Short in small boats electrical system :(

[Captned]

Howdy all, I have a 15' Edgewater CC and all of a sudden, my battery is going dead in span of 24 hours. I did note a spark when I hooked up my battery cables yesterday and shes dead again today. Any tips on locating the short?

Thanks,

Captned
MBMM

 

[rrrestorer]

Hook up a test light between the end of 1 battery cable and the battery (while the other cable is connected and pull fuses untill the light goes off. that will tell you what is drawing power. If you don't have fuses than disconnect things untill the light goes off, same process, when the light goes off thats what is drawing power.

 

[Pascal]

Pull the fuses/ breakers one by one till the drain/ spark goes away, that will tell you which circuit is causing the drain

 

[Captned]

Thanks guys, will give it a shot...

Captned
MBMM

 

[yachtsmanbill]

Hey Ned... could be a grounded alternator diode also... ws