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As I posted in another thread:
I am lucky to even get 12 hours with minimal use. No calls, just some texting and maybe browsing my bank website. Screen is always the killer for me, even on 20% brightness. If I go lower the screen actually flickers.
I bought the red HTC Chichitech batteries and they didn't help me at all.
Tried overclocking module, didn't change much.
The only app that ever shows any significant battery use (over 5%) is Maps, when I use maps.
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Click to collapse
I am rooted, S-OFF, using the Sense Modaco ROM. Battery usage was no better with the Stock Bell Rom before rooting or S-OFF.
My main concern is the screen flickering at low brightness. it's as if it's unable to decide on a specific level of brightness and makes me question if it's actually saving any power.
I set my phone to Auto brightness and I am going to see if that is actually worse of if it's on par with 20%.
Ugh - just realized there is another thread pretty much all about this. I thought it was a different issue. Still, does anyone know if there is a better batch of phones or something? I have a FutureShop warranty so it'd be easy enough for me to replace if it will actually provide a solution
No-one has posted anything, to my knowledge, about a different batch of phones having better battery life. I would check out the other threads about battery life (including those on the G2 side too) and see if you can get yours to last better. But it could just be something faulty on your phone/battery.
Auto-brightness would make it even worse..because there is some type of bug or something that isn't making it function like it should. I was also getting terrible battery life until I followed some of these steps: http://www.goodandevo.net/2010/05/20-tips-to-improve-htc-evo-4g-battery-life.html
Biggest killers are any widgets that are constantly updating..or facebook/twitter apps that are constantly updating. As well..i recommend SetCPU to underclock your phone when your screen is turned off. This should also help with conserving battery life along with some of the steps provided in that link.
steviewevie said:
No-one has posted anything, to my knowledge, about a different batch of phones having better battery life. I would check out the other threads about battery life (including those on the G2 side too) and see if you can get yours to last better. But it could just be something faulty on your phone/battery.
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Click to collapse
I am considering waiting a month or so and then having mine replaced. Unless I managed to figure something else out. My HTC Legend had better battery life.
Rickroller said:
Auto-brightness would make it even worse..because there is some type of bug or something that isn't making it function like it should. I was also getting terrible battery life until I followed some of these steps: http://www.goodandevo.net/2010/05/20-tips-to-improve-htc-evo-4g-battery-life.html
Biggest killers are any widgets that are constantly updating..or facebook/twitter apps that are constantly updating. As well..i recommend SetCPU to underclock your phone when your screen is turned off. This should also help with conserving battery life along with some of the steps provided in that link.
Click to expand...
Click to collapse
The reason I want to try auto or higher brightness is to see if lowering it was actually saving me any battery life. I am curious if there's a driver or display issues that causes it to use the same amount regardless of the setting. So far I don't seem to be running out any faster @ auto than I was at 20%, but it hasn't been a long enough time to tell for sure.
Also I am unable to do the battery tip for the evo because once I turn off the phone and go to charge it again, it's instantly green. But I am going to try it anyway even though it's green.
Since writing the first post I used the OC module to get my phone to 1.2ghz. I have SetCPU set to run on boot with the onDemand setting. I have a profile that says to slow the CPU when the screen is off. From what I've read it doesn't make a ton of difference with this particular phone, but we'll see...
rewen said:
Also I am unable to do the battery tip for the evo because once I turn off the phone and go to charge it again, it's instantly green. But I am going to try it anyway even though it's green.
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Click to collapse
Yep, that's what I found too, when you try and charge it thinks it's already charged and goes green straight away again. But as you said, worth a try.
I just wanted to report back and say that I had my phone replaced. So far so good:
- No screen flicker issue at low brightness
- Battery has lasted nearly 20 hours with moderate-heavy use (played NFS Shift, setup basically everything on the phone after rooting, installed all my apps, backups, flashed some roms, 20+ texts, 3-4 short calls, showing people random apps.)
If it's not all in my head then this is definitely much better now!
Curious. It seems that everyone who reports the screen flickering problem has poor battery life.
Defective displays?
I feel my battery life is pretty bad as well. I've unplugged the phone this morning at 7 AM. Now it's 2 PM, and I'm at 37%. In between, the only things I've done are: send/receive a few emails and chat on gtalk. Brightness is at 40%, animations are turned off, wifi and gps location off. Using latest Cyanogenmod (6.1.1) and have no screen flicker issues
Edit: 17 minutes later, it's now at 27%
How long have you had the phone for?
Initially the first few days I got the phone, battery life was really bad, could drain in a few hours.
