3.4 Battery and Charging:
• When the UPS is connected to AC, the charger will charge the battery fully in
about 10 hours.
• When the battery is used up, please turn off the UPS and charge the battery for a
least 10 hours when. Then turn on the UPS
4.0 Main Features
4.1 Unattended Operation
• Please connect the UPS to AC and press the ON button on the front panel, the
UPS is turned on and the AC outputs stabilized voltage.
• When AC fails, UPS will supply power to the equipment immediately. And when
the battery is used up, UPS will turn off automatically.
• When AC comes back, UPS will turn on automatically.
4.2 Protection
• Battery discharge protection: when the battery discharges and the UPS is in
inverter mode, the UPS will check and monitor the working status of the battery;
when the battery voltage drops to the limited lowest voltage, the inverter will turn
off automatically and protect the battery; When AC comes back, the UPS will
turn on automatically.
• Short-circuit Protection: when the UPS is in inverter mode and there is shock or
short-circuit, UPS will output limited currency, protecting the UPS( When in AC
mode, the UPS will be protected first by input fuse and then transfers to the
inverter working mode).
4.3 Four Kinds of Alarm Function
• When AC fails, and the UPS supplies power, UPS will alarm once every 10
seconds and the beep stops about 40 seconds later.
• When the battery is nearly used up, the UPS will alarm automatically and the
beep frequency is once every 1 second.
• Overload, when the UPS is overloaded, UPS will alarm once every 0,5 second
• Fault, if there is a faulty operation of the UPS, UPS will alarm continuously.
4.4 Lock Phase Function
In AC mode, the UPS system automatically tracks AC phase and ensures that the
output wave form of the inverter is the same with AC voltage wave form. In this way, it
reduces the peak pulse and surge voltage to minimizes the interference and damage
to the equipment.
