Root Root + OverclockWidget = Insane Battery Life 40+ Hours

Tenny · Jun 10, 2010

J-Dub said:
I think some people are forgetting about the apps they may have that are draining the crap out of their batteries...remember to consider this in your equation. Because 10% loss in 30 minutes is crazy!

I've noticed the battery % to be amazingly inaccurate... As soon as I unplug it from the charger sometimes it's down 5%... then the first 15% can go within minutes... that's after resetting battery stats, etc.

Beejis · Jun 10, 2010

Tried it and it didn't work for me, in fact I think I get the opposite result (even worse battery drain) but that could be heavier usage, not exactly sure. Maybe it could have something to do with whether it is a custom or stock ROM. Or root/unroot system. I'm rooted with OMJ's custom ROM.

stroths · Jun 10, 2010

bobr0949 said:
You need to use adb.
connect usb cable
in adb
adb shell
cat /proc/cpuinfo

Tried this on mine and here are my results:

Sleep State

OverClock CPU Gadget - BogoMIPS : 162.54

Stock - Overclocker uninstalled and phone rebooted - BogoMIPS: 162.54

SetCPU - BogoMIPS: 162.54

Awake
OverClock CPU Gadget - BogoMIPS ranged from 162.54 to 662.40

Stock - Overclocker uninstalled and phone rebooted - BogoMIPS ranged from 162.54 to 662.40

SetCPU - BogoMIPS ranged from 162.54 to 662.40

It doesn't appear that either app does anything on our phones at the moment based on this. It may be that our kernels need to be modified to support manual CPU clock control.

TexRanger · Jun 10, 2010

I'm new to Android and picked up my Evo last Friday. My battery has been OK with moderate/average use throughout the day. I plug-in if streaming audio at work, though.

I just tried the unrevoked root and it seemed to "take" for lack of a better term. I installed the Overclock widget and matched the settings reported here, and saved them. When I wake up the phone, I get this message:

Operation failure, please check the su command!

at the bottom of the screen where I added the widget. It fades away quickly without an acknowledgment, so I don't know if this is a problem or if I should do something else.

Thanks to all (especially the original poster!) for the great info here!

mrk · Jun 10, 2010

EDIT: Also, I think the charts people are showing are people that barely use their phone. I send/receive a text about every 10 minutes, and mine dies quick as hell.

It's nice that you think that, but you can see in the graphs themselves that, at least with me, you're completely wrong.

Tenny · Jun 10, 2010

stroths said:
It doesn't appear that either app does anything on our phones at the moment based on this. It may be that our kernels need to be modified to support manual CPU clock control.

I always thought it needed to be. With the Hero, we couldn't O/C with the regular 2.1 leaks... until Toast came out with his O/C Kernel...

TexRanger · Jun 10, 2010

Cancel my request for assistance! I'm a noob struggling through but I think I've got it working now.

Jonhern · Jun 10, 2010

This is great, rooted phone just so i could install this, seeing the cpu speed is cool as well, set it to 5 sec update. Will this setting eat up a lot of battery? Did notice it was running full speed while on home screen, took off live wall paper and it went down all the way from a changing range of 600-998 to a pretty steady 245 while just on home screen.

Jonhern · Jun 10, 2010

mrk said:
I too can confirm that this works. I usually have about 30% remaining when I get home from class, and today I had 55% remaining.

What app are you guys using to get those graphs?

J-Dub · Jun 10, 2010

See page 4 of this thread, posts 191 and 192.

herzzreh · Jun 10, 2010

If I use unrevoked, do I have to set everything up after each reboot?

teddykgb · Jun 10, 2010

herzzreh said:
If I use unrevoked, do I have to set everything up after each reboot?

No, it's sticky, as the very first post says in the thread.

sweeptheleg · Jun 10, 2010

Whats with the people saying its not working because another app says the CPU isnt changing?

Clearly it is doing something to improve battery life, is it not possible the CPU measuring apps are the ones not working...The battery life doubling is sort of hard proof it works right??

stroths · Jun 10, 2010

sweeptheleg said:
Whats with the people saying its not working because another app says the CPU isnt changing?

Clearly it is doing something to improve battery life, is it not possible the CPU measuring apps are the ones not working...The battery life doubling is sort of hard proof it works right??

What I used to measure was not an app. It was the direct info from the Android OS.

robotphood · Jun 11, 2010

sweeptheleg said:
Whats with the people saying its not working because another app says the CPU isnt changing?

Clearly it is doing something to improve battery life, is it not possible the CPU measuring apps are the ones not working...The battery life doubling is sort of hard proof it works right??

