the AA on board cooler is a joke. not even close. you can carry about 22 dozen buns in it! a buddy keeps his marine battery in there. i always thought maybe i could charge extra to have a girl jump out of it at a party–(a skinny girl). most of the time i use it for nothing.
i have two “Extreme” coolers from Walmart. they do a great job. ice on drinks, ice packs on food. bigger event just needs a bigger cooler and more ice.