Valve-regulated sealed lead acid (maintenance-free)
Low failure rates
UPG’s state-of-the-art lead-acid deep cycle batteryis a valve-regulated type—sometimes called “sealed” or “maintenance-free”—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. These UPG AGM batteries are made in China and distributed from Dallas, Texas. Over the last 5 years, Unbound Solar has sold thousands of these reliable batteries. We use them in our own backup power systems in our office and warehouse. We have had less than 5 batteries that had to be replaced under warranty. We can recommend them without reservation.