The UPG UB1220T (12V 2.2AH), Sealed AGM battery is a non-spillable state of the art design battery. 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. The specifications on this battery are length = 5.91 inches, width = 0.79 inches and height (including terminals) is 3.5 inches. The 20 hour rating on this battery is 2.0 amp-hours.