HTC EVO 4G :: Do All Kernels Kill Battery Life?
Sep 13, 2010
So I am on my 2nd kernel now other than stock. I tried netarchy .18 and currently using kings 9 bfs. I am running stock rooted froyo. The stock kernel gave me the best battery,both netarchy and kings kernels have given better performance. Is there a best of both worlds, i.e. a kernel that gives better performance over stock AND better battery life? With the netarchy kernel I used 25 percent of my battery in 2 hours from a full charge. So far with kings I have used 10 percent in 30 minutes from full charge! This compared to stock which was 90 percent over 20 hours. Any ideas or suggestions?
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Oct 9, 2010
I wanna know your battery life along with your Rom and Kernel. I want a Sense Rom with great battery life. But everyones saying the MIUI has some good battery life. Right now I have Uncommon Sense v1.1 with King #5 Kernel. Not bad battery life, but not good neither. Also, can you post how much you use your phone?
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Oct 18, 2010
Alright this thread is to talk about what kind of battery your getting with what kind of ROMS and KERNELS.
This shot is from Baked Snack 1.8 Kernel#6 with Low Rider theme with pretty little to medium use
Reason for this thread is to share what ROMS you've gotten best battery life from, cuz I'm trying to venture out and try some different ones with the best life.
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Jul 27, 2010
So I got the ADW.Launcher and I'm finding it to be FANTASTIC, much better than Sense and Launcher Pro IMO. I FINALLY got skype and it's amazing too. The big thing those it that I finally threw some widgets onto my desktop - namely You Tube, Google Search, and the Power Control thing. The power control is really nifty and makes it so easy to control blue tooth, wifi, gps. Are these going to kill my battery life? I don't' use live wallpapers and I make sure I don't have a ton of apps running in the background.
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Aug 6, 2010
So what are tge top killers of the battery? I know the obvious one is the screen. What else drains a huge amount of energy? Do things like multiple news feed widgets drain a lot of energy? I heard leaving GPS on absolutely wrecks your battery life as well.
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Nov 8, 2009
Will it kill my battery life?
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Sep 18, 2010
So I have been playing around with different kernels and settings and logging them in System Panel. I will explain details below each pic. Usage was the similar each day with a little bit of tethering, alot of web surfing, imobsters texting and email with kids playing some games here and there as well. Running Fresh 3.2 with different kernels on different days. Monday night I installed Fresh 3.2 and ran the Fresh kernel with SetCPU ondemand and screen off profile and ran it the same way through Thursday. Late Thursday evening I installed Kings #9 bfs kernel and uninstalled SetCPU and ran it all day Friday Late Friday I reinstalled SetCPU and set it to conservative and ran it that way all day Saturday. As you can see, Tues, Wed, and Thurs were all very consistent. Tues I got appx 15-16 hours, Wed I got 14-15 hours and Thurs appx 12-13 hours. Friday was by far the best just letting the kernel do its thing with no SetCPU. Saturday sucked! Battery was dead by 6 pm with appx 9 hours use. I just flashed the Fresh stock kernel back on and uninstalled SetCPU and will see how that compares tomorrow. Sure would like to see the 1.5 days flipz is getting! I have read several places now that SetCPU may be counter productive since the newer kernels are managing things better lately. Does anybody know if the Fresh 3.2 stock kernel is using HAVS?
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Nov 19, 2010
I want a kernel that gives me longer battery for my UD 2.0.0 ROM, and hits 800-1000MHz. Anyone got any good suggestions? slayher kernels are great with LFY, but not with UD
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Nov 19, 2010
Some weird things are going on with my battery. I was running Liquid Froyo 1.9 and even 1.95 using slayher kernel and i even tried the p3droid kernel and when i reached about 40% battery, my battery would just jump to 20% and after that pretty quickly to about 5% and then its dead. I recently installed ultimate droid 2.0.0 also using slayher and even then it still did it. I don't understand why this is happening, i havn't even used my phone that much for it to reach 5% so fast, especially jump from 40 or 50% down to 20% in an instant.
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Apr 27, 2010
If you leave GPS switched on, and don't use any GPS apps, would it consume the same battery as with it off. Becasue it only activates itself when a GPS using program is on which means it wouldn't kill the battery?
Anyone tested this out?
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Aug 7, 2010
Trying to cycle this new battery so i can try something
navigation is on, bluetooth on but no device to pair with, wifi on but no spot to sync with, 3g on but in a bad area, music player on, newsrob on 30min syncs, and screen on max..
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Oct 22, 2009
I cannot leave it running in the background as it kills my battery. is there another app that is a good IM program that is more gentle on the battery and allows the phone to sleep? I cannot understand why developers don't allow the phone to go into a sleep state, using IM to wake it up and reactivate the IM application, much like PDAApps Verichat used to do.
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May 29, 2010
I always see people on this forum talking about having their phones rooted with the processor overclocked to 1+ ghz. The droid battery already has trouble lasting a day, how does overclocking not kill the battery extremely quickly?
Or does it and people decide it's worth it?
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Oct 25, 2010
I feel like it only initializes when Maps or Foursquare opens. Otherwise, does it matter? Triangulation isn't always the nicest
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Jul 29, 2010
Was doing fine until rain was coming, then battery dropped big time. Charged last night before bedtime, didn't use my phone all day and checked a little bit ago and was down to 50%. Normally I'd be at 80-90% under similar circumstances.
