I am running a solix 15, a helix 12, and a garmin 9 with panoptix. I have the solix ran directly to the battery with an inline fuse on 8 gauge wire. What size and kind of battery would I need to be able to run them all day and not have any problems when it comes to starting the big motor. I have a 250 Pro XS. I usually put the Solix on stand by when I am fishing. But with the Helix and the Garmin running I feel like im going to kill my battery. I have a group 29 right now. If the solix is not in stand by when I crank the motor it shuts its self off.