i havent actually measured time on/battery % exactly yet, ive just been charging it bit by bit throughout the day.
the first day i had it i was checking out gmaps to see how much faster the processor was and was glad to see it worked a lot faster over wifi. later on though, my battery was tanking like crazy and i saw batt usage by maps was like 70% even tho i exited the app and even force stopped it. restarted it later that evening and it stopped that from happening.
now ive just been noticing that i have to charge it periodically more often than my OV but ill have to check tomorrow to see waht the uptime vs batt % is.
My OV was able to go about 3 days with minimal usage but with my OE it lasts only about 12 hours. i guess its still pretty long but i dont have wifi/bluetooth/gps/sync on and i just guess i thought it'd last longer.