PERC Battery is bad, but shows as OK?!

Hi,

I have a PE R640.  Out LogicMonitor system shows an error for the iDrac on this device.  When I log into the iDrac, the Summary item has a red X but nothing else does.  If I click on Front Panel, it says the Live Front Panel Feed shows:

The PERC1 battery has failed.

However, when I go to Storage, Controllers and look at the Controller Battery, it says Battery on Integrated RAID Controller 1 is Ready and OK. 

I'm confused as to if this battery is really bad or is actually fine.

If I go under Maintenance, Event Log, I see a Perc1 Battery has Failed entry, but it's from October.  Would it be showing the battery as bad just because it flagged it from 3 months ago and never cleared it?