I use mine for days without wifi. Does the WiFi icon (((i))) show up at the top of your screnn? If so, you are using WiFi, you just aren't utilizing WiFi. Turn it off in the tools menu (i think) inside Nevo studio then sync it and charge it up. It'll go for a while.

If you turn off WiFi completely, you'll get no "(((i)))" icon at the top of your remote's screen.