UPG is one of the leading global suppliers and distributors of sealed lead-acid ("SLA") batteries. We stock one of the largest inventories of SLA batteries. UPG's state-of-the-art lead-acid deep cycle battery is a valve-regulated type, which fixes the acid electrolyte in a gel or in an absorptive fiberglass mat. The advantage of this design is that the battery needs no water additions, can be operated in any position, and can be used in close proximity to people and sensitive equipment. Some of the best features of UPG batteries are - Maintenance-free, Sealed no leak design, Higher cranking amps, Lower self discharge, Greater vibration resistance, Heavy duty, no corrosion terminals