Since you had to change the driver, I'd go to the device detail page for each and run a Configure command (button in the commands towards the top of the page) to see if that helps. If not, you can also try a Refresh (If there is one for these devices) or try something like running a test on the detector itself to force it to send something to the hub and update the "Current States" you'll also see on this page. The problem is likely that nothing is there, or at least nothing Dashboard is looking for (the "smoke" attribute; it appears you have "battery").
Also, don't be surprised if battery reporting is notoriously unreliable on these--while less so for those with alkaline batteries, it's an incredibly common grievance with most devices. I gave up battery monitoring on most of my devices long ago and wrote Device Activity Check to help with what people are normally really looking for when they're looking at this kind of thing, plus the smoke detector itself normally starts chirping before I ever notice anything on the hub side...in the event I forget to change the batteries on schedule like I'm supposed to. 
