[Q] Battery drain using CM12 Android 5.0.2...?! - Desire 816 Q&A, Help & Troubleshooting

So I've been using my HTC Desire 816 with the CM12 rom on it for just over a week now and I can't really fault it. I've yet to run into any major issues and everything seems to be working perfectly for me. I have however noticed a bit of a difference in the battery performance. Before using CM12 I was just using the standard HTC rom and I would get roughly a day and a half of battery life with moderate uses. Now, I'm getting only about a day or so. I was under the impression that Lollipop had better battery managements, but it doesn't seem to be the case with me. My battery will drain between 10-15% just over night, whilst the phone isn't even being used!
I am also updating to each nightlies as and when they arrive, which is normally daily obviously. So I'm always running the latest version of CM12.
Is this just me or is this something everyone has noticed who is running CM12? I had read online that it could be to do with Google Play Services doing a lot of wake-lock background checks. Is there anyway to fix this issue without causing any other major issues arising?

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[Q] G2 ROM on Desire Z = Lower Battery Life?

Guys,
I've been jumping between ROMs since rooting my phone last week and one thing I've noticed is that my battery life takes a big hit when I'm using the G2 ROM.
You'd think that since it's a lot closer to stock Froyo than the Bell Desire Z ROM it would have better battery life, but that not what I'm seeing.
With both ROMs it seems that they will stay at 100% for a two or three hours and then start coming down - however it's much more dramatic with the G2 ROM and it seems as though it's battery drain gets accelerated.
Has anyone else noticed this?
vro25 said:
Guys,
I've been jumping between ROMs since rooting my phone last week and one thing I've noticed is that my battery life takes a big hit when I'm using the G2 ROM.
You'd think that since it's a lot closer to stock Froyo than the Bell Desire Z ROM it would have better battery life, but that not what I'm seeing.
With both ROMs it seems that they will stay at 100% for a two or three hours and then start coming down - however it's much more dramatic with the G2 ROM and it seems as though it's battery drain gets accelerated.
Has anyone else noticed this?
Click to expand...
Click to collapse
yep,
i have noticed this too,
try an interactive governor with your setcpu and bacon bits, it may help
JD
JupiterDroid said:
yep,
i have noticed this too,
try an interactive governor with your setcpu and bacon bits, it may help
JD
Click to expand...
Click to collapse
Are you using the Modaco G2 or CM 6.1 RC1?
vro25 said:
Are you using the Modaco G2 or CM 6.1 RC1?
Click to expand...
Click to collapse
For my part, while using CM 6.1RC1 the battery drain was amazingly bad.
Under Modaco G2 ROM, it's more reasonable. For casual use for 7h since being unplugged, I'm at 76%.
daft.71 said:
For my part, while using CM 6.1RC1 the battery drain was amazingly bad.
Under Modaco G2 ROM, it's more reasonable. For casual use for 7h since being unplugged, I'm at 76%.
Click to expand...
Click to collapse
My phone's been unplugged for almost 7hrs and I'm at 85% battery on my original Bell ROM.
If you have Spare Parts installed, check Battery History. From there click on the "Running" bar. This will tell you how much time the phone has spent "awake" (this excludes the time the display has been on or while on a call).
I'm at 2hrs 18mins (+20mins with the display on).
Give my stock g2 rom a chance and tell me how that compares. I get better bat life out of stock kernel myself. Bet we could use some uv.
I've noticed something new.
I had my SIM card out of my phone today and it's been unplugged for 5hrs with not cellular network (but everything else going via WiFi) and it's still at 99% battery life.
Uptime is 5hrs 53mins with Awake Time at 1hr 36mins.
Is the cellular connection using more battery than it should be?
it looks like a combination of issues.
1. the android system uses a lot of battery
2.cell standby uses a lot of battery but less than android system
i have a unlocked bell desire z.
installed CyanogenMod RC2 but had to roll back to a sense based rom because the battery drain was just too much.
I figured it out, Kik Messenger was the main culprit.
It's been great since I uninstalled that.
To figure it out o had to restore to a clean rom and install one app at a time. At that point id leave my phone alone for a couple hours and check "wake" time under battery history in Spare Parts. If it was more than 10% we had our app.
Sent from my Nexus One using XDA App
seems to me the mocado in my g2 gets better life than the stock g2.
id give up a lot of features for good bat life.
are there any roms created for bat life?
gnormal said:
seems to me the mocado in my g2 gets better life than the stock g2.
id give up a lot of features for good bat life.
are there any roms created for bat life?
Click to expand...
Click to collapse
ei did you unlock your phone already?

