ROM and battery life question - Epic 4G General

Hi, I have a family member with a epic 4g, and they've complained about battery life quite a bit today. I checked the battery stats and noticed it was quite poor, especially when screen off. So I was wondering if anyone has any suggestions, he has the 2.3 update, and said it made the situation worse.
Are there roms/kernels that improve battery life enough to make rooting/flashing worthwhile.
Thanks for any help.
Sorry If I sound like an idiot, I'm only familiar with things on the Hero, and Evo3D side of XDA.

I have been running the ERA Legendary rom and have been getting a full day with up to 4 hours of display time which for me is better than it was on Froyo

The epic touch battery (1800mah) fits the original epic (1500mah), and there is also a 1950mah slim battery out now, made by mugen for around 40$ that will also fit the original epic.
Sent from my SPH-D710 using xda premium

Most of the custom GB ROMs should improve battery life, cause they have tweaks to remove battery-wasting bloatware.
I'm running ACS ICS v5.1 and I get a full day out of it with moderate use which is way better than I ever did on Froyo.

Set all their syncs to manual, never or an hour.
Sent from my SPH-D700 using XDA App

I am syncing multiple email accounts on Legendary. Nothing special. This morning when I pulled my 1500Mah battery I was at 1d 14h total on time, display was at 2h 24m. I streamed lots of music and surffed, other then that not much, but way better then I used to get.
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Related

Battery life stinks...

Hey guys what is up. I'm just wandering.. my Droid is brand new. Got it 2 days ago. Today I had to recharge my battery twice. I did use it a lot... so that may be it.. and when I didn't use it the battery life stayed the same for as long as I didn't touch the phone. Is my battery good? I got the app that tells me the temperature and everything. The hottest was 112F. It says my battery health is "good health". Will my phone hold a charge for a longer period of time after it has been charged then drained... and repeated. Does it just need to be broken in? Thanks for reading this whole essay I wrote you guys.. Haha. Well thank you so much again... and if you can please get back to me as soon as possible that would be great!
- Steven
Sent from my ADR6300 using XDA App
You should really search a little bit before you post. There are COUNTLESS threads on battery life.
Your best bet, until HTC fixes it, is to charge until the phone says you're at 100%, then turn it off and charge until the LED turns green. Charging and discharging really won't affect anything - their is no "memory" with their batteries.
Okay, thanks for the quick response. I appreciate it. Sorry. I should've read.. I was just a bit anxious. My apologies.
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You could always trying running one of Hydra's Kernels as well. I don't know if anyone has gained better battery life because of doing so... I use his kernels for the features.
DeeBG said:
You could always trying running one of Hydra's Kernels as well. I don't know if anyone has gained better battery life because of doing so... I use his kernels for the features.
Click to expand...
Click to collapse
stock speed undervolt is the way to go. I found battery improvement. Hydra Kernels are the way to go.
Hydra Stock Speed Undervolt Kernel
What is that? Do I get it in the app store? My battery is getting pretty warm now.. even when I touch my screen I feel it.
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When I click The link on my incredible it gives me an error when I download it. How do I run it and or make it work?
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steveng93 said:
When I click The link on my incredible it gives me an error when I download it. How do I run it and or make it work?
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Click to expand...
Click to collapse
What's the error?
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tcberg2010 said:
What's the error?
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Click to expand...
Click to collapse
It's a a force close with some other words I forgot.
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It says that its just an updater.
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Check Settings > About phone > Battery and make sure up time and awake time aren't the same.
If they are the same, it means something is keeping your phone awake when the screen goes off, which drains battery.
I just got my Droid Incredible a few days ago too, and I knew coming into it that the battery life has issues from a lot of users, but man, it really sucks!
I have it fully charged at 8am, and by 3:30 (with very moderate use), it's already at 20%. I've disabled everything I can (WiFi, Bluetooth, GPS, live wallpaper, installed ATK and keep my tasks at none, etc), and still the same.
I really love the phone (it's amazing other than battery), but the battery life is such a big deal for me that I am really thinking about returning it and waiting for the Samsung Fascinate to come (hopefully sooner than later). Thankfully I have until Aug 30 to call Verizon and return the phone... i sure hope the Fascinate gets a definite release date by then.
I'm going to try the full charge + phone off + charge again to see if that improves things, but other than that, does anyone recommend the Seidio 1750mAh battery or the HTC Touch Pro2 OEM (1500 mAh) battery? Does it make that much of a difference?
I read the findings on batteryboss.org, and it appears that the TP2 battery was better but the Seidio battery they tested was a used one, so it wasn't a fair comparison.
Any thoughts/help would be greatly appreciated. Thanks.
Loose atk....and read. I get a full 18 plus hours and I don't bump charge. Lots of info out there
Sent from my ADR6300 using Tapatalk
I purchased a 2150 mah battery from verizon and i can say I wont be having battery issues.. that is one option, but you wont find a case that fits your phone, that is the only downfall
I was just reading reports about the new Facebook app...looks like they are working on that fix if you use that and it is causing a battery drain
http://www.androidcentral.com/facebook-confirms-battery-drain-latest-android-update
Uninstall the 1.3.0 facebook app RIGHT AWAY if you downloaded it. That destroyed my battery life yesterday and I have never had battery problems with my DInc.
You can just use the regular HTC Facebook app until an update is released for the facebook for android.
Try it without the new facebook for a day and see if it changes.
If you don't have the facebook app then just make sure bluetooth, gps, wifi are off when you aren't using them. I recommend trying bump charging but I've never personally and my phone lasts about 26-28 hours+ with mild to heavy usage depending on the day.
-Flawless
Thanks for the replies..I don't use Facebook so that wouldn't be my problem.
I think ATK is good.. I mean I don't have it on auto so I sometimes just kill all tasks and I have noticed any decrease from the already poor battery performance.
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Ionno what it is but I'm running froyo 2.2 n I Thot this issue would be addressed but still nothing.. I'm hoping the VZW push will address it... I get decent battery life when I charge fully then turn off then plug back in til light turns green but its a pain in the ass to do dat.. I believe my awake time is like 3-4 hrs with an uptime of like 18-19 hrs
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I have a Sedio 1750, which I bump charge every morning, and UltimateJuice set to turn on APN every 5 min for 30 sec or until data transfer is done. WiFi is used whenever possible and otherwise turned off.
I easily make it through the day and have battery to spare with moderate to heavy use.
All the battery life horror stories make me wonder what everyone is doing differently. Haha
Lots of OJ Simpsons in this thread...
Sent from my Incredible using XDA App

