Evolva Future Technology 18650 Battery Charger US Standard Plug (Single Slot) Short Circuit ProtectionThe Power Supply will be anto-recovered when short circuit faults remove Safety:Compliance with TUV EN60950,CBEN60950,BSMI,CE Over Current Protection: The Power supply will be auto-recovered when the over current faults remove Reserve Battery Protection: The charger will be stop output when the battery is reversed