I recorded a 1-hour 35-minute mountain bike ride this afternoon (101.5 degrees btw, DFW mid-cities area) while listening to tunes on PowerAMP the whole time, and went from 95% battery to 86% during that time. Airplane mode was enabled.
That's only 9% battery over more than an hour and a half ... that equates to nearly 18 hours of battery life while recording a GPS track and listening to tunes the entire time! I doubt any other phone could brag about even half of that!
I attribute that battery life to both the low-power GPS module AND the low-power audio module on the SoC in this bad boy.
I've only drained the battery once and fully charged again before today. I even expect the battery to get slightly better as the system calibrates itself over the next few charge/drain cycles.
Kirk out!
Related
My battery life was very good in Mini. I used the phone for normal talking (around 30 mins) and 3-4 hrs of GPRS and battery wwas kept around 20-30% at
10PM after fully charged at 7AM. At that time the battery usage status showed something like this.
Display -40-50%
Android System 10%
Cell Standby 2-5%
Phone Idle 2-5%
Others (not remebering)-the remaining
Suddenly two days ago my battery started dischrging very fast and my full charge at 7AM came to zero at 4.30PM with similar use as stated above. But this time the battery usage shows something like this and consumption always remains highest by phone idle & cell standby parameters.
Phone Idle 40%
Cell Standby 30%
Android System 8%
Display 20%
Others - remaining
Now, my battery is draining a lot faster than it ever had two days back.
My battery had consistently been draining at around 1% per hour idle until today. Now I'm seeing it drop 5% in LESS than an hour while idle (idle meaning the screen shuts off and I don't use it).
So my question is, what do Cell Standby and Phone Idle mean? Previously they had both been 2-5% and my idle battery use was excellent. But today they both shot up to the 30-50% range and I'm thinking this may be the cause for the excessive battery drain even while the phone is sleeping.
I have not changed anything during these two days. But again to be sure I "Factory Reset" the phone and reinstalled all the software again but found the problem persisting. Moreover, during my travel to office (which takes about two hours) I find battery drain is minimum and same as my earlier days, i.e., it drains very slowly but once I enter my office hall the rate of drainage increases, But previously in the hall also the drainage rate was very low.
My queston is what may be the cause of this?
The only change which I feel is deterioration is signal level because the calls now frequently gets disrupted which was not the case earlier. Can this be the only cause for such high battery drainage ?
An exactly similar experience can be found in some other blog whose link is below ( for reference only)
http://androidforums.com/evo-4g-tip...cell-standby-phone-idle-mean.html#post1579318
Anticipating some advice/solution for improvement from the geeks here.
Thanks
i noticed i had the same issue whenever i installed some apps from the market...i noticed in particular a data counter to screen my phone bills and Quick Profiles.
So i suggest to think abotu the last installed apps and try to remove them one by one until you find the guilty one.
Remember afer uninstall to reboot your phone or you won't notice any difference
Have you recently rooted the phone? When I did mine I found there was a shell process left running that was eating battery (but doesn't show in the battery info screen) - Turning off and on again sorted that out
Thanks for reply. I will try your advices. But today I morning I switched off my charging at 4.45 AM and now at 6.37AM I am seeing my battery at 99% ot bad. Let me see throughout the day.
Even i am experiencing this problem
Phone Idle is 59% and Cell standby 37% for me?
Now i have removed all task managers and Info apps
lets see what happens to the battery life
@acemadmav
Your advise helped me to track my problem. I also use a Data Tracker software which was refreshed at 2 min and was the cause of battery drain. Now I have set it to 30 mins and my phone is back to full battery strength. Discharge started at 7.30AM after full charge. Attended not less than 45 mins of call, an hour of GPRS and I am still at 50% at 10PM.
@tejagamer
My Phone idle & Cell Standby is still high at 30% and 25% respectively. I googled about this and found that "Phone Idle" is the state when phone uses minimum battery required to keep the electronics of the phone alive and "Cell Standby" is battery consumed for communicating with cell towers in standby mode. Finally, when battery consumption is ok the percentage used by Phone Idle & Cell Standby doesn't matter.
Thanks
parthabhatta said:
@acemadmav
Your advise helped me to track my problem. I also use a Data Tracker software which was refreshed at 2 min and was the cause of battery drain. Now I have set it to 30 mins and my phone is back to full battery strength. Discharge started at 7.30AM after full charge. Attended not less than 45 mins of call, an hour of GPRS and I am still at 50% at 10PM.
@tejagamer
My Phone idle & Cell Standby is still high at 30% and 25% respectively. I googled about this and found that "Phone Idle" is the state when phone uses minimum battery required to keep the electronics of the phone alive and "Cell Standby" is battery consumed for communicating with cell towers in standby mode. Finally, when battery consumption is ok the percentage used by Phone Idle & Cell Standby doesn't matter.
Thanks
Click to expand...