foyo? or stay on 2.1? is it worth it?

I have been dabating wether or not to flash a froyo rom and modem. I am currently using ee with phoenix kernel and loving the battery life i get out of it. I have searched the threads but not to much pertaining the the battery life of froyo as there is no kernels yet, most replies to battery life on froyo are a simple its good or i get good battery life. I Wa wondering what kind of battery life people are getting with froyo roms. battery life is the 1st on my list of importance so some with respectable performance would be nice to know so i could make my first froyo jump. Thanks in advance.
I've been on it for a few days now (DK17). I don't use any task manager, or juice defender or anything like that. I have a start-up manager (autoruns) and thats it. I unplugged my phone yesterday at 10:30am and 12 hours later I still had 40-45% remaining after some moderate use... angry birds, asphalt and web browsing mainly.
Hope that helps!
I just flashed 2.2 and used it all day at work for texting, calling, facebook and web browsing and after 9 hours at work i had just under 80% battery life left.
If you are after battery life, then stay on 2.1. I have 4 backup batteries and didn't mind going to 2.2, but I did have a considerable battery life decrease. I find myself changing batteries atleast once a day with these beta 2.2 releases. Recently I haven't noticed it as much, but I think that is due to my getting used to the routine of changing batts every 6-8 hours depending on use.
I really do enjoy the perks of 2.2 though. Flash player with Hulu is awesome, faster phone than 2.1, and the developers are doing a great job of getting some custom themes integrated right now, which makes it not only run great, but look awesome.
Spectral8x said:
I just flashed 2.2 and used it all day at work for texting, calling, facebook and web browsing and after 9 hours at work i had just under 80% battery life left.
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Click to collapse
How many hours would you say you where using it, while at work?
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I've used it the second it came out, some noticeable snags you'll work around just fine. I've had it for atleast 3ish weeks no major setbacks I guess. Just used clock and flashed it. Happy with over all with flash and other new twists....phone can be hairy at times, but I've foun several androids do on 2.2. Speaker everytme you pick up a call with he feature "off". I have had the epic on the first day at day break.....
Just my $.13
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What roms are being used for the better battery life? And how much faster then 2.1 over clocked to 1.2ghz is it if any?
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I'd stay with 2.1 for now. My phone took a serious performance hit going to 2.2... something is wrong with that kernel. Not optimized yet maybe?
Sent from my PC36100 using XDA App
I don't know about you guys, but I am using ACS's Froyo build and my Epic has never had better battery life. By a large margin.
It seems the latest froyo release has been outstanding in terms of battery life. If you're looking for battery efficiency, definitely go with a froyo rom. If you're looking for performance, go with eclair. All in all however, froyo roms are fairly snappy especially considering they are at stock speeds. Can't wait for battery life increases once froyo roms get UV'd.
EDIT: on second thought, I'd have to recommend froyo either way. The improved web browser performance + flash as well as froyo gapps alone make the jump worth it. There's really no 'lag' to speak of on froyo roms... merely, the phone just seems faster on eclair switching between apps and loading/closing them.
I'm using epic experience 2.0(froyo) and my epic has never performed better. Especially gps locks in like 2-3 seconds even without wireless location check marked. Very fast and smooth. Probably just as fast if not faster than 2.1 overclocked to 1.2. For me it seems anyway. Way worth it in my opinion.
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My GPS wasn't working at all on Quantum 1.3, has that been fixed on DK17?
mikel719 said:
How many hours would you say you where using it, while at work?
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Click to expand...
Click to collapse
Probably around 3-4 hours and an hour of that being lunch with me using the phone pretty much the entire hour texting and browsing the web.
Ok, just flashed to 2.2 with the modem from odin and clock work. Gonna see how it turns out.
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mikel719 said:
battery life is the 1st on my list of importance so some with respectable performance would be nice to know so i could make my first froyo jump. Thanks in advance.
Click to expand...
Click to collapse
Honest to God I'll never understand comments such as these. If battery life is the most important thing then why the hell did you buy the most power hungry phone? You bought it for performance didn't you???? Performance and battery life are polar opposites. Much like horsepower and fuel economy.
Let me save you some suspense... you'll never get more than a day out of this phone. At least not if you actually use the damn thing. If you travel, take a car charger. If you are in the office, have a charger with you. If your job requires you to be away from power then bring an external battery. The phone lasts a normal work day between charges so install 2.2 and enjoy your phone for what it is... a powerhouse!
Btw, the battery life seems pretty good in comparison to stock 2.1.
Or u can buy one of the double or more life batteries for $100 that comes with a modified battery cover to fit the extended battery, then couple it with a kickass kernel (phoenix) and have the best of both worlds
Sent from my Epic 4g
I lost GPS going to Froyo which worked perfectly for me in 2.1. Other than that everything else is better..
I found wifi on froyo drains battery like crazy. Also when I set the browser bookmark to list view the next time I open bookmark brower will fc on me. Other then these and the camera bug, phone seemed to work well..
Leon H said:
My GPS wasn't working at all on Quantum 1.3, has that been fixed on DK17?
Click to expand...
Click to collapse
GPS isn't working yet. People have some really ghetto work arounds that work for 1-2 days, but in the end GPS is still bugged as hell.
really think i am gonna hod out for a while....just sayin!

