Completely Dead After Rain - Can't Jump

[isaacvz]

Just got my 99 Chris Craft 210 back from storage. Sunny day, ran it up, sounding great. Dropped off the cover to get repaired.
Next day - heavy rain. Go figure.

I come out the next day to the lower unit on the ground, and the boat completely dead. Try to jump it - nothing. All the breakers on the console seem to be fine.

Is there some master breaker? Feeling pretty dumb.

 

[airshot]

Can't speak for Volvo, but my Mercury user had a master breaker on the engine itself..if that tripped, nothing engine related would work. However the dash accessories would work. Just food for thought......

 

[isaacvz]

Can't speak for Volvo, but my Mercury user had a master breaker on the engine itself..if that tripped, nothing engine related would work. However the dash accessories would work. Just food for thought......

Hmm sounds good, there's three breakers together on a box on top of the engine, but they all seem fine. There's gotta be one I'm missing somewhere!

 

[dubs283]

A volt meter will tell you quickly where the loss of voltage is

Start at the battery and keep checking along the circuit until you find it

 

[cyclops222]

The rain ran down your battery to far. Put a 120vac charger on it for several hours on a slow current rate .

 

[Scott Danforth]

Thinking bad connection

 

[isaacvz]

The rain ran down your battery to far. Put a 120vac charger on it for several hours on a slow current rate .

Won't jump.

Thanks all, I will get out there tomorrow when it's warmer with my multimeter and find the issue.

 

[Scott Danforth]

I woul bring tools and 150 grit sandpaper and clean every battery cable terminal and lug in the boat

 

[isaacvz]

I’m seeing about 3V everywhere, but it still won’t start with a jump battery box on it. Gonna pull the bat and charge it up.

 

[Scott Danforth]

It won't jump or change with bad connections

 

[isaacvz]

Just a dead battery…..no idea why the jump didn’t work.

 

[airshot]

The battery may have an internal short that sucks the jump down in power so it doesn't work. One thing to try when that happens is to bypass the battery completely, use jump battery directly to the cables with no connection to the battery at all. If the jump works then...you have a shorted battery. Have dealt with that a number of times over the years.