2004 opti power issue

[Bueller]

Battery fully charged. Powered up before left house to check fuel, all systems go. Get to lake, trim up motor, all good. Enter code on keypad, beeps once, all good. Back in boat, won’t crank. Power down and back up several times, no crank. Pull boat out, no power to trim. Power down and back up, steady, near constant beep. Drove home, not happy.

Could it be a fuse? Doesn’t seem like a bad cranking battery, but maybe? Any thoughts?

[silvertalon]

There's no motor info here. HP? S/N? Did you try a booster/Jumper to see if motor will crank? What do you mean - "power down and back up" are you looking at a volt gauge or do you mean power on and off? Check your battery connections and try a jumper/booster 1 st.