EverExceed state-of-the-art manufacturing facilities with wealthy experience ensure it's tubular OPzV gelled batteries reliable performance, safety, outstanding battery life and value. Each cell is 100% factory tested. EverExceed tubular OPzV batteries can be used in float or deep cycle (1500 x 80%) service and have a design life of 20 years at 20°C. EverExceed tubular OPzV batteries can be stored up to 2 years at 20°C without fresh charging.