automatically except in Battery mode or during battery self-test.
4.6.4.2 It’s suggested to charge batteries at least 10 hours before use. Otherwise, the backup time may
be shorter than expected time.
4.6.4.3 The charging current can be changed from 1A to 12A for long run model via LCD or software.
Please make sure that the charging current is suitable to battery specification.
4.6.5 Battery mode operation
4.6.5.1 When the UPS is in Battery mode, the buzzer will beep according to different battery capacity. If
the battery capacity is more than 25%, the buzzer will beep once every 4 seconds. If the battery
voltage drops to the alarm level, the buzzer will beep quickly (once every sec) to remind users that the
battery is at low level and the UPS will shut down automatically soon. Users could switch off some
non-critical loads to disable the shutdown alarm and prolong the backup time. If there is no more load
to be switched off at that time, you have to shut down all loads as soon as possible to protect the
devices or save data. Otherwise, there is a risk of data loss or power failure.
4.6.5.2 In Battery mode, if buzzer sound annoys, users can press the button to mute the
buzzer.
4.6.5.3 The backup time of the long-run model depends on the external battery capacity.
4.6.5.4 The backup time may vary from different environment temperature and load type.
4.6.6 Turn off the UPS with utility power supply in AC mode
4.6.6.1 Turn off the inverter of the UPS by pressing button for at least 1s, and then the
buzzer will beep once. The UPS will turn into Bypass mode.
4.6.6.2 In Bypass mode, output voltage of the UPS is still present. In order to cut off the output, switch
off the input breaker. A few seconds later, there is no display shown on the LCD panel and UPS is
complete off.
4.6.7 Turn off the UPS without utility power supply
4.6.7.1 Turn off the UPS by pressing the button for at least 1s, and then the buzzer will
beep once.
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