The Hawkins Autopro 35 is a three stage temperature compensated fully automatic microprocessor controlled units. The three charging stages are identified as Bulk, Absorption and Float. These chargers are suitable for charging all types of Lead / Calcium-, Flooded-, Maintenance Free-, Sealed-, Gel and AGM (Absorbent Glass Mat) batteries.
During the first charging stage, a constant current is applied replacing the bulk of the battery energy. During the second charging stage, the battery terminal voltage is held constant while the charging current reduces to a minimum and the final energy is absorbed by the battery. After the battery has been fully replenished the charger will switch to the last stage maintaining the battery terminal voltage at the float point indefinitely.