Cm4dx nightlies

Have people been getting better battery life with the nightlies? I'm not ttoo impressed with the battery life compared to apex....
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Mine actually seems to be getting worse. I adjust the build.prop to make the wifi scan 1200 seconds (if im using wifi, I know I'm near it...don't need to search every 45 seconds for it) I also adjust the maxwindows events to 80 and my vm heap to 128, but I'm not sure if that affects battery life
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From what people are saying, the battery life is improving with every nightly to the point that the battery is up to par with Stock Rom.
Of course there are others that have reported that their battery life is the same or worse.
I'm not on the latest nightly, I'm on 7, but this one offered me a significantly better battery life than without them.
Since there are users that are reporting both sides of the spectrum, the only real way your going to be able to gauge battery life is by installing them yourself.
I'm hoping that someone starts a thread soon in regards to nightly details for cmda_shadow here on XDA, but your best bet for more details is the cyanogen forums or even rootzwiki where the CM4DX community is a lot greater than what it is here.
Thanks, I installed nightly 14 yesterday and the battery life has improved compared to the first release...
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i had the best battery life on build 9.
also try using jrummy's android overlclock app and try running on ULV or LV.
most users have reported better battery life.
I was upto nightly 14, but just switched to a gb rom because of battery life. On cm, I had to charge at least twice a day + overnight. It was awful.
skennelly said:
I was upto nightly 14, but just switched to a gb rom because of battery life. On cm, I had to charge at least twice a day + overnight. It was awful.
Click to expand...
Click to collapse
I agree battery life isn't the greatest, hopefully when we get to RC status We'll start seeing better battery life.
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Nightly 17 has given me pretty good battery life
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hullie10 said:
Nightly 17 has given me pretty good battery life
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I think nightly eighteen has given me the best battery life thus far. I'm at 15% with 13 and a half hours. Still not what I was getting on stock though.
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My battery life has been pretty even with other ROMS.
It doesn't do as well over-night (likely due to the lack of the 'night time battery saver mode' that Moto built into their roms.
Thinking about hooking up Tasker or other such program to emulate that.
I am on the 19th nightly and have not noticed much difference in battery life from the previous ones. I am running DroidX OC at ULV and am at 19+ hours with 30% battery left. I have the brightness all the way down as far as I can take it, and have used the phone moderately heavy. I read on another forum that the Minimalistic Text widget was draining batteries so I uninstalled and can tell the difference a bit. Also, for those who are under-volting their phones google around and find the best settings. The stock ULV is much higher voltage than what I am running at the moment. Best of luck to all, but I LOVE CM7!!!
A
Zaphod-Beeblebrox said:
My battery life has been pretty even with other ROMS.
It doesn't do as well over-night (likely due to the lack of the 'night time battery saver mode' that Moto built into their roms.
Thinking about hooking up Tasker or other such program to emulate that.
Click to expand...
Click to collapse
I would put my phone in airplane mode overnight and it would still drain the battery. My routine became:
Pull the phone off the charger at 6 am
Put it on the car charger around 10-11 am
Back off at 3-4 pm
Charge overnight
I'm excited for the rc, but will stay on liberty aosp until then. There are many things I miss already from cm(like the notification bar toggles and up to 16 most recent apps when long pressing the home key).
