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2. Installation and connection
2-9 Charging the battery
When you put the AC Input Plug of the UPS in a wall outlet (commercial power), a battery charges automatically
starts and the battery will be fully charged within 8 hours.
(A battery charges when the UPS is used or not)
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The UPS has been charged prior to shipment, however, the backup time may be shorter when using the
UPS for the first time due to spontaneous discharge.
We recommend to charge the UPS before using it.
2-10 Measuring the backup time
After "2-8 Checking the operation" is complete, you can start an actual operation, however, we recommend
measuring the actual backup time of the UPS in your surroundings before starting the initial operation. That
gives you a guideline for the battery check.
See also "5-1 Measuring method of the backup time" on page 32.
