How to fix wheel and battery that fell in salt water

How to fix wheel and battery that fell in salt water
my ipod fell in salt water after 3 days it works when you put it on charger but when you take it out is shuts off

ANSWERS:

Just in case this should still be an issue. Sounds to me like you need a new battery. I could imagine that the LiIon battery did not survive the water exposure. Good Luck