The Battery Tender Junior Is A Small But Powerful 12v Battery Charger And Maintainer Designed For Lead-acid Batteries. It's Perfect For Maintaining Motorcycle, Atv, And Marine Batteries. With Its Automatic Charging And Maintenance Features, The Junior Ensures Your Battery Stays Healthy And Ready To Go. Its Compact Size And Easy-to-use Design Make It A Convenient Choice For Any Battery-powered Equipment.