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9. Maintenance
9.1 Operation
The UPS system contains 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.
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