After a week or two of use, I now have reasonable battery life, the phone can last all day with light usage and still have lots of juice left. Actually I think if you make a few calls and a few txts, battery could last 2 days. If you play with it, one day for sure but you need to plug in over night.
(if you're talking to me) It's quite new, just picked it up on Friday actually. Also I've kept on researching, and it seems that poor coverage (like I have at work, from 7 til 3) tends to drain the battery even more, since the phone keeps switching between HSPA, 3G, etc.
I had my first one for about a month at least. This replacement was from Saturday.
Today I've had my phone unplugged since 8am, it's 5:30pm and I have 45% battery left, but the screen is the #2 user. Standby is #1 @ 40% of my battery usage, due to over 4 hours of time without a signal. The screen is only 24% and has been on for 48 minutes. Voice calls is #3 at 23% battery usage, with 23mins of calling.
My other phone would have died by now.
Also I spent an hour of streaming bluetooth audio to my car. Bluetooth doesn't even register on the battery usage. I've never seen it use more than 2% and it's always on. I am not sure why people say it uses a lot.
Just want to share my experience.
I too had poor battery life. Stock Bell ROM. Got to 3:00 pm and it used to die. Use this for work. Pushing data all day from Exchange server, bluetooth on all day because I'm in and out of the car, talk on average 30 minutes per day, texting, surfing, tethering, blah blah. Believe it or not, my old Omnia II would get me thru the day no problem.
I was also tempted to return it. But I decided to try a few things. Installed Set CPU and a task killer at the same time. Shut down as many tasks as possible on start up. Widgets and accounts, except Exchange-push, run and sync every hour. I get about 40% battery by dinner. I am happy now .
I'm quite happy with my Desire Z's battery life, It lasts for about 36 hours with moderate use. I have Juicedefender and Ultimatejuice installed, data or wifi are opened only when an app needs data connection, this increased my battery life by 10 hours or sth like that. Nice app.
I had terrible battery life until I went overseas. It is a stock Bell ROM, but I arrived in Spain Monday and am using a Spanish SIM card.
My battery life has increased from 14 hours with Bell's 3G signal to my current 27 hours and 35% remaining battery using GSM and WiFi always on. Funny thing is that no matter where I am it says the screen is by far my biggest power drain.
Where did you buy your Desire Z and how did you get it replaced? I'm with Bell and they would take mine to send out for "repair" but not sure if that will do anything. This will take 3-6 weeks apparently and I'm not sure if they it is worth it.
I'm running 10 hours with that I consider fair usage (few calls, text, map/gsp, and facebook.) My display is the highest battery usage at 60% and on for about 1:45h. I'm very disappointed.
Hey,
it's the same with my G2.
Max 24h.
I've standard ROM installed.
No WiFi.
Brightness to about 30%.
Juice Defender is installed and I'm surfing and just the regular stuff, but even if it's just in standby, it's taking a lot of power (display takes most)
Best!
-blubberor
architect_ said:
Where did you buy your Desire Z and how did you get it replaced? I'm with Bell and they would take mine to send out for "repair" but not sure if that will do anything. This will take 3-6 weeks apparently and I'm not sure if they it is worth it.
I'm running 10 hours with that I consider fair usage (few calls, text, map/gsp, and facebook.) My display is the highest battery usage at 60% and on for about 1:45h. I'm very disappointed.
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Click to collapse
I bought mine at FutureShop since I didn't think Bell would let me without buying at least a month of service (or being an existing customer). I also purchased FutureShop's extended warranty which is how I was able to get it swapped for a new one so quickly.
I use the extended battery for the evo. Lasts about 1.5 days with ass loads of use. Just have to trim the plastic edges a bit.
Sent from my T-Mobile G2 using XDA App
I have a couple of those red chichitech batteries but I wasn't able to notice any improvement with the problem phone.
My Desire Z also has a flickering screen at lowest brightness, and with moderate use it dies after about 12 hours max. Even on lowest brightness the screen ueses 59% battery. I rarely manage to make it through the day without having to charge the phone. Im on stock ROM with latest OTA (1.72) btw.
Gonna have it replaced next week just cause of the flickering screen. Has anyone tried the 1700mAH battery from seidio?
