My desktop is on (and online) 24/7 while my wife goes online with her laptop several times a day. The MiFi is tethered to my computer so my wife has to unplug it to get the WiFi, then re-tether it when she is finished (so it doesn't get forgotten and run the battery all the way down).
My preference would be to leave the MiFi plugged in to the wall charger 24/7 so that she could go online at any time without the un-tether/tether bit. Also, when on the wall charger the MiFi is plugged in on a high shelf above a window and gets a near full signal.
The problem is that when left on the wall charger it also gets hot. Is this a problem? Should it not get hot?
Thanks for whatever info you can give me.