Accessories not working

[NeilE.]

I’ve had our boat, 2021Nauticstar 249 XTS, covered in the backyard for the past 3 months while recovering from knee replacement surgery. Pulled the cover yesterday in hopes of getting her out today when I noticed that I had no accessory power. Trim motor works, trim tabs work, Simrad turns on, command center comes on but no radio, lights, horn, pumps etc. Put the batteries on a charger overnight, no help. Bought a new charger this morning and although it shows the battery charged after several hours I have nothing. The command link shows both batteries near the bottom of the meter. Any suggestions? Is there a fuse I should be looking for? Is it possible that the house battery is just dead? Less than 30hrs on the boat.Thanks.

 

[Scott Danforth]

You have a boat warranty

 

[NeilE.]

I do but would rather fix it and get back on the water if it is something simple instead of waiting for the dealer to get to it.
I thought that is what this forum is for.

 

[Scott Danforth]

call the dealer, ask where the accessory power comes from.

 

[dingbat]

It’s quite possible you have a dead battery especially if you left the battery switch on the entire time.

I would start by measuring the voltage on both batteries.

 

[briangcc]

I'd take both batteries to be load tested. My gut is telling me that you have just enough juice to operate a few low draw accessories but not enough to turn the boat over or other higher draw accessories.

An onboard head unit (radio) with memory will draw a battery down over the length of time it sat unused....which is why I turn my house battery off when not in use.