if the battery is over 14v its not dying.
what exactly is happening for you to think its dead?
when you disconnect the battery what is the voltage? do you have a load tester?
Yea I'm going to call BS on this, After cleaning equipment for prolly 3 years now, the grease alone is almost impossible to completely remove unless your giving them steam baths.
what ship line was this? We cruise alot, I have never seen their hands out, and most seating is always prearranged, I have also never seen a gratuity package???