Many ZKTeco Time and Attendance and RFID terminals operate on 12V DC. In order to provide uninterrupted power or in the event direct power is not available, the 12V 2000mAh Mini-UPS Battery Backup ensures your terminal remains operational.
Under normal conditions and when fully charged, the mini-UPS is in idle state and filters power to the terminal from the power source. When power is interrupted the mini-UPS automatically discharges reserve power from its battery. Once power resumes, the mini-UPS will automatically re-charge and resume filtering.