Best ROM for battery?

What is the best ROM for battery usuage?
Every sense with leedroid kernel...
Sent from my Desire HD using Tapatalk
i use revolution hd 3.1 and its great for performance and battery
I will second that Revolution HD 3.1 makes such a difference to battery life, its much smoother than stock too. Tried CM7 and CoreDroid but they were both a little too battery hungry to be useful.
ROM, Kernel and Radio
I have used LeeDroid HD, Spike CM7 and Android Revolution HD. All with different kernels and radios.
I would think the battery drain has to do with both ROM, Kernel and Radio versions (and maybe more). So it's vital that all the components is compatible. Most ROM devs recommend both a radio and a kernel.
And of cause it depends on all the services and app installed after the flash
Anyway, to you question:
I use the new Spike CM7 build 19 and have great battery life now.
I had problems with no sleep mode on other ROM/Kernel before. (and yes I have tried various patches)
I'm using CM7 latest nightly with mad murdocks battery fix and the the most latest radio and I'm getting 3-5 mA battery drain while in standby (with constant 3g, mobile data and sync on). So I'd say all the roms are quite close to each other when it comes to battery drain nowadays and the battery drain isn't a main concern anymore while choosing between roms.
My friend and myself bought the phones on same day. He runs Revolution and I run LeeDroid. Looks like there is a small advantage with LeeDroid.
i'm using Spike CM7 build 19 flashed with mad-murdock's batfix build7 and my battery life is great
I recommend Android Revolution HD 3.2 for you!
I had 2-3 days of battery with ARHD3.1 all the time!
matt_pan said:
I recommend Android Revolution HD 3.2 for you!
I had 2-3 days of battery with ARHD3.1 all the time!
Click to expand...
Click to collapse
Not using the phone much huh?!
Vispe85 said:
Not using the phone much huh?!
Click to expand...
Click to collapse
Yes and No
I don't know what would be much...
But with texting all day, some calls I get this, but yeah, I immediatelly turn off the display after using my phone and have deactivated all unnessesary stuff
I also removed most of the sense stuff and don't use twitter or something
the only syncing things are mail (every hour) and google (once a day)
but yeah, 1-2 days are easy with this, but mostely 2+
matt_pan said:
Yes and No
I don't know what would be much...
But with texting all day, some calls I get this, but yeah, I immediatelly turn off the display after using my phone and have deactivated all unnessesary stuff
I also removed most of the sense stuff and don't use twitter or something
the only syncing things are mail (every hour) and google (once a day)
but yeah, 1-2 days are easy with this, but mostely 2+
Click to expand...
Click to collapse
I'm not saying that it isn't possible as you can get a week out of the device if you just let it run on standby but as soon as you switch the screen on the consumption jumps to at least around 200mA and add a little gaming, browsing etc the consumption doubles from that (not an exact figure). So what I am saying is that it's kind of false to imply that another rom has way better battery consumption if you really don't use it that much. As it has been implied in many other threads that you just can't get over a day out of the device if you actively use it. It's just maths and there is no way around it as 1230mAhs will only get you that far
It is possible to get a few days by using it as a "regular" phone, it is all really usage dependent, and therefore the times are pretty hard to compare.
I am seeing a battery improvement using Coredroid V4 over Coredroid V3.2.
Today I have given the phone light use, about 4 short phone calls, email browsing, some facebook browsing but no gaming and I am at 73% after 12 hrs from full charge.
Combination of Buzz 1.3.8.2. 1.61GHz kernel, ARHD 3.2 with sense and the recommended radio is working great for me battery- and performance-wize. Using On demand gov at 1.22 GHz with 230-460MHz screen off profile.
Vispe85 said:
I'm not saying that it isn't possible as you can get a week out of the device if you just let it run on standby but as soon as you switch the screen on the consumption jumps to at least around 200mA and add a little gaming, browsing etc the consumption doubles from that (not an exact figure). So what I am saying is that it's kind of false to imply that another rom has way better battery consumption if you really don't use it that much. As it has been implied in many other threads that you just can't get over a day out of the device if you actively use it. It's just maths and there is no way around it as 1230mAhs will only get you that far
It is possible to get a few days by using it as a "regular" phone, it is all really usage dependent, and therefore the times are pretty hard to compare.
Click to expand...
Click to collapse
I did'nt say that it all depends on the ROM I use, but with my normal mobile phone lifestyle and this ROM I get those battery lifetime. It was ment as an example, because on the other hand, if I use my DHD more frequent with playing games and stuff, I don't get around the 24h with a single battery charge, but that's (like you say) ROM independet because of the big display consumption and the 1230mA battery.
I just wanted to state the ROM I use with my normal battery experience for the thread author to test out.
It all depends on the user
Vispe85 said:
Not using the phone much huh?!
Click to expand...
Click to collapse
I can easily reach this with stock rom...
Syncing every hour, sometimes tweeting, txting, and sometimes looking in market, just normal use.

