UPG UB-31 12V 100AH Dual Post AGM Battery Group 31 is a reliable and high-performance marine battery designed to meet the demands of marine applications. With a voltage of 12V and a capacity of 100AH, this battery provides long-lasting power for your marine equipment. The dual post design with the positive terminal on the left ensures easy installation and compatibility with a wide range of marine systems. Trust UPG UB-31 for a dependable power source on your marine adventures.