No waiting for service or emergency trucks. No need for jump-starts (jump-starting damages the battery, alternator and potential major damage to computers and electrical system). No more down time or lost man hours. It is preventative maintenance that pays for itself 1st time it saves you. Using portable battery chargers/boosters, dangerous jumper cables, or calling a tow truck means you have already experienced a damaged battery (first time battery goes dead it has lost 1/2 its service life). Universal design fits top and side post batteries. No hardwiring or modifications required. Transferable. Manufactured to ISO, USCG, and SAE standards.