[Q] Battery life poor since JB

Hi everyone,
My One X used to have brilliant battery life. I didn't turn on the screen that often throughout the day, but I was able to regularly check the news, send and receive texts, make a few calls and - crucially - keep my Wifi on for the entire day. With this setup, I was regularly getting 4 or 5 days of usage without having to charge my phone. However, as soon as JellyBean came along as an official update, I grabbed it... since then, I'm lucky if I get a day and a half out of it before I need to plug it into the wall.
I'm not running any custom ROMs: just whatever I get through official O2 OTA updates. Battery usage says that 36% of my drain is due to Android OS, with another 20% due to Maps. The rest are tiny, only 2 to 5%. Now I understand that a new version of Android might make some new demands on the hardware, but from what I heard, the update was supposed to improve battery life if anything. Even with the new Power Saver feature on, the difference is minimal, with only a few hours standby time gained overall.
Can anyone suggest anything to remedy this, or is this fairly normal? It's not world-ending and perhaps I was just really lucky to get 5 days of use in the first place, but thought I'd ask the experts before I grin and bear it. Thanks in advance for any help or advice.
19 hours and 40 minutes into this usage cycle, I've got 57% remaining. So it's shaping up to be about 40 hours of usage, down from 120 at its peak. Right now, it's also saying that Android OS has used 99% of my battery... and nothing else is on the list.
Does no-one have any idea what's going on?
Did you make an hard reset when you updated your phone?
This is why when you upgrade your phone to a newer Android version it is better if you perform a hard reset
AW: [Q] Battery life poor since JB
I suffer(ed) also under heavy drain due to maps since update to JB. But I'm convinced it's cause of Google Now. Disabled it yesterday and will check whether it gets better or not. Try disabling gnow and see if it gets better. I also had issues with gsam battery monitor in case you use this.
Sent from a Venom-powered Beast
This is my last charge 3 half screen time isn't bad.
play tekkit lite? come join my server for some fun. 193.35.58.2:25575
Sent from venom injected one x
Would you consider rooting because custom roms like blade have great battery life
Sent from my HTC One X using xda app-developers app
k-c-0 said:
I suffer(ed) also under heavy drain due to maps since update to JB. But I'm convinced it's cause of Google Now. Disabled it yesterday and will check whether it gets better or not. Try disabling gnow and see if it gets better. I also had issues with gsam battery monitor in case you use this.
Sent from a Venom-powered Beast
Click to expand...
Click to collapse
Thanks for this. Your suggestion got me checking for other people having issues with Google Now and battery life. I disabled it as you suggested and I'm definitely seeing an improvement. It's still not as good as it was, but I think I might be able to squeeze more than two days out of it now.
Do you have stock rom? Because I've just upgraded to JB yesterday and flashed a custom rom, and since then my battery is like 3 times more powerful.
You should definitely switch to a custom rom... Ever since I upgraded to JB I've seen a massive improvement in my battery life.. From barely making it through the day to almost 2days of my typical of usage.
Google Now does seem to kill battery as it polls the Google maps app a lot.. So I usually open task manager to make sure it isn't running in the morning background.
Sent from my Nexus 7 using xda app-developers app

[Q] Can firmware be related to battery life?

