One thing to remember. If you routinely discharge your batteries below 40% (about 11.9v) you will significantly reduce the life if your deep cycle batteries. They are designed to be discharged down to 20% ( about 11.6v) but battery manufactures tell you not to go below 40%. If you want to prolong the life if your batteries, don't routinely discharge them below 50% (about 12.06v).
__________________
|