World Wide Input Voltage 100-240VAC 50/60Hz. OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection). Tested Units. In Great Working Condition. eeTao 30 days Refund. 24 Months Exchange. eeTao 42V AC / DC Adapter Charger Compatible with ANCHEER 20 26 Inch 20'' 26'' 36V 8Ah DC36V 8000mAh 36.0V 8.0AH 36 Volt Lithium-Ion Battery Folding Electric E-Mountain E-City Bike Commuter Mountain Bicycle City Ebike +42V 42 Volts DC42V 42VDC 42 V 42 VDC Power Supply Cord Cable PS Battery Charger Mains PSU (⚠️with Barrel Round Plug Tip. Please Check For Compatibility With Your Unit. Thanks.) Compatible with: ANCHEER 20 Inch 36V 8Ah Lithium-Ion Battery Folding City Commuter Electric Mountain E-Folding Bike Bicycle E-Bike; ANCHEER 26 Inch Wheel 36V 8AH Lithium Battery Electric Bike Mountain Bicycle Folding City E-Bike Power Supply ⚠️!!!Note: Rechargeable batteries don't last forever, the average battery last 1 to 3 years. If the battery is old/dead, it will not accept a charge. But not charger's problem. If you're not sure whether battery or charger is dead or not. You must have a volt meter in order to tell whether or not a charger is working. eeTao 42V AC / DC Adapter Charger Compatible with ANCHEER 20 26 Inch 20'' 26'' 36V 8Ah DC36V 8000mAh 36.0V 8.0AH 36 Volt Lithium-Ion Battery Folding Electric E-Mountain E-City Bike Commuter Mountain Bicycle City Ebike +42V 42 Volts DC42V 42VDC 42 V 42 VDC Power Supply Cord Cable PS Battery Charger Mains PSU (⚠️with Barrel Round Plug Tip. Please Check For Compatibility With Your Unit. Thanks.) CECCCROHS 100-240