That's what I'm thinking. Get my EVO tomorrow so I'll definitely check this out eventually.

Also wouldn't a better test for this to idle the phone as long as possible in the same place compared over a couple of days? Seems like if you're testing during the day when you're actively using the phone (which shouldn't be affected by this widget) then there are too many variables that may have changed from day to day. I know it's hard to not use your phone but everything has to be the same to get accurate results (as possible).

thegame3202 · Jun 11, 2010

Got it working. Took some digging but the new rom seems to have helped. Apparently the facebook app was set to sync contacts every hour, as was gmail. I'm getting pretty good life now.first charge and I'm at 55% after 7 hours. THANKS!

MyFishWagon · Jun 11, 2010

nick325i said:
I have root and Overclock Widget. I have the CPU scale down to the 200 mhz range when screen off and 998 when screen on. Below is a screen shot after 21 hours off the charger at %49. This puts the phone at almost 2 days before a charge is needed.

This is not a root thread. Please do not ask for help rooting and lets keep it on topic!

Can you tell me what settings you have yours on ?

I click on the widget, then, what should MIN be on ? What should MAX be on ?

Also, What settings for "Screen on Freq Setting"...

thanks !

neodorian · Jun 11, 2010

Watching my CPU live in that System app, I see it not respecting the min CPU set in the OC widget. This leads me to wonder whether it is doing anything at all.

Jonhern · Jun 11, 2010

J-Dub said:
See page 4 of this thread, posts 191 and 192.

Thanks, didn't see that. SystemPanel is pretty great, will be testing this out today, i have a charger in my car which i use through out the day since i work on the road right now, will see how long it lasts without doing that today, starting with it fully charged in the morning.

TheBiles · Jun 11, 2010

Why is this topic stickied? The EVO automatically downclocks when in standby mode. I actually get WORSE battery life with OC Widget. The secret to good battery life is finding out what the **** keeps your phone awake when it should be asleep. That's the difference between 40 hours of battery and 15.

teddykgb · Jun 11, 2010

TheBiles said:
Why is this topic stickied? The EVO automatically downclocks when in standby mode. I actually get WORSE battery life with OC Widget. The secret to good battery life is finding out what the **** keeps your phone awake when it should be asleep. That's the difference between 40 hours of battery and 15.

I've seen people argue that it does and it doesn't in the thread. Which one is it? Can anyone prove it? That's WAY beyond my skill level. I'm still a noob.

zaltol · Jun 11, 2010

nick325i said:
There must be a threshold from where it switches to saying unplugged for x hours. I don't know what amount of time creates that threshold.

FYI, second day and it still says unplugged since vs. unplugged for. Not sure whats up....

igot5onitt · Jun 11, 2010

to all - the only way to know if it works for you is to test it.

everyone uses the phone differently. i use it heavily for about an hour or 2 a day depending on traffic. besides that - the screen is off and idle at my desk.

however - if u use the phone all the time.. your never giving this widget the opportunity to save your battery. THIS WIDGET ONLY HELPS BATTERY LIFE WHEN YOUR SCREEN IS TURNED OFF (inactive). If you use the phone all the time.. no shit your battery is going to drain.

this method DOES WORK. i've noticed a big difference. thx for this thread.

nick325i · Jun 11, 2010

TheBiles said:
Why is this topic stickied? The EVO automatically downclocks when in standby mode. I actually get WORSE battery life with OC Widget. The secret to good battery life is finding out what the **** keeps your phone awake when it should be asleep. That's the difference between 40 hours of battery and 15.

Thanks for your positive input.

If what you say is true, i'm happy that probably hundreds of people between here and XDA are reporting 20+ hours of battery with a placebo, where they got 10 previously.

twospirits · Jun 11, 2010

last nights results are as follows...

Fully charged at 12:00AM, took off the charger
Checked few email, tweets, and it dropped from 100% to 97%
Turned off display went to sleep.
Got up at 6AM, display shows 87%.
(Although I should be concerned as to why it dropped from 97% to 87% when the phone was not being used, I am happy, because without the OCW, it would have been dead by morning.)
Went into work, at 8:30-9AM I check my emails, tweets, see a few webpages
checked out ESPN Mobile for World Cup coverage and the by 9AM, it went down to 71%.

At work, I decided to plug it in. (Only because I plan on seeing the World Cup and did not want it draining the battery).

So yeah, to me it seems to work, not as much as I want, but none the less, it works and gives me more battery life than before.

I just need to figure out what apps are actually draining my battery and hopefully get them taken out.

TS out

Root Root + OverclockWidget = Insane Battery Life 40+ Hours

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