yashsingh1/xdaforums huggingface dataset:
[Nexus One General] hah2110:
Being in your pocket will absolutely kill your battery. The heat from your body combined with the pocket trapping the heat is a recipe for disaster -- especially on the Nexus. I see ENORMOUS differences in vs. out of pocket.

Everyone is looking at this wrong. The Battery Use measures your items that use power relative to everything else. Display using the most battery is a GOOD thing because it means that the SYSTEM and the APPS are using less. It doesn't mean the Display is SUCKING your battery. It simply means that if your phone was idling for an hour and it used X% and you looked at the phone for 90 seconds, display would use MORE battery than the system in standby would (although, we know the N1 has battery issues even in standby). This is OKAY.

+1

+1 - this is normal on the Nexus if you don't have a custom kernel that works in harmony with your phone.

+1

I don't think a new release will help battery.
[Nexus One General] Rusty!:
If the current release has hurt peoples battery life, then why could a finshed, optimised release not improve it again?
[Nexus One General] corneliusm:
+1

Animations, live wallpapers, etc are not part of the "Display", and disabling animations won't decrease the percentage of power the display uses. Display means the actual hardware- the AMOLED screen and touch sensors. Your animated GUI falls under Android System, IIRC, and Live Wallpapers are under its own category. These take very little battery- usually less than 4% each on mine (for the default live wallpapers anyway- some on the marketplace are battery hogs).

Unless you use the phone very lightly and set the brightness level to absolute dimmest, Display should always be the highest percentage.
[Nexus One General] hah2110:
Close... But this may not be true if you have items downloading, a VPN connection open, transferring of files, music playing, tethering, its.
[Nexus One General] corneliusm:
What missing stuff? I have wifi hotspot/tether, ability to move apps to SD, JIT-enabled, smooth launcher, Flash, and Wireless N support. What else did Google promise for Froyo?
[Nexus One General] corneliusm:
Yeah, I meant under normal conditions. Both Wifi tethering and GPS rape my battery faster than the display ever could.
[Nexus One General] Wylker:
Ok todays battery test:

I changed to the latest .34 BFS last night and charged to full. This morning all I've done is check a few emails and send 1 text.

Current time off battery: 2 hours

Current battery charge: 76%

I have disabled wifi, bluetooth, GPS, and have display on low. Data sync is still on. I have all widgets turned off except for google search and batterylife. I have no animations running.

I'm attempting to do as little as possible on the phone today to see how long it goes. It looks like significant drain again, so I'll try CFS tomorrow.
[Nexus One General] :
What services do you have running? Seems like something is polling very frequently. Something like Twitter set to 15 minutes intervals is a huge battery killer.
[Nexus One General] itslinx:
Ok, does anybody know a way to go back to 2.1?

Cause this is ridiculous. I can't use this if the battery is gonna be this horrendous. I'm usually not one to complain.. but it's that bad.. really. It's only been off the charger a few hours and I haven't used it at all.. and it just died. I could take it off the charger at 6AM and use it a decent amount throughout the day and come like 6pm, it would be at least half still (and most of the times well over half).
[Nexus One General] frontalot:
I wiped my phone, reinstalled stock Froyo and nothing else, and I am still losing 5% power per hour. WTF is going on here?
[Nexus One General] Wylker:
I have uninstalled all apps, the only services I see are:

BatteryLife

SyncManager

Google Messaging Service

Andriod keyboard

Voice Search
[Nexus One General] JHaste:
I will not lie, my battery is horrendous on Froyo... 2 hours of "use" and i am at 92%...

by use i mean i think i typed like 10 text messages and THATS IT! screen is at low brightness and has been on for a total of 6min and 20 seconds according to my phone... and apparently 33% of my battery use is the display... figure that one out...

I have always had this problem with CM5 but never with enom's roms... enom's i get MUCH lower display battery use...
[Nexus One General] t0ol:
did the same test today.

unplugged at 6 am at 100%, went back to sleep. at 9.30 battery was 85%.