Hi All,
I am hoping some CM7 guru's (or anyone really) can help me understand why my phone is not sleeping. I have some screen shots attached showing statistics from Better Battery Stats and Battery Monitor Widget Pro. Its not making sense too me. First, here are my phone specs:
SPH-D700, Android Version 2.3.7, EI22 Modem, CM 7.1.0-Epic-KANG-1124, Build # GWK74
SO, my screen on time is about 11 minutes, yet my awake time is 3 hrs and 18 min. Wifi was on and connected the entire time, and time without signal (phone) is 0%. I started at 75% and after 7 hrs and 26 min, i was at 53% That's a 22% over 7 hours, with VERY minimal usage. Partial Wakelocks indicate no rouge apps utilizing system resources. Any help would be much appreciated.
adamdelozier said:
Hi All,
I am hoping some CM7 guru's (or anyone really) can help me understand why my phone is not sleeping. I have some screen shots attached showing statistics from Better Battery Stats and Battery Monitor Widget Pro. Its not making sense too me. First, here are my phone specs:
SPH-D700, Android Version 2.3.7, EI22 Modem, CM 7.1.0-Epic-KANG-1124, Build # GWK74
SO, my screen on time is about 11 minutes, yet my awake time is 3 hrs and 18 min. Wifi was on and connected the entire time, and time without signal (phone) is 0%. I started at 75% and after 7 hrs and 26 min, i was at 53% That's a 22% over 7 hours, with VERY minimal usage. Partial Wakelocks indicate no rouge apps utilizing system resources. Any help would be much appreciated.
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Click to collapse
I thought WIFI was unstable with CM7. Could that be part of your problem?
I've run into a similar issue when running CM7, without wifi on. Just in a low/no cell signal area battery went from 70ish% to 0 in an hour... no other rom has burned through battery that fast in a low coverage area.. My phone also got rather hot in this same time frame. Looked to see if there were any rogue apps etc, but it just looked like the screen wasn't being shut off, or anytime it got/lost signal it turned on.
tazfanatic said:
I thought WIFI was unstable with CM7. Could that be part of your problem?
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Click to collapse
Wifi is now stable on the 11/24 release. I haven't had any connectivity issues with my wifi at all. In the graphs, it shows my WiFi on the entire time.
pvtjoker42 said:
I've run into a similar issue when running CM7, without wifi on. Just in a low/no cell signal area battery went from 70ish% to 0 in an hour... no other rom has burned through battery that fast in a low coverage area.. My phone also got rather hot in this same time frame. Looked to see if there were any rogue apps etc, but it just looked like the screen wasn't being shut off, or anytime it got/lost signal it turned on.
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Click to collapse
Very interesting...I could understand it if it was searching for signal, but i got 0% of no signal. Service is not great at my house, but last night i had zero signal loss...
yeah.. I spent thanksgiving with my girlfriend's family. at the g/f's place i had great signal, and fast 3g (considering Sprint's map of WY is pretty sparse) but then go 2 miles to her parents house and my phone would be dead in short order. And i know it hadn't ever happened with other roms in the same location (froyo or GB) so I had just flashed 11/24 and did a fresh install of everything. Now, back home I had no issue like that with CM7.
Hey folks,
for those who sufferred from the data outage today, do you observe a severe battery drain in 4G mode?
Even the phone is idle, it is consuming 8-10% per hour, while usually at this time of the day, I will see a straight line if my phone is sitting at the same area idling...
What area is the outage in? The most probable cause for your battery drain is the radio trying to search for signal that isn't there.
Sent from my Galaxy Nexus using Tapatalk
Thanks for replying. I am in midtown Manhattan
Sent from my Galaxy Nexus using Tapatalk
One of the biggest problem is when modern day phones keep looking for a 4G/3G signal in a poor reception area.
Either by forcing your phone to use 3G/2G it should reduce the drain
Sent from my Galaxy Nexus using xda premium
I've done some tests; my PIL's live in a cellular black hole, and drain was phenomenal, no way around it. If I'm spending a significant amount of time there I revert to WiFi and/or turn off data. You'd likely observe some nasty user and kernel wakelocks if you have BBS installed.
I'm in western PA and mine has been going nuts all day trying to pick up 4G, when its normally not a problem. Even after the outages "cleared up", it has been struggling.
yeah.. the problem was, even I turned off mobile data, the drain is still ON. seems to be a problem in celluar signal etc itself.
Similar thing happens when I was at home, one particular place (between two pillows in my bed), the drainage was crazy overnight. even I have wifi on.
Thats because its still an "outage".
The ehrpd network is down and turned off. Devices are now switching between Rev A. and LTE. Expect longer transitions.
Verizon needs to seriously dedicate more time to fixing these LTE issues, but hey how can we complain, they were the "first".
So my excessive battery drain started the other day when the LTE network is down. (NOTE:I am not in an LTE area, and I do not have LTE enabled)
My battery drain is approximately 10%/hour, if the phone screen is off (ie the phone is powered on, but in 'standby' or 'sleep'). If it is doing something (say, playing music to me while I work, which I normally do everyday), it drains even quicker (roughly 15% to 20%/hour). This is much worse than normal.
