Compared with other battery, npp 65ah ssolar battery with smooth discharging voltage and mild discharge platfrom. npp promise every battery with enough capacity and work well. 【dimention for 65 amp elevator battery】tl1255 or fp12550: inch, weight: 38.1 lbs. maintenance-free and spill proof because of the agm & vrla (valve regulated) technology that eliminates spills and overpressure and with low self-discharge rate, less than 3%. 【wide application for 55ah upc battery】 used for solar panel wind energy storage.