Click to collapse
glad to help...it's been some months i'm "testing" my X10 mini about this kind of things, so i'm getting used to track down problems on my phone
Battery life has been pretty great on my EVO 3D using juice defender and SetCPU.
Switched to Sprint for this thing yesterday and I gotta agree. Coming from an SGS I've learned to be paranoid about my battery life, so when I barely see the battery draining off this thing I have myself convinced that it HAS to be a bug lol
How is your awake time so low compared to your up time!!
How can I see what is keeping my phone awake.
pkny said:
How is your awake time so low compared to your up time!!
How can I see what is keeping my phone awake.
Click to expand...
Click to collapse
Because in the time that the phone has actually been powered on, its only been in use 4 hours. If he had been really using it, the battery would be down more than it is, but its still good battery life.
I agree, of all the devices have had so far, HERO, EVO 4G, EPIC, 3D. the 3D (comparing all of them on stock) has had the best battery life of them all. Heck even my Rooted EPIC with SFR 1.1.1 didnt get quite as good battery life, and it was rooted.
you guys know that the 3d has a larger battery than all those phones listed right?
still has the best battery i've used.
Well you will get amazing battery life turning the display brightness down anyday though. Still i have to agree this phone has great battery life. On auto my biggest battery drainer is the display but still I can get through all day with the phone. I unplugged the phone yesterday at 6 in the morning and at 9 at night I still had 20% battery life and that is with medium usage.
you barely used it. i can get great standby time too. but once i have the screen on and turn data on or a game you drop something like 10 percent an hour.
in the past 53 minutes ive had my screen on for 17 minutes. lost 8 percent.
Up Time: 37:49:30
Awake Time: 05:17:50
Battery Remaining - 52%
Impressed with battery life thus far.
I think the battery life is even better at 1.5 GHz and stock voltage.
well you guys are lucky cause my battery life stinks. medium usage, brightness at 30% sync accounts knocked back , no 4g and im getting 4-5 hours out of this thing which I think is terrible. something is wrong. Anyone else experiencing the same ?
how much of the battery is listed as "display"? last week while i was working i would leave my phone in my truck and come check on it an hour later to notice a 30%+ drop in battery. it would die after only being unplugged for 5 hours. but then i realized my screen wasn't ever turning off so if i got a text, notification, etc. that turned my screen on, my battery got drained idling in my truck.
rebooting usually fixed it but i think it was one of the early temp roots that really was causing it because i don't think it happens anymore
under battery usage the display is 75% percent of drain the rest is voice calls
mine is stock, no root here
Wow thats crazy my phone has an up time of 87 hours and an awake time of 69, i still have 95% battery left.
I'm dominating all of you.
Or maybe those two numbers mean nothing besides how long the phone has been on, and not anything to do with battery
tablo said:
Up Time: 37:49:30
Awake Time: 05:17:50
Battery Remaining - 52%
Impressed with battery life thus far.
Click to expand...
Click to collapse
Battery Remaining Now - 51%
Battery Usage:
Display - 35%
Voice Calls - 21%
Cell Standby - 14%
Phone Idle - 12%
Wi-Fi - 8%
Maps - 6%
Battery life is awesome on this phone. I still think its too good to be true. When I turn off mobile data, I can easily go a whole weekend without charging my phone. And that's with sending and receiving over a thousand texts, taking random drunken pics and vids, and talking on the phone for long periods of time. I only turn on mobile data when I need to sync up for fb, email and such or look up stuff, and I've pretty much been charging my phone every other day, and sometimes on the 3rd day. This alone makes this phone priceless to me and I've never been so satisfied with a phone like I am now.
Sent from my PG86100 using XDA App
All and all battery life on this phone is average. It lasts the same 9-10 hours as every other android i've owned. I spend the same amount of time doing the same things day in day out.
The only android I've ever noticed an exception was the NS4G and it had crazy battery life, easily 20 hours.
I think its better to post time the display or voice calls was used rather than percentage.
I'm at about 13 hrs usage with about 2hrs and 50 minutes with the display on. Probably close to 20% battery left
Sent from my EVO 3D
Hi guys, will need your help.
would love to get your input in your battery discharge overnight when the prime is not in use. i noticed that my prime drops about 10% overnight. i highly doubt this is normal.
my ipad 2 drops about 1% in a day if not used...
also i noticed that when docked, the dock drops about 2% a day and thats even if my prime is fully charged and not in use.
your input would be appreciated.
The last time I checked this -- on the .13 release -- mine drops 1-2% overnight. However, I'm very conservative on power usage and do things like turn off the Wifi when I am not going to be directly using it. I don't have Bluetooth on either and have all apps set to sync manually as far as is possible.
Mine dropped about 2% last night, with Wifi on, Bluetooth off, and apps set to auto-update.
