Schumacher SC-600A SpeedCharge High Frequency Battery Charger is a fully automatic battery charger that uses advanced technology to charge up to twice as fast as conventional chargers. It offers 6-, 4-, and 2-amp charging modes to efficiently charge and maintain connected batteries. The 50-amp clamps are compatible with both top and side-mounted battery posts. Its easy-to-read LED indicators show battery charge status at a glance. http://amplify.com/u/bsie0