Does the EVO 3d battery fit in the EVO 4g?? Does it provide any better battery life?? If so ill get one on ebay. The quick 15-20% drain on my evo4g really grinds my gears...
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I have the exact same problem. My battery drains 10% an hour without any use. It happened immediately after the Oct update. I tried everything (even buying a new battery). I finally figured out that when I have Wifi on it sucks the life out of my battery. I have checked all my Wifi settings and they are the same as they were prior to the update. If I turn Wifi off and use just 3g my battery loss is about 2% an hour. I'm at a loss because I love to use my Wifi for speed but a cannot. If anyone has any ideas please let me know. Maybe I should just call sprint and see if they can "help"
by the way I did a factory reset and have turned off all syncing with the same results.
I'm going to say it, the battery usage in android screen is wrong, it lies. It likes to blames the screen, but it's wrong, it's really the GPS, and 3G & 4G radios. How do I know, I tested it.
First I surfed the internet - my battery drained quickly. Next test I downloaded a whole bunch on content and turned on airplane mode. Then I read the content in airplane mode - the battery barely drained at all.
I've ran versions of this test over and over. It's not the screen that's draining the battery, it's getting a bump rap.
The phone also really uses the battery when the 3G signal is weak, and it's switching back and forth between roaming and the weak 3G signal. Like I said, the radio is using the battery. But if you check About phone -> battery -> battery use you won't see that.
I'm give you this info because I'm trying to make my battery last a full day, and as long as we are all misdirected we'll never figure this out. In a few years the battery problem will be solved, but until then it sucks.
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