We forgot to put one of the plugs in on our jetski and of course it filled up with salt water over night!?

Question

What are our chances that only the battery is bad??

Answer 1

If the motor wasn't running - you are fine!  Just replace the battery but then make sure to clean all the salt water off, especially the metal parts or you will start getting corriosion.

We sink snowmobils all the time in Wisconsin during the waterskip days and as long as you kill the engine before going under all is good!

Answer 2

pretty good, jet ski's are built to withstand water...