Master breaker?

[VetteLT193]

I need help. I took my almost new Donzi 28 ZXO to get some warranty work done (bilge pump went out). Local place. They mentioned they had battery problems but I didn't think a whole lot of it at the time because they seemed to have solved it and I told them to just plug the boat in....

When I got the boat back about 2 weeks ago I plugged the boat in (built in charger) and went on my way covering it.

Started prepping to go out tomorrow... no power. nothing, no matter what the battery switches are set to.

Any thoughts?

[Boat Boss]

Depending on what engine you have some mercruiser products have a large fuse on the starter. Make sure you have strong batteries then check power going into and out of the starter. This will eliminate that fuse. It is rare for it to go bad.