase one if needed.
Here is my problem. Because of freezing the whole trough overnight, I need to run off of the battery when the sun goes down or on cloudy days. With this current setup, am I drawing more from my battery than I am putting back? Every Saturday putting the 110v charger on the battery for a couple of hours wouldn't be bad, but I can't figure out if I am going to be doing a major overdraw on the battery (assume a typical car battery or deep cycle marine battery) If you need a specific cranking amp for this problem, tell me what size battery to purchase to make this operable.
Okay, anyone, help?????????????? Thanks. Jon