Here's the confusing part (Battery use):
42m 36s since unplugged.
Display: 67%
Cell standby: 26%
Phone idle: 8%
EDIT: BTW, this is LIVE weather.
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Aug 22, 2010
So Im using Chevy's SS 4.7 with his .8 ULV kernel and im getting like 5 hour battery life... I checked Usage and number one is Drroid OS with like 28% and then display with 18%. Can the kernel kill battery that much or should i just do a wipe and start all over?
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Apr 28, 2010
I need some tips on how to kill the battery so I can cycle it to optimal usage. Thanks. I have the display on 30 minutes (max) and Pandora streaming music. I have gps, wifi, bluetooth, and google sync on as well.
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Apr 12, 2010
The internal meter says it is due for charge long before its out of juice. Battery Left widget will give accurate voltage levels, but it too is fooled, even after proper calibration.
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Aug 12, 2010
does battery status pro drain your battery life?
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Jul 7, 2010
Having music junk on the phone does it kill the battery faster? and does it slow down the phone?
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May 27, 2010
Do live wallpapers really KILL the battery on the M900? I mean its the first day I have used them so I don't really know
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Nov 2, 2010
Just discovered the joys of angry birds from the marketplace, that gonna kill my battery dead
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Nov 18, 2009
Does anyone else find that their battery does best at like 60%-70% charged and when it gets below 40 it moves a lot quicker? Also I've done 3 full drain and full recharges so far and my battery has improved sloightly each time, do you reccomend I do it again or is that just bad for the battery?
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Mar 16, 2010
Background info:
- I'm running the "Battery Left" widget and I have it displaying "estimated percentage left", "system percentage", and "estimated time left until dead".
- I listen to A LOT of Slacker Radio.
My issues:
- I was previously getting about 19+ hours out of a fully charged battery. 2-3 days ago I started having issues with the widget (I think it may have started when I installed an update to the widget) so I recalibrated it to no avail. Then I uninstalled it and reinstalled it. Within a few hours it claimed that it was getting accurate readings (when I first installed the widget weeks ago, it took days to get accurate) and now says that I should be getting 9 hours out of a fully charged battery. I know that can't be right so I'll see how the widget adjusts itself over the next few days, but, any thoughts? (I know a lot of you guys use the same widget and know how it works...)
- Also, In the first two hours of my phone being unplugged this morning, it went from 100% to 70%. I did run Slacker for about an hour and a half of that time, but could it really drain the battery that much that quickly? And I noticed that when I close Slacker, if I go into phone settings, applications, running services - there's still a Slacker update thing running in there. Could that be draining the battery too, even if it's only checking for updates?
- I really don't run a lot of stuff on this phone. I keep wifi and gps turned off. I use bluetooth only a few hours each night. Minimal web browsing. Although, my POP email gets checked every 5 mins (but I just changed it to every 10) and I do use gchat and text a decent amount, but I'd say overall, it's "light" use (except for Slacker which could be a huge drain, right?)
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Jun 23, 2010
My battery life was bad, but it was OK, but in the past few days my battery life is 10% per 30minutes(Just over 5 hours on a charge).I used to get 8-10 hours on a charge.I noticed last week that while it was charging the status of the battery was "Overheat".I think I somehow cooked the battery?I use TaskKiller and kill 95% of apps automatically, I have bluetooth,wireless,GPS disabled and the screen dimmed.I have not changed or installed any new apps.I have not changed the way I use the phone at all.My battery was dead, 0%, and it charged to 95% in about 45 minutes.Is this even possible?In fact in the past two days I have not gotten the charge above 95% at all.
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Jul 20, 2010
Thinking about getting the extended battery for my new htc incredible. Just wondering how long the battery lasts when you use the phone. Not just standby?
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Dec 17, 2009
I have the startup auditor and Task Panel apps. I want to try and setup the phone to always have as much memory available as possible. Most of them are pretty obvious but there are a few I'm not sure of. Does anyone have a comprehensive list of services/processes/etc. that we can safely kill off and/or set for auto-kill/disable at startup? Edit: One I was curious about is Google Partner Setup. I have killed it off without any issues through Task Panel. But would having it on the auto-kill list be OK?
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Sep 24, 2010
Does anyone know which Sense ROM out there to use that has the best battery life? Or is there a Kernel? I currently am rooted with stock. I only rooted for wireless tethering and now I just want a ROM to have great battery life. Managing this battery has just become tiresome even with all the chargers I have. Not looking for tweaks and settings changes, just need a good ROM.
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Nov 5, 2010
so iv been using kik on my evo recently.i noticed it KILLS my battery BIG TIME. the mobile network has to be on to use kik and it just drians my battery like no tomorrow.
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Jul 25, 2010
I rooted and put "Official Froyo HTC Sense ROM". Seems to work fine, however, I have a feeling that battery life is worse, especially when using the net. However, maybe it's just in my head. What are your experiences with battery life after upgrading to 2.2? And please, don't make silly "I surfed the web for 12 hours and still have 25% left" claims Also, I'm not interested in other ROMs, as I want a clean sense experience with no modifications (as close as possible to the way HTC made it)So - 2.2 and battery life: same, worse or better than on 2.1 that came with your Desire?
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