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11.4 Battery Maintenance
CAUTION
！
・
Internal maintenance and inspection should be performed only by technically
qualified personnel. Electric shock, injury, burning, smoke or file could
otherwise result.
・
Batteries should be replaced periodically. Batteries used after their service life
has passed may cause a fire.
・
Never use organic chemicals such as gasoline, thinner, benzene or detergent to
clean batteries. These can cause the casing to crack and leak, resulting in fire
or current leakage.
(1) Battery backup time confirmation
Refer to §11.5 “Battery Test”, and periodically perform a battery backup time test.
Depending on the results of the test, exchange the battery.
The default Setup menu setting is to perform an automatic battery test once every 6
months.
(2) Estimated battery replacement interval
Battery service life is affected by operating conditions such as ambient temperature
and the number of discharge cycles. Ambient temperature has a particularly strong
influence as indicated in the following table (refer to the table to predict when
batteries will need to be replaced according to average ambient temperature). Using
batteries after their service life has expired can cause leakage, and in the worst case
damage may result, so we recommend exchanging batteries early as a preventative
and protective step.
Average Ambient
Operating Temperature
Projected Service
Life
Battery Replacement
Interval
25°C (77°F) 5 years 4.5 years
30°C (86°F) 3.5 years 3 years
35°C (95°F) 2.5 years 2 years
40°C (104°F) 1.7 years 1.5 years
(3) Battery specifications
The batteries in the UPS are specially designed for this application. Do not substitute
with any other type, and do not mix new and old batteries, as shortened battery life,
leakage, and heat could result.
(4) Battery disposal
Batteries are industrial waste containing lead, a toxic material and reusable resource.
Please cooperate by recycling when replacing or disposing of used batteries. To
dispose of used batteries, contact an authorized industrial waste handling company,
or repack them in their original cartons and send them to your supplier.