2 Installation and connection
2-4 Battery charge
BW40T/BW55T/BW100T/BW120T
24
2-4 Battery charge
The battery charging starts automatically by connecting the UPS's "AC input" plug to the
power outlet (commercial power supply.) The charging will complete in 12 hours
maximum.
*The UPS will charge both ON and OFF states.
The UPS is shipped from the factory after fully charged; however, the backup time may
be shorter due to the natural discharge at the time of first use. We recommend you to
start using the UPS after fully charging it.
Follow the operation in "3Operation of the Uninterruptible Power Supply (UPS)” (P.25)
when not performing “2-5 Initial Value Measurement for Backup Time.”
2-5 Initial Value Measurement for Backup Time
Measure the initial value of the UPS’s backup time in your environment, so it can be a
standard when inspecting the battery or deciding the setting value of the automatic
shutdown software.
R
EFERENCE
"5.Measuring the backup time” -> (P. 33)
2-6 Battery recharge
The battery completely discharges after measuring the backup time. You need to
recharge before use.
*You can use the connected equipment while charging; however, the backup time will
shorten in a case of power failure occurs until the charging is completed.
In this case, the backup immediately starts the moment the power failure occurs just
after start charging.
R
EFERENCE
"2-4Charging the Battery” (P. 24)
All the preparation for starting the operation has been completed.