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) UpBright New Global 30V AC / DC Adapter Compatible with Yunjetek Model No. S7C KJHKH-127 KJHKH127 25.9V 2200mAh 25.90V 2200 mAh DC25.9V 25.9 Volt 25.9 Volts 25.9VDC Rechargeable Lithium ion Li-ion Battery Pack 300W 26Kpa Powerful Suction Lightweight Handheld Stick Vac Cordless Vacuum Cleaner Hard Floor Carpet Car Pet Hair Compatible with: 3YE Model GQ18-300050-AU GQ18-300050AU GQ18300050-AU GQ18300050AU Dong Guan City GangQi Electronic Co., Ltd 30V +30V 0.5A 30.0V 500mA DC30V 30 Volt 30 Volts 30VDC 30.0VDC 30 V 30.0 VDC Class 2 Switching Power Supply Cord Cable PS Wall Home Charger Mains PSU 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 Tested Units. In Great Working Condition. UpBright 30 days Refund. 24 Months Exchange UpBright New Global 30V AC / DC Adapter Compatible with Yunjetek Model No. S7C KJHKH-127 KJHKH127 25.9V 2200mAh 25.90V 2200 mAh DC25.9V 25.9 Volt 25.9 Volts 25.9VDC Rechargeable Lithium ion Li-ion Battery Pack 300W 26Kpa Powerful Suction Lightweight Handheld Stick Vac Cordless Vacuum Cleaner Hard Floor Carpet Car Pet Hair 3YE GQ18-300050-AU +30V 0.5A 30.0V 500mA DC30V 30 Volt 30 Volts 30VDC 30.0VDC 30 V 30.0 VDC Class 2 Power Supply Cord Cable PS Wall Home Charger Mains PSU CECCCROHS 100-240