UpBright 22.5V AC/DC Adapter Compatible with UMLo Model V11 V 11 18.5V 4000mAh 18.5VDC Lithium Li-ion Battery Pack 300W 28Kpa 6 in 1 Lightweight Cordless Stick Vacuum Cleaner Power Supply Cord Charger - UMLo Model V11 Power Supply

• 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. UpBright 30 days Refund. 24 Months Exchange. UpBright New Global 22.5V AC / DC Adapter Compatible with UMLo Model V11 V 11 18.5V 4000mAh DC18.5V 4.0Ah 18.5 Volt 4000 mAh 18.5 Volts 4.0 Ah 18.5VDC 4Ah Lithium ion Li-ion Liion Rechargeable Battery Pack 300W 28Kpa Powerful Suction 6 in 1 Lightweight Cordless Stick Vacuum Cleaner Pet Hair Carpet Hard Floor +22.5V DC22.5V 22.50V 22.5VDC 22.50VDC 22.5 V 22.50 VDC Class 2 Switching Power Supply Cord Cable PS Wall Home Charger Mains PSU ⚠️!!!Tips: 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.