inputs.text: not greatest - battery 3 years bigger standard german bmw car battery no big deal put side optional side mounts first thing noticed definitely goes dead rather quickly tailgating etc compared deep cycle like optima yellow top worse part shortly year car low voltage indicator light would come car sat days contacted kinetik said allowed voltage get low car not use 3 months purchased ctek charger per recc plug car regular basis get voltage cannot complain bad battery still working routine charge would try different brand especially would not keep voltage 13 months company blamed not replace