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Help Froyo battery life issues

xgb788 said:
The same thing is happening to me, usage is probably less, phone gets hotter and battery dies a lot faster. Why is this?
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I don't think any of us really know the real culprit but I would do everything that EarlyMon, apocalypse_later, and Slick1020 recommend doing to alleviate the issue.

It all worked for me.

Hope that helps! I know that it was scary for me.
 
whoosh!!!!! :eek: Right over my head. But I do appreciate the time and effort this took to write up. It seems like a very complicated issue that hopefully by calling attention to it as you have maybe something could be done to streamline the technology? Maybe I'm just dreaming but hopeful!

EarlyMon said:
The issue with app certification comes from Google's approach to Java in the first place.

Sun had a vision of Java having _perfect_ platform independence and a _theory_ on the right way to do this on mobile devices.

Google had a different vision - and I'm not saying that they were wrong - but it did require Java programmers to re-think a little.

On top of that, the kernels vary by handset / maker - so you'll find that the ARM4/ARM7 processor models are alive and well in the Android Software Developers Kit, the truth is that there are some interesting processor differences in the real world - as well as how makers approach those differences.

And while the essence of the Android kernel is based on the Linux kernel, the Android kernel was a branch off the mainline that cause all sorts of infighting between the two communities - and has only _very recently_ started to be fully reconciled. (This seemed to center around - surprise! - power management.)

Here's a few interesting links, not really required and maybe revealing only in the sense that it might open a door to those interesting in reading / studying further. I've gone back in time because some people find how we got here to be helpful sometimes:

Android vs. iPhone: Why Openness May Not Be Best

Java Droid | Java.net

Initial Thoughts on Oracle vs Google Patent Lawsuit - Miguel de Icaza

How Much Linux Is in Android? - Linux Magazine Online

Google's Android code deleted from Linux kernel - The Register

Garrett's LinuxCon Talk Emphasizes Lessons Learned from Android/Kernel Saga | Linux.com

All of that adds up to great difficulty creating an app whitelist that we _all_ want.

If I can think of a way to solve this problem - I will.

Bottom line for me is that 4 or more stars are nice - _but_ I look first and foremost at EVO user comments and trust those over an aggregate comment score - and - practice your backup / restore processes, because even a good dev can introduce a boo boo that totally frags your phone.
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EarlyMon said:
So far as I know, the Android Market's only sensitivity is to what carrier you're with. (In fact, I'm rather certain of it.)

During my first appbrain use, I had all sorts of hell break loose that hasn't seemed to affect others - including downloading a completely different Bubble app (different dev) than the one I'd had.

Following that, all of my internal processes were scrambled like crazy - including turning wifi on/off faster than once per second and also a constant lookup for WiMAX services, then error-out, then look again - with 4G turned off.

Perhaps I was unfair blaming appbrain - but I went from a working phone to chaos on my first use, so I've avoided it since.
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That's so sad!!! I really do like how streamlined it is and easy it is to interface with it. I also like how it makes recommendations to me about what I would like. Just like Amazon which lets me know about at the cool things I never knew I needed that are essential to life, Bastards!

It is a great idea EarlyMon to check to see what Evo users are rating the apps. Thanks!
 
Wow, today was a bad day for battery for me. Been home all day. Evo awake time is only 3:12:51 atm. Right now its on its last 2 bars of battery (Yellow.) WTF?

8hrs 30 mins since unplugged

Cell standby: 25%
Phone idle: 24%
Android system: 21%
Wifi: 20%
Display: 6%
Dialer: 2%

Wonder why it drained so fast today...

I just loaded up system panel, and I scrolled down to the battery part, it says 18% Remaining (Discharging)

Umm is that normal? I don't remember seeing that before, the discharging part.
 
Alright I might have found the culprit for my Evo. In the wifi settings, I have it set to sleep after 15 minutes. But I jus loaded up the spare parts app now, and noticed under the Battery History, wifi has been on for (100.0%) of the time. Download the Spare Parts app and check to see if its the same with you. I don't think my wifi has been sleeping at all, which is causing the battery drain. I could be wrong though, but not by the looks of this app.
 
EarlyMon said:
Under Spare Parts Other Usage, I've nearly always had Wifi On and Wifi Running at 100%.
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So is WiFi actually sleeping or no? I did check later on under the second drop down list, and changed it to "Since last unplugged" or something similar, and it showed a far less percentage. So I assume it is shutting off after the timeout.
 
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