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) Kircuit New Global 31V AC / DC Adapter Compatible for UMLo Model S9 S-9 59 25.9V DC25.9V 25.9 Volt 25.9 Volts 25.9VDC Rechargeable Lithium Ion Li-ion Liion Battery Pack 400W 28Kpa Powerful Suction 6-in-1 Lightweight Stick Vac Cordless Vacuum Cleaner Carpet Hard Floor Pet Hair Model RK-3100500 RK3100500 +31V 0.5A 15.5W DC31V 500mA 15.5Watts 31.0V 0.50A 15.50W 31VDC 31.0VDC 31 V 31.0 VDC - 32V DC32V 32VDC Class 2 Switching Power Supply Cord Cable PS Wall Home Charger Mains PSU (Note: !!! 25.9V is Vacuum's battery voltage. !!! NOT charger's voltage. !!! The charger's voltage is 31-32V. Please Check For Compatibility With Your Unit. Thanks.) Tested Units. In Great Working Condition. !!!Note: Rechargeable batteries don't last forever, the average battery last 1 to 3 years. If the battery is old/bad, it will not accept a charge. But not charger's problem Kircuit AC adapters are tested and designed to meet the power needs of your device. This adapter converts AC power into the DC power required by your device. This supply allows you to operate your device or charge its battery from electrical power outlets. Kircuit Adapters are a portable power source for when your on the go, at home or office. This adapter has been validated and tested to ensure it will work with your device.