CSBattery GB series batteries are 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. The CSBattery  durable AGM battery uses a different chemistry for the plates  active paste material, and a slightly stronger electrolyte than  normal battery electrolyte, thus the GB range features 30%  higher cyclic life with 10 years of float life when compared to  the standard Duration range.