- 28 -
5.4 Replacing the Battery
Timing of battery replacement
CAUTION
Damage
Batteries should be replaced periodically.
Use of the product with a depleted battery may cause
leakage, smoking, or ignition.
The battery has reached the end of its useful life in the following cases. The
"BATTERY ALARM" LED (orange) on the front of the UPS lights up and a
warning sounds.
When the backup time of the battery has been lowered to 3 minutes or
less (at the rated load)
Battery life is greatly affected by ambient temperature and connected
device conditions; if the UPS is used under standard environmental
conditions (ambient temperature 25°C, rated load), the battery should be
replaced after approximately three years.
Relation between ambient temperature and time of battery replacement
- Warning -
Battery Life
[BATTERY ALARM] LED (orange) lit
Ba
tte
ry
re
pl
ac
em
en
t
(y
ea
rs
)
Product ambient temperature ( C).
