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Chapter 7
7.4 Consumables
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Battery
• The battery, if used continuously, will deteriorate or wear out, possibly aecting the performance of the system. To
safely use the system for a long term, the battery needs replacing if it is found deteriorated or worn out. The bat-
tery has a limited lifetime. If the operating time is shorter even when the battery has been fully charged under the
specied conditions, replace the battery with a new one.
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Fan
• Periodic replacement is required every 40,000 hours of operation.
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