... off the rapid charging function,antomatic transfer to trickle-charging,insure the battery can be fully charged,and not over-charged ... .8.Over-temperature protect:(.60°C use) the battery and charger temperrature is too high and it will auto-cut ... Auto-identify function,indicate the non-rechargeable battery,short-circuit battery,defective battery,then the charger will not charge to protect using safety ...