Thought I would post an FYI due to hearing about someone blowing up a battery latelyIf you jump a battery (car/truck or boat) do it properly.Think of it as making a loop from dead battery to live battery back to dead battery. Connections should be made in this order:1. Connect one end of the Positive(+) cable to the Positive(+) post of the dead battery.2. Connect the other end of the Positive(+) cable to the Positive(+) post of the good battery.3. Connect one end of the Negative(-) cable to the Negative(-) post of the good battery.4. Connect the other end of the Negative(-) cable to the dead battery (better to connect to a ground on the vehicle but boats dont always have that)