AccuLine CNQplus 1000RT, User Manual

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9. Maintenance
9.1 Operation
UPS Acculine CNQplus series contain no user-serviceable parts. If the battery
service life (3~5 years at 25°C ambient temperature) has been exceeded, the
batteries must be replaced. In this case please contact your dealer.
9.2 Storage
If the batteries are stored in temperate climatic zones, they should be charged
every three months for 1~2 hours. You should shorten the charging intervals
to two months at locations subject to high temperatures.
9.3 Battery Replacement
If the battery service life has been exceeded, the batteries must be replaced.
Battery replacement should be performed only by qualified personnel.
It is recommended to shut off the UPS completely before the replacement. If
there is a battery breaker then turn it off first. Disconnect the battery cable
carefully and make sure there are no exposed wires that can be touched.
Reconnect the new batteries to the UPS by following section 5.8. Then turn on
the battery breaker and start the UPS.