Maintenance And Inspection; Checking The Battery; Replacing The Battery - Omron POWLI BU50XS Instruction Manual

6. Maintenance and inspection

6-1 Checking the battery

The sealed lead-acid battery used in the UPS has its life. (The life varies depending on your storage/use
environment and backup frequency.) The nearer the end of the life is, the more rapidly deterioration proceeds.
Therefore, check the battery regularly by yourself.
1. Life of battery (estimated replacement timing)
Ambient temperature
20°C
30°C
2. Method to check the battery
Measure the backup time according to "5-1 Measuring method of the backup time" on page 28.
If the measured value is half of the "initial value of the backup time," battery replacement is necessary.
3. Guideline on the frequency of checking the battery (measuring the backup time)
Ambient temperature
20°C
30°C
* The battery deteriorates even if it is stored. The higher the temperature is, the
shorter the life becomes.

6-2 Replacing the battery

You can change the battery of this UPS by yourself.
You can replace the battery of this product even while it is in operation (power is
outputted). You can do it also while it is stopped (power output is stopped). You
can choose either of the methods for your convenience.
* If you replace the battery during operation and a failure occurs in the input power such as a power failure
when the battery is not connected, the product does not perform the Battery mode and stop.
* Do not replace the battery during the Battery mode.
The UPS stops.
An electric shock or short may occur.
● Do not put you hand into the opening for the battery when replacing the battery.
● Do not insert metal objects into the inside.
If liquid (dilute sulfuric acid) leaks from the battery, do not touch it.
● Doing so may cause burns and, if it is put into your eye, blindness. If it touches your eyes or
skin, wash it out with lots of clean water and consult your doctor.
Life of battery Replacement estimation
4 to 5 years 4 years after staring use
2 to 2.5 years 2 years after staring use
Check at intervals of 6 months
Until 3 years from purchase
Until 3 years from purchase
Warning
Check at intervals of 1 month
From after 3 years
From after 1.5 years
29
6. Maintenance and inspection