Opps, sorry for missing the details. I run one Scotty electric off the battery, no ff. I wouldn't worry about the ff as they draw hardly any amps. I've run my dr off that battery for multiple trips w/o recharging. Like ET said, you should get a few days worth running. If you buy a battery checker at the end of your fishing day just check to see how much jiuce you have left. It's going to depend of course on how good the fishing is - how often you're bringing the weight up.
Hope this helps. Definately buy a battery checker! (I forget what they call them. They suck up the water and measure the charge).