I'm currently running nightly 18, I wiped my battery stats this morning at 11AM and been listening to music on and off since then, It's 8:30 right now, and I'm at 60% right now.
I'm pretty pleased with the battery life right now. Maybe as the builds continue on the battery life will get better. Compared to some over the other ROMS I've used it's pretty much even now for me.
Yeah I'm on nightly 18 and I'm liking the battery life on this one.... I read on rootzwiki that someone is trying to port over the sense 3.0 lockscreen...if that happens I'll be content with cm4dx!
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Now we have 1% battery increments! Head over to rootwiki
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which for better battery life: Open Soju or GB-ns4G-deck?

Hi guys, I have a Sprint NS 4g. (saw another similar thread, but they are discussing ROMs for the other versions...) I stopped using it because the battery life is miserable even though I have 0% Time Without Signal. (My rooted Evo literally lasts 3x as long at this NS.) Therefore I am looking into alternative ROMs.
Any idea which of the above ROMs has better battery life?
Thanks!
I've been using mikeyinid's rom in the ns4g dev section. It's titled "updated 6/27/11..." using matr1x kernel. Had very good battery ever since he went to the new kernel and I'm using it as-is. No performance tweaks.
Sent from my Nexus S 4G using XDA Premium App
Thanks - would you provide a link? I don't see that one. Thanks
You really get better battery on your evo? My ns4g lasts so much longer than my evo on any rom. I prefer cm7 for the options, with heavy use I can still get 20 hours
Sent from my Nexus S 4G
Yeah, my Evo goes for 1.5 days with a lot of use. The recent roms are great on battery life.
My Nexus goes maybe 5 hours with heavy use.
brokentoaster24 said:
You really get better battery on your evo? My ns4g lasts so much longer than my evo on any rom. I prefer cm7 for the options, with heavy use I can still get 20 hours
Sent from my Nexus S 4G
Click to expand...
Click to collapse
Broken, any tricks to get batt life that long? I have had two NS phones, each with dismal battery life.
ronnienyc said:
Broken, any tricks to get batt life that long? I have had two NS phones, each with dismal battery life.
Click to expand...
Click to collapse
If you are using your phone non-stop, meaning you have the screen on straight periods of time, 5 hours is not bad, really. You have to remember that the SAMOLED screen sucks battery down. On the weekends when my phone is on all the time, I generally have to swap batteries 2 or 3 times in a day. Thats very heavy use, of course. During the week with moderate use, texts, gtalk, emails, and xda app, I get 10- 12 hours on a charge. Screen on time is a killer with the NS
Why does this thread get more hits than mine?
Sent from my Nexus S 4G using XDA App
I am trying Soju right now - so far it looks and feels elegant.
My NS4G gets way better battery life than my Evo did probably almost twice as long. But aside from that I have had good lick with open soju and Cyanogen. Open Soju was nice because it has voodoo control for headset audio which really takes advantage of the wolfson headphone amp built into the ns. Voodoo makes the audio like night and day once you have tried it you cant go back. Than Cyanogen is great many options but to get voodoo I had to use nets kernel. Both having great battery life but Cyanogen has more options but its still in beta.
Edit: I did not really answer your question about the GB-Deck because I have not used it but have heard good things you have to flash gapps with it like Cyanogen.
There's really something to be said for turning down the screen brightness. Also make sure you have wifi sleep on never. Try james bond kernel and let it settle for a couple days. First day or two of a new rom/kernel will be a little low on battery
Sent from my Nexus S 4G
My Evo has been unplugged for 16 hours of heavy use, and there is now 28 percent battery remaining. This is with a current 2.3.3 rom. Well done Google.
ronnienyc said:
Thanks - would you provide a link? I don't see that one. Thanks
Click to expand...
Click to collapse
Here you go...
http://forum.xda-developers.com/showthread.php?t=1070383
Sent from my Nexus S 4G using XDA Premium App
Thank you sir.

