Charger detects batteries that have open cells or are below a safe charging level.
The L.E.D. indicates a disqualification and discontinues the charging process. 1st charge stage reduces sulfation of the battery system by use of an 11 minute algorithm. Charges at Constant Voltage until the battery system is fully charged then switches off. The charger maintains the battery and monitors its capacity. If the capacity drops below a specified point the charger starts to re-charge the battery.