RoboMonkey
Android Expert
8h 55m 56s since unplugged and is at 54%.
I wish I could take a photo and upload it.
I wish I could take a photo and upload it.
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means nothing if you don't list what you did with the phone during that time.

Hmmm I did the same thing this idiot did and mine didn't poop out.
" Vraig noted that the main thing to worry about is the battery life as it pooped out after only a few hours of general use.
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TECHNOLOGY - Sprint HTC Evo 4G Update: Battery Life Is An Issue Even Though Evo Is Fast

Yeah! Glad I'm not the only one who thinks so! Played around with the phone all evening last night after it charged once. figured i'd disharge it fully overnight by constantly playing pandora (after a night of heavily toying with my new geek toy, including HDMI out and some 4g speed tests). Imagine my surprise when Pandora was STILL playing when I woke up!
Granted, it was over WiFi, but the battery seems pretty adequate so far!
I took the phone home, drain the battery and fully charged it (about 3 hours until green light is solid). With no additional apps, with no 4G available (I am about 10 miles south of the 4G tower in Houston!), I tested the sprint Nav. The battery lasted about 3 hours. I fully charged again and did the same thing. Battery again lasted about the same amount of time. With Li, I always drained at least 2 times before start using the phone.
Just turn off Background data and you'll never have an issue with the battery. I'm not a Facebook junkie so I don't care about constantly being kept up to date with what every one is up to.