well there's something else for the BOB..a 20 pound car
battery..well if you were on the road with a earthquake
or whatever right behind you and the battery fritzed out
you would on the spot..with a traffic jam behind you and your
car being pushed into the ditch..if you lived someplace where
evacuations are common..the Keys or the Gulf coast..you may
want to think about having the smallest battery that will
start your car packed safe in you trunk along with water
and food..