After that things got better, now @ 23.03 im still at 52%.. been using wifi edge bluetooth all day.

so i guess it`s some problem with battery calibration, it shows fast drain from 100 to ~80 and then slows down alot..
[Nexus One General] antoniouslj:
to those who are having issues with battery life...

i was in the same exact boat right after i flashed froyo... when idling, my phone would burn through 10%/hour... you can imagine what would happen when i actually did something with it.

i figured out it was my preferred network type setting... (the one that needs the *#*#4636#*#* code). i had it set for WCDMA Preferred. when i changed it to GSM auto (PRL), it gave me a huge improvement on battery life. I think there's some underlying code in froyo that affects this setting...

you all may want to double check to see what yours is set to.
[Nexus One General] zer0day:
Have you checked the Battery Use screen? Check what's using up most battery there. According to my device stats, I unplugged it from the charger 16 hours ago and now I'm at 54% with medium use. The thing that took most battery is the Display (29%) followed by Voice Calls (27%) and Cell Standby (17%). My network type is WCDMA preferred.
[Nexus One General] Fking1:
i read about that in some other thread, but i set it to WCDMA only and it seems to be better now

still gotta do more testing and still im not sure if it was because of that cause i claened some widgets and apps as well

but that's definitely something i would invite people to try and let us know :)
[Nexus One General] antoniouslj:
when was the last time you tried gsm auto (prl)? if it was before froyo, i urge you to try it again... ;)
[Nexus One General] Fking1:
im not even sure what is that :)
[Nexus One General] antoniouslj:
go to your dialer and enter *#*#4636#*#*, then go to phone info

scroll down to "Set preferred network type:" and set it to "GSM auto (PRL)"

this setting basically uses a preselected tower and provider list to choose which tower to connect to, instead of constantly pinging the surrounding towers for the strongest signal.

you'll still get 3G with gsm auto, but it uses much less battery life cause it uses a predefined list of towers to connect to. basically it knows what to connect to based on your current location and proximity to the towers.
[Nexus One General] Fking1:
ok switched to this one, thanks! :)

and what does "WCDMA only" do then?
[Nexus One General] antoniouslj:
http://xdaforums.com/showthread.php?t=682662
[Nexus One General] supadupa111:
I am getting better battery with stock froyo. I was down to 15% with about 32 hrs from my type of usage (note: data turned off over night (~6 hrs)). When I was using setcpu with stock, I was down to 15% after 17.5hrs. With screen on it runs @ 245-998 + sleep profile @ 245-384.
[Nexus One General] antoniouslj:
i had issues with setcpu in froyo... i think there's another "under the hood" change that's affecting it.
[Nexus One General] itslinx:
I'm gonna try that. Cause my battery has been RIDICULOUS since doing the manual 2.2 update..
[Nexus One General] JHaste:
How is much display is everyone's phone using? I swear I have had my screen on for a little over an hour and its over 60% of my use and I am at 45% after pulling the thing off the charger at around 11am...
[Nexus One General] hah2110:
I have explained this in tons of threads... you WANT your screen to have the highest power consumption.
[Nexus One General] lgkahn:
i had problems with the froyo radio.. i am in a weak signal error and was getting

like 10-20% per hour gone when doing nothing..

I confirmed it was the radio by going into quick settings and seeing that cell standby was sucking up all the usage..

anyway didnt get better when going back to cyanogen but then eventually realized that flashing back the f/w didnt reflash the radio i was still on 4.06.. went back to 4.04 radio and now i am fine..

so there is something with the froyo radio in poor signal errors like mine (i cannot get a good data connection not reliably even with edge unless conditions are good).. off course this is a bug/design flaw in the n1 radio hardware.. my i8910 symbian phone works reliably on edge all the time at home and even sometimes with 3g depending on conditions.

