The Schumacher 1.5 Amp Battery Maintainer Charger makes sure your 12 volt batteries are kept completely charged with a fully automatic system. The Schumacher SE-1-12S Charger will switch off and on as needed so you can safely charge most batteries that need to be stored for long periods. The Schumacher SE-1-12S Maintainer Charger comes with on board features which allows you to mount it next to the battery on infrequently used products, with all the hardware and mounting equipment you need included.