IBM 6000 VA LCD 4U, Руководство по установке и обслуживанию

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Battery charge does not display as 100%
When checking the load status of batteries in the UPS, you might notice that the
UPS shows the battery charge at 99%; however, the batteries are fully charged.
The battery charge remains at 99% even after you replace the batteries. The
charge value is displayed as 99% on the UPS LCD panel and the IBM UPS
Manager software. This does not indicate a hardware failure and the UPS is
working as designed.
For more information about the expected UPS battery charge voltage, see “Battery
charge values without loads” on page 44.
Chapter 5. Hardware maintenance information
45