While I can't say that I'm seeing any 'app usage' that is much higher than normal (mediaserver and com.mixzing.basic [my music player] are right below my screen usage), I can say that suddenly my CPU state percentage (seen using CPUspy V0.4.0) is 70% in 350 MHz, 26% in deep sleep, and the last 4% broken up between the 3 higher speed states. This is disturbing, as previously 350 MHz was not that high, normally I was seeing a much higher deep sleep percentage (over a 24 hour period...this is over 37hours atm).
Something has changed, and I fear it's something in conjunction with Verizon. I haven't changed anything with my phone in this time period, no 'new' rom, nothing. I've been running the leaked V4.0.4 stock ROM (rooted of course) for approximately 2 weeks now. My previous battery time was acceptable. This is not, since I cannot even go from breakfast to lunch now without having my phone tethered to a charger.
Any ideas? I've searched, and nothing else really matches this except perhaps this thread. It's not an exchange problem since I don't have exchange (as others have posted previously about that in other threads, I use gmail for my email).
Hey guys,
after dropping my beloved Nexus 4 to the concrete floor in May, I bought a new S4 mini in the electronic market because of it's decent size and all the fuzz about having a very good price-performance-ratio.
After a few weeks I already was fairly disappointed.
On an average work day (without WiFi) and little use (~30min OSD) the battery wouldn't last a full day. I tried the usual things like turning off GPS, bluetooth and using Wifi whenever possible (turning it off, when not in range), etc. I also used the App greenify which boosted my deepsleep in Wakelock Detector to stable 85+%.
When using GMaps/navigation my phone is getting hot (~50°C) and battery is drained within minutes. When trying to navigate out of the city (<15min navigation) one day my phone was discharged within 3 hours after a full charge. I got Wakelock Detector, Better Battery Stats and Battery Monitor Widget installed.
The only thing I found out, that when I am connected to Wifi the drain is a lot lower 1-2%/hour compared to when I am using 3G/H+ which results in 7-15%/hour (both when not using the phone), although there is no problem with signal quality. Recently my phone started to bottoming out rly hard when hitting the 20% mark. From there I can watch the battery dropping to 0% within a few minutes.
Things I tried so far:
- turning off features that are not in use (GPS, bluetooth, Wifi when not in range)
- make sure phone gets into deep sleep/greenify apps
- recalibrate akku
- reduce brightness & disable auto-brightness
Setup:
GT-I9195 bought in May 2015 from electronic market chain
CM 12.1 (Android 5.1.1, serranoltexx)
Standard CM Kernel
Baseband I9195XXUBML4
I can provide Screenshots from BMW, WD and BBS. Any ideas how to solve this or what else I could do?
Probably you should use something like better battery stats, to check
- if a service is going mad, then turn it off with disable service to test (most times happens with unclean flash)
- if you have an app with wakelocks
If you can't find anything that way, might be a hardware fault.
Personally if I came across this problem I would return the phone to stock Android and do some tests, see if the same happens again. CM12.1 can have issues across different same model phones. Try the Samsung Phone Info app to see how old your phone is. I'm guessing it was second hand? Some older revisions of the Mini had battery problems. Maybe a new battery is needed? Maybe.. As for the battery draining 20%-0% in minutes I have also suffered this on a brand new March 2015 device. Not all the time though it only happens with randomly once a week. But I put that down to the battery not been fully calibrated and then drained and recharged over the next 3 4 days, as I use a spare battery and swap out the batteries regularly which means my battery is very rarely calibrated.
All that said though I can easily get through an entire day if not 2. And using stock I'm able to get 4 and a half hours on average every time, maybe 4 hours of screen on time when using 3G a lot and GPS etc.
NNNexX said:
Hey guys,
When using GMaps/navigation my phone is getting hot (~50°C) and battery is drained within minutes. When trying to navigate out of the city (<15min navigation) one day my phone was discharged within 3 hours after a full charge. I got Wakelock Detector, Better Battery Stats and Battery Monitor Widget installed.
The only thing I found out, that when I am connected to Wifi the drain is a lot lower 1-2%/hour compared to when I am using 3G/H+ which results in 7-15%/hour (both when not using the phone), although there is no problem with signal quality. Recently my phone started to bottoming out rly hard when hitting the 20% mark. From there I can watch the battery dropping to 0% within a few minutes.
Click to expand...
Click to collapse
I have had the same problem as you.
I return twice my phone to vendor. But they could do anything.
