i've used all the batteries mentioned ,at one time or another.yellow tops are fine for your car ,not so much for bigger systems,let say 2000 watts rms or more.now the kinetik batcap ,xs stinger,odyssey ,these batteries can be used as car a system batteries as well as to start your car or truck.in my experience with these batteries the kinetik batteries just dont last under the hood ,they tend to swell on the sides within a year or two ,not saying that they are not good batteries just not for starting your car.now the batcap and xs power batteries are fine .i ran my xs power for 2 years and it still held good power and worked great ,only reason for selling it was to get cash for my batcap.now my batcap has out preformed any battery that i have used in the last 5 years hands down,power wise in the lanes and long lasting performance .