F&H UND Series battery are specially designed to have a large amount of stored current discharged between charging sessions, with very heavy non-porous battery plates to withstand repeated major discharging and charging cycle (deep cycle). The Deep-cycle batteries are made of the different chemistry for the plates active paste material, and a slightly stronger electrolyte than normal battery electrolyte, which allows for a much longer life in deep cycle applications Features&Benefits Capacity: 12 - 225 Ah Excellent cycling capability Excellent Recovery from Deep Discharge Longer Life in Deep Cycle Applications Very high energy density UL recognized Applications General Electronics Medical Mobility Telecom Electric bicycle Golf car