I solved it with undervolting and underclocking my phone (only the low frequency).
I read from someone, you can undervolting 150 millivolt.
My experience, is undervolting 125 milivolt. and underclocking the low frequency at the minimum.
You didn't feel any difference, behalves that the phone is cooler and battery live is better.
My WiFi and Bluetooth are always on. I don't have to recharge my phone during the day.
It is so effective en transparent that I don't understand why Samsung didn't do it natively.
Hey,
I tried to apply some of your advice and flashed the newest stock rom for S4 Mini (Kitkat ...COE4).
In that process I recognized that the Baseband is not updated by CM and that the one that was installed when I bought it was fairly old (from 2013). Do you think that this might be part of the problem? (I sort of hate the Samsung Rom)
This week when working and not having Wifi all day, I managed to get 2h of SOT and still had around 25% left which I couldnt have gotten before imo. I only lose 1-4% per hour when the phone is not used. But still thats not pretty good, when ur saying you can get 4h with GPS and everything. I also didnt use GPS. And today when I restarted my phone it just went from 40-ish % to 15% without any reason. Any more ideas?
I installed BetterBatteryStats today and will try to give some more insight the next days. Wakelock detector said that I had 85% deep sleep (timeframe 1 day 2 hours).
Try the Samsung Phone Info app to see how old your phone is. I'm guessing it was second hand? Some older revisions of the Mini had battery problems. Maybe a new battery is needed?
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Click to collapse
No I bought it new from a electronic store (Media Markt). The app says that is was made on Oct 19th 2014 in Vietnam and that it is original/not refurbished.
How much do you gain by undervolting (SOT or % per hour when idle)?
How do you do it?
maybe the best way is to downgrade by flashing CM11 for example ...
(another way with stock + Alexax kernel + own debloat&freeze ... )
I have the same consumption problem with Resurection Remix LP too ..... very strange !
Lollipop is supposed to be less angry than Android 4.X.X ... but it seem have problem somewhere for our S4-mini sources maybe ,i don't know ...
This night I did some BBS tests:
Setup:
Stock Rom I previously installed (see posts above)
charged phone during evening
set up custom timepoint before I went to sleep
WLAN disabled
all apps greenyfied except those I deemed significant that they keep running (Whatsapp, calendar, Swiftkey, BBS, BMW, etc). Forgot newly installed app hoomn.
I had to upload the logfile to pastebin because it was too long for the xda forum: pastebin.ca/3256568 (I am not allowed to post URLs, sorry)
I lost 14% of battery during 9hrs (-1,6%/h). That's probably not too bad?
93% deep sleep, 33min awake time
Weird things I discovered/things I did not understand:
- negative Voltage loss?
- Wifi runtime 100% although I disabled it
- dominant wakelocks (count > 100, all of them < 30s): Alarm Manager, RILJ1, *net_scheduler*, GCM_CONN, ContextManagerWakeLock, Event Log Service, AlarmManager (com.sec.spp.push.Samsung Push Service), SyncLoopWakeLock, GCM_HB_ALARM
- dominant KWLs (count > 100): ril-fd (25min), bam_dmux_wakelock (13min), radio-interface (7min), PowerManagerService.WakeLocks (3min), mmc1_detect (1min), alarm_rtc, alarm, sec-charger-monitor, smdcntl0, pm8921_soc_lock, power-supply, KeyEvents, smsm_snapshot, qmuxd_port_wl_0, qmuxd_port_wl_1, smdcntl1, mmc0_detect
- Alarms (>20): ccc71.bmw (Battery Monitor Widget), android, com.google.android.gms, com.sec.spp.push
any ideas/assessments?
Hi,
I bought the phone in November 2022. Since the day one I experienced issues with battery life but I thought that the phone needs some time to update itself etc. It was loosing around 3-4% in deep sleep which makes around 20%-30% during an usual night. I mean that's a lot compared to my previous phones.
After a month I started changing different settings to check what is happening. No app or setting seems to be draining the battery at least it's not shown in phone setting and AccuBattery which I'm using.
I found out that changing services from LTE to 3G improves the performance dramatically. 5% during a night. I know that LTE drains battery faster than 3G but come on it's between 6 to 10 times better with 3G that LTE.
I already filled a complaint with the shop I bought the phone in but they didn't find no issues with it. I think it must be some kind of a service or process that it's draining it but I don't how to find it and fix it.
Please help, it's driving me nuts!
You need to debloat and change a bunch of settings to get a decent sot and idle drain. With normal use sot in 24h total ("normal use" is of course different for each). Not sure if attaching links here is allowed but here is debloat list and the battery tips. Have at it.