Hi all
This may seem like a stupid question but I'm racking my brain for solutions.
Previously I've been quite impressed with the battery life on the M8, however recently updated to the most recent firmware so I can use the current version of ARHD and since then I've seen a considerable reduction in battery life. For example, today I've been off charge for just under 12 hours and have used the device very little (1 hour 26 of screen on time) and I'm down to 20%, with screen usage right at the top of the battery use chart. I've tried different ROMS, into a GPE ROM, only to see this poor life continue.
The handset was bought from Three in the UK, and on baseband 1.19.21331147A1.09G-20.57.4196.01L_F.
I'm at a bit of a loss basically, and trying to narrow down a culprit. If anyone has got any ideas I'd be very thankful.
munkimatt said:
Hi all
This may seem like a stupid question but I'm racking my brain for solutions.
Previously I've been quite impressed with the battery life on the M8, however recently updated to the most recent firmware so I can use the current version of ARHD and since then I've seen a considerable reduction in battery life. For example, today I've been off charge for just under 12 hours and have used the device very little (1 hour 26 of screen on time) and I'm down to 20%, with screen usage right at the top of the battery use chart. I've tried different ROMS, into a GPE ROM, only to see this poor life continue.
The handset was bought from Three in the UK, and on baseband 1.19.21331147A1.09G-20.57.4196.01L_F.
I'm at a bit of a loss basically, and trying to narrow down a culprit. If anyone has got any ideas I'd be very thankful.
Click to expand...
Click to collapse
I think so, I've been having problems with mine recently but I thought it was because I'd rooted and then unrooted back to stock this week. Now I suspect it might have something to do with the latest FW. I'm managing around 18 hours but there's something keeping the phone awake so it can't get into a full sleep and save the juice.
eternal_inertia said:
I think so, I've been having problems with mine recently but I thought it was because I'd rooted and then unrooted back to stock this week. Now I suspect it might have something to do with the latest FW. I'm managing around 18 hours but there's something keeping the phone awake so it can't get into a full sleep and save the juice.
Click to expand...
Click to collapse
Hi guys. I'm on the latest FW2.22.401.4 too. On my main uni (rooted but stock) I'm not confronting such problems. But on my secondary unit with ViperOne (M8) installed I'm having such problems sometimes (not always). Think this is quite wired, as Venom works with the stock kernel ....
munkimatt said:
[Q] Can firmware be related to battery life?
Click to expand...
Click to collapse
Absolutely. Firmware contains radio baseband, which IMO cell reception is one of the greatest contributors to battery drain (aside from the more obvious factors like screen on time, runaway wakelocks, etc.). It could be that the new radio does not happen to play well in your area. This would also explain if some folks are getting better battery life than you on the same firmware, as reception is often a local factor.

[Q] Lollipop Reboots

Just curious, if anyone has seen any random reboots since upgrading to 5.0 or 5.0.1?
I've played around with lollipop for week or so now, and I haven't experienced one single reboot... Unless, I've initiated it myself that is.. How about you?
Not that but bad battery life is affecting my tablet dramatically.
No reboots to speak of for me, and battery life has been about the same if not slightly better.
I got one on 5.0 (kernel panic). Haven't had any yet on 5.0.1.
itsdacj said:
Not that but bad battery life is affecting my tablet dramatically.
Click to expand...
Click to collapse
Weird. My battery's been the best it's ever been.
All location, syncing, wifi etc left on I'll get 7 hours screen time over two days no problem, with no gaming 8 hours. Idle drain is like nothing compared to all previous versions.
Find out what app is draining it or what wakelock is keeping it up. If you haven't already, flash the factory image without keeping data.
5.0.1 is ****ing NICE.

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