Mine drops 1-2% an hour when idle and docked with wifi off and power savings mode. When it's not docked the battery is much better in idle. When wifi is on the battery idle sucks
Hello,
I've been wondering if it's possible to recalibrate how the system reads the remaining battery charge. I'm using Rage 2.8 kernel for FXP and battery life is very good (over 30h with moderate HSDPA youtube streaming, browsing etc.), but what bugs me is that it goes from 100% to 80% extremely fast, then it slows down as it reaches 0%, it can hang on 1% for an hour before it finally shuts down.
I'd like it to be somewhat linear (even if the real physical battery discharge cycle is not linear), is it possible?
Cheers!
aidennwitz said:
Hello,
I've been wondering if it's possible to recalibrate how the system reads the remaining battery charge. I'm using Rage 2.8 kernel for FXP and battery life is very good (over 30h with moderate HSDPA youtube streaming, browsing etc.), but what bugs me is that it goes from 100% to 80% extremely fast, then it slows down as it reaches 0%, it can hang on 1% for an hour before it finally shuts down.
I'd like it to be somewhat linear (even if the real physical battery discharge cycle is not linear), is it possible?
Cheers!
Click to expand...
Click to collapse
Depends how you and other apps really use the phone.
I've done idle testing with screen off and no apps, the drain is simply faster at the beginning after charging and later slows down to the point where streaming youtube "eats" less power than idling at 99%. I'm not saying it really does that (because it's impossible), it's just that (I guess) the physical battery discharge curve is like this, but that doesn't really help me at all with estimating how much time I have left.
I may be wrong, but I've tested this twice now (going from 100% to 0%) and it's always faster in the beginning completely regardless of what I'm doing with the phone.
I dont want to **** on the cake but if you care about battery-life you should not use a CM-rom. I used CM-7.2 for 6 months and now switched to a stock-based rom (Spartan). The result is twice the battery-life. CM's battery consumption is horrible especially when the phone is idle. I used to lose 20% during 8h of airplane mode. Now i lose 1-2% without airplane-mode.
Actually, the battery life is just fine for me. I agree, pure CM 7.2.0 drains the battery like there's no tomorrow, but Rage kernel alleviates that by a lot.
The reason I don't use official rom mods is that I like CM a lot, and while battery life could get some more love from the devs it's certainly not that bad, especially with Rage kernel. 30h+ with normal usage, internet, browsing, youtube etc. isn't that bad.
My problem is not that the battery is drained fast, but that the percentage display goes down unevenly regardless of usage. Let's say we compare idle to idle, no airplane mode, no background apps. When the percentage is at 99% it goes down about 5% in an hour (I didn't measure it with a timer, but it's a good estimate), while when the percentage is at 20% it goes down about 1-2% in an hour.
Here s an also weird graph!
Stock Rom .62 rooted.
Check the vertical drops!
h ttp:// img.tapatalk.com/8ded9580-228b-a194.jpg
No problems.Just weird.
Sent from one of my 4 iPads.
Ok, after deleting battery logs after fully charging the phone (although I don't know whether it was this or something else, maybe it just needed three charges) I got a linear discharge curve. Also, now it turns off at 2%.
BTW battery life on CM 7.2.0 - this time (with LAGLESS governor) it got the phone to 59 hours, which I think is really good enough. Rage kernel FTW. Of course, with LAGLESS and stock rom it'd probably reach over 70. Still, I don't need that much, and CM is great.
-- edit --
After another change (switching to 2G when data transmission isn't needed) the phone eats 0.6% battery per hour. Now I really don't need stock.
I'm not really satisfied with battery life of my less than two months old Realme GT 12/256 GB.
What is your average screen on time on this phone?
Mine would be in the 3.5-5 hours range in a day and a half, maybe more if I watch a movie or something.
I'm not playing games and only have Viber, WhatsApp, Facebook... usual stuff.
I didn't see any tanglible difference between "auto" and 60 Hz screen mode regarding battery life.
Also, what percentage of battery drain do you see overnight?
I'm on latest firmware, tried every possible battery saving combination, but always have at least 3% battery drain overnight (usually around 4% in 7-8 hours) and that with radio and all apps off and various battery saving settings applied (global and per app).
I'm starting to believe it's "normal" for this phone and its SD 888 chipset.
Thanks.
Same
I have very similar results as you. Battery life is just ok.
Current battery life:
from 93% to 28% in 1d 19h, SOT: 3h 15min.
Before this I had Poco F3 for a month or so and I don't recall exactly, but it was something like a 1%, 2% max. drain overnight with pretty much the same usage pattern.
Also I have Lenovo tablet with far weaker MTK CPU but not much bigger battery (5000 mAh and 10.3'' screen) and that one almost doesn't use battery in standby mode (beats all phones I had).
I'm currently disabling various apps and testing and I'll post here if I find out something useful.
Optimized standby - Ultra standby makes exactly no difference in my current setup so I turned it off completely.
Quick device connect is also turned off and not in use, as far as I can tell.