It depends on the path(s) you've set up to deliver power to the other equipment. Think about other equipment on the car that also needs power. How often do those items need power and how much power do they need?
Also it depends on how the design has been executed. If there is a ground short in the main feeds is there any protection from a full battery discharge? Has the path been made longer and do the connections have more or less resistance between the power source and the final equipment?
