Sorry, I meant to add this too. In the Karaf console, type bundle:list|grep -i zwave.
Yes, yes (correction… you will probably need to upgrade to at least 2.2 release), and not unless you’re using the dev binding or use another software, like Zensys Tools or openZwave (included in Domoticz). There’s a jar to download in the first post. But there is a lot of good info in there, so read through it a bit. Reportedly, it will be merged soon.
With so few devices, you may want to consider just excluding/reincluding them. But do it through OH and when the mains powered devices are in their final locations.
You are very welcome!