Omron BN50T User Manual

10 References
10-3 Battery life
BN50T/BN75T/BN100T/BN150T/BN220T/BN300T
10-4
10-3 Battery life
 Battery has a limited life span.
Periodic checks of the lead battery used in the battery unit are required due to the battery
limited lifespan. For the battery checking method, refer to "4-1 Checking the battery".
Battery replacement is recommended before the battery is expired.
Battery life
(The following is expressed based on the battery's trickle life, the service life of
a battery under the condition where low-frequent (once or twice a month) re-
chargings and dischargings are performed.)
Battery type Expected battery life
(Ambient
temperature 40°C)
Expected battery life
(Ambient
temperature 30°C)
Expected battery life
(Ambient
temperature 25°C)
UPS Series
Long-life
battery
2 years 4 years 5 years BN-T
Basically, the ambient temperature have a high influence on the battery life.
 The periodic recharges are required even if the battery is stored.
The battery self-discharges even if the UPS is not used (i.e., leaving the battery not
charged), and it deteriorates the battery. In the worst case, the battery may become un-
usable.
• Example of the storing condition and recharging frequencies
Recharge line
Storage period (Month)
Remaining
capacity (%)
<Description>
When the battery is stored at the storage temperature of 25°C, the battery self-discharges
(and the battery level lowers) to approximately 80% over half a year, and to approximately
50% over a year.
Higher the storage temperature is, faster the battery will self-discharge.
Storage temperature Auxiliary charging interval
40°C or less 2 months
30°C or less 4 months
25°C or less 6 months
10 References
10-4 Input voltage sensitivity settings
BN50T/BN75T/BN100T/BN150T/BN220T/BN300T
10-5
10
10-4 Input voltage sensitivity settings
The input voltage sensitivity settings and input/output voltages of the Uninterruptible Power
Supply (UPS) are related as shown in the table below.
Select an input voltage sensitivity setting that matches the specified input voltage range of
the connected device.
Input voltage sensitivity UPS input voltage range UPS output voltage range Input voltage sensitivity selection method
High 89 to 113 VAC 90 to 110 VAC When you want to narrow the output
voltage range
Standard 89 to 118 VAC 90 to 114 VAC When using in a regular environment
Low 84 to 118 VAC 84 to 114 VAC When you want to reduce the frequency
of operation in Battery Mode.

Omron BN50T Specifications

General

Brand	Omron
Model	BN50T
Category	UPS
Language	English