(Note: Output 35V. !!! 22.2V is Vacuum's battery voltage. !!! NOT charger's voltage. Please Check For Compatibility With Your Unit. Thanks.) New Global 35V AC/DC Adapter Compatible with Electrolux WellQ7 Well Q7 22.2V 2000mAh 44.4Wh DC22.2V 2.0Ah 44.4 Wh 22.2 Volt 2000 mAh 22.2 Volts 2.0 Ah 22.2VDC 2Ah Lithium ion Li-ion Liion Battery Pack Model WQ71-P5OIB Hard Floor Lightweight Cordless Stick Vacuum Cleaner DC35V 0.5A 17.5W Power Supply Cord Cable PS Wall Home Charger Mains PSU Compatible with: Electrolux WellQ7 EHVS35S2AD EHVS35S2AU Lightweight Cordless Stick Vacuum Cleaner; Electrolux WellQ7 EHVS35P2AI EHVS35P2AT Pet WellQ7Pet Lightweight Cordless Stick Vacuum Cleaner; Electrolux WellQ7 EHVS35H2AQ Hard Floor Lightweight Cordless Stick Vacuum Cleaner; Ktec Model KSC-18W-350050HU KSC-18W350050HU KSC18W-350050HU KSC18W350050HU ANC No.: A11763035 Power Supply !!!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. Compatible with listing item ASIN: B0BFJ8C949 -- Compatible with Electrolux WellQ7 Stick Cleaner Lightweight Cordless Vacuum with LED Nozzle Lights, Turbo Battery Power, Motorized Bristle Nozzle for Carpets and Hard Floors, in Denim Blue / B0BFJ93NPY -- Granite Grey / B0BFJ9ZKTH -- WellQ7 Pet PetPro+ Removing Pet Hair from in Indigo Blue / B0BFJB6PYN -- Shale Grey / B0BFJBSZQB -- WellQ7 Hard Floor 5-step filtration system, PowerPro Roller, for Hard Floor surfaces, in Soft Sand Onerbl AC adapters are manufactured with the highest quality materials tested and designed to meet the power needs of your device. This power supply allows you to operate your device or charge its battery from electrical power outlets.This adapter converts AC power into the DC power required by your device. Onerbl adapters are great solution during travel.This adapter has been validated and tested to ensure it will work with your device.