１２
7. Maintenance
7.1 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.
7.2 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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