[Q] Choosing a ROM, battery life a must

Hi. I'm thinking about flashing my first ROM on the Droid X. I've been using rooted GB for awhile and I'm finally just getting bored and ready to try something different. I really am not looking for much though. My order of prefs are:
Stability > Battery Life > Performance
Mods and tweaks and things of that nature are not really a huge concern for me. I just want everything to work well, and have great battery life. I'd love to hear some suggestions.
Ryzor said:
Hi. I'm thinking about flashing my first ROM on the Droid X. I've been using rooted GB for awhile and I'm finally just getting bored and ready to try something different. I really am not looking for much though. My order of prefs are:
Stability > Battery Life > Performance
Mods and tweaks and things of that nature are not really a huge concern for me. I just want everything to work well, and have great battery life. I'd love to hear some suggestions.
Click to expand...
Click to collapse
i know this is gonna sound funny maybe.
i have a vzw droid-x that i am running the alltel rom on.
i put the phone in airplane mode and enable:
wifi off never
power savings wifi always on
i get at least 24hrs
now the equivalent rom to this would be the vzw 2.2.340
if you do not enable airplane mode and disable everything else i dont see why you would not be able to get the same results.
i get amazing battery life with the rom i said i was using above and dont forget this is with an "always on wifi" never ever disconnects
DSX and Shuji are great candidates for you. DSX is not flashy. It is completely reliable and battery life is stellar. You will not be disappointed. Shuji has great battery life as well and is more customizable. My primary phone always stays on DSX though. Ran 5 straight hours of Netflix and still had 5% left. Not sure too many roms can do that.
Sent from my DROIDX using XDA App
I also run DarkSlideX and can verify what is said above. Battery life is excellent. I probably make 20-30 minutes of call a day along with 2-3 dozen texts and 2-4 hours of web, forums, etc. I'm usually off the charger around 6:30am and back on it around 9-10pm with 20-30% battery remaining.
Stability has been awesome as well. I have had one reboot in 2 months, it happened about an hour after flash and that was it. BBCrackman did an excellent job with this.
If you want to try a theme for it, wulf has made some equally as nice themes, too. There are also a few custom sliders and a crt mod, too.
Everything can be found at MyDroidWorld and each has a dedicated thread complete with instructions. Best part is you're already on the pre-rooted 596, so all you should have to do is flash DSX right on top.
EDIT: also, much of the VZW bloat has been removed and it still has some blur present. HDMI support is working, too.
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Give apex a try. Very stable and fast. I usually got about 18+ hours on stock battery with heavy usage.
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I'm not quite sure how to respond to Apex and 18 hours of HEAVY usage. On a stock battery? Up till now I've never questioned someone's post, but this individual seems to have a serious question he'd like some input on. I don't have to be a modder, developer or themer to know no rom gives 18 hours of heavy use unless it's hooked up to a car battery. And even that may be questionable.
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What about vanilla rom?
Thanks for the feedback guys. DSX and Shuji were a couple that had jumped out at me in my readings. I think I'll give them a shot!
-Ryzor
Dsx was my first flash and haven't gone looking for another. Stable good battery, I'm a heavy user and smooth.
Across the airwaves via DarkslideX in 602 limbo.......
Wow. I went with darkslide and I'm loving it. I fully charged the night before last and I'm still at 50% today. That's with lower than usual usage, but still a huge improvement in battery life.
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Ryzor said:
Stability > Battery Life > Performance
Click to expand...
Click to collapse
Yeah, you and the millions of other X users.
Ryzor said:
Wow. I went with darkslide and I'm loving it. I fully charged the night before last and I'm still at 50% today. That's with lower than usual usage, but still a huge improvement in battery life.
Sent from my DROIDX using XDA App
Click to expand...
Click to collapse
Glad you gave it a try. If you haven't already get battery calibration from Nema on the market and run that as well.
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The latest cm has great battery life, and is buttery, smooth. As far as stability, and I have yet to have a problem, but but there is a slightly higher chance of issues compared to other roms.
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