a black sealed lead-acid battery with two terminals, one marked with a red positive sign, on a white background

maintenancefree uninterrupted applications rechargeable rectangular background industrial electrical connection technology terminals emergency heavyduty equipment component renewable leadacid positive isolated negative capacity amperage terminal reliable battery storage systems voltage durable sealed marked backup energy supply device source system black white ideal power cycle solar sign deep vrla two one red agm sla 12v box ups