Hi all. I have an '87 sea ray seville. Yesterday put it in the water for
the second time this year. Cruised around for hours, lots of time also just
sitting around with the boat still running. When I went back to the boat
ramp as I was waiting for others to finish putting their boats up I turned
it off. When I did this my electronics should have still stayed on (radio,
depth finder) but all went off. I could not even raise my propeller.

I hooked in a second batter with some jump cables and was able to raise my
propeller just fine.

My guess is that my battery is dead and that I was running on alternator?

I took the battery to advanced auto (only thing open at 9pm) and they said
the battery was fully charged and working! Obviously they must be wrong or
their machine doesnt work correctly on boat batteries, even though they do
sell some in there.

What type of place can test my boat battery and sells good boat batteries?
I hope thats what the problem is.

Also, would it be possible for them to test the battery as good but for some
reason it not work in the boat? Cause it starts right up when I jumped it.

Thanks!
--C