eeTao 26.5V - 27V Replacement Charger Compatible with juren K-21B Pro K-21BPro K21B P11 22.2V Li-ion Battery Cordless Stick Vacuum Cleaner CZH013265050USWP 26.5V 500mA Power Supply Compatible with 21.6V-22.2V Li-ion Battery 26.5VDC-27V Charger World Wide Input Voltage 100-240 VAC 50/60 Hz. OVP, OCP, SCP Protection.OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection eeTao 30 days Refund. 24 Months Satisfaction Exchange Note: Rechargeable batteries will not be used forever, with an average battery life of 1 to 3 years. If the battery is damaged, it will not accept charging. But it's not a problem with the charger eeTao 26.5V - 27V Replacement Charger Compatible with juren K-21B Pro K-21BPro K21B P11 22.2V Li-ion Battery Cordless Stick Vacuum Cleaner CZH013265050USWP 26.5V 500mA Power Supply Cord Cable PS Wall Home Battery Mains PSU CECCCROHS 100-240