anyway that is neither her nor there.. that is 1 reason i went back to cyanogen the radio and also becuse of my poor reception i like the 360 degree rotation so i can turn the damn phone over/upside down to get better signal. Maybe i should have tried the froyo radio longer with the wcdma vs prl etc. setting.. but was getting too pissed at having a battery last 8 hours.
[Nexus One General] RogerPodacter:
Exactly. That seems exactly where its supposed to be to me. 65% for display is exactly where it should be.
[Nexus One General] JHaste:
please link a thread...

when i was on enoms my display was always in like 3rd or 4th and i definitely had better battery life with a higher amount of use as well... this is why it is just blowing my mind and it wasnt the radio either, i had just as poor of battery life on cm5 regardless what my radio was...
[Nexus One General] Rusty!:
Tap cell standby and see what your time without signal is. The longer it's without signal, the more it will drain the battery searching for one.

After 20 hours, mine is on 0% which is quite awesome.
[Nexus One General] zodiacfever:
email

i have had some serious issues with battery as well.

and i have traced it all back to the email app that i have set up for exchange. my phone sometimes got hot to the touch on standby, and when looking in system info, it used alot of CPU time. And it would completely drain the battery in not time.

i set up the email app to check every hour, and i disabled calendar and contact sync (though at soem point i was also syncing contacts and calendar, so that might have been the issue, i am testing this right now).

its very clear to me that this is the cause of MY battery issues at least, because when i remove the email account, everything is running great. And i mean GREAT! i love froyo!
[Nexus One General] Fking1:
hm i dont have time without signal info there?
[Nexus One General] Rusty!:
Odd, should look like this:
[Nexus One General] Fking1:
exactly the same, but i dont have the last row :)

im with stock rom, you?
[Nexus One General] Rusty!:
Yep, totally stock.

How odd, mine's had that from release, back on ERD79.
[Nexus One General] Fking1:
yeah really odd

im on just about 2 hors of time on, hopefully it will appear later, huh? :)

ill keep an eye on that

but about the topic, it seems that im losing just about 2% per hour now, once ive set it to GSM PRL

that's with barely using the phone, and observations for just 2 hours so far

but looks promising
[Nexus One General] Rusty!:
Perhaps it needs longer than 2 hours to build up a percentage? Don't shut it down for a good while as we shall see :)
[Nexus One General] jettrue:
Maybe it's because you keep turning your display on to look at what is using your battery the most. :D

The thing about the batter percentage page... It's not telling you HOW MUCH battery a process is using, it's telling you how much percentage of the battery a process is using RELATIVE to every other process. I too agree that you should be happy that the display is using the most, but you say that your battery is lasting for less time, so that is an issue.

The percentage page really isn't all that helpful, unless one thing is really off kilter. I've got to stop looking at it and obsessing. My battery gets me through the day with no charging (lasted 17 hours yesterday with moderate to light usage), and if I need to charge, I have a charger at work, at home, and in my car. I really have to stop obsessing and turn back on the widgets I want to use. :cool:

I've just got to accept that my issue is that I work at a large hospital/university complex, and there are a lot of dead zones. I spend half my day in standby... and that is sucking my battery dry. I lose about 4% an hour. But I don't want to use airplane mode, cause my daughter and husband text me through the day, and they pop in when I hit signal. If only sms worked through WiFi. The place is loaded with WiFi.

SO I've decided I'll just live with it and go on with my life. Also, I wonder if it could be a bit of a battery issue... not all are created equal... and maybe those with 40 hours just got great ones.

I'm hoping Ultimate Juice Defender gets updated for Froyo soon, that really helped my battery before.
[Nexus One General] jettrue:
Are you actually touching the cell standby section to get to the next page so you can see what your signal is? Every percentage section has more info if you tap on it. I didn't realize that at first. ;)
[Nexus One General] Fking1:
yup, of course :)

do you have that % and after how many hours of up time?
[Nexus One General] jettrue:
Yes, I have it just like the screenshot. Weird!
[Nexus One General] Fking1:
yeah definitely

on how many hours up time you are?

maybe it shows later?
[Nexus One General] wmm:
FWIW, I'm at 2h 7m 11s, and my status for "Cell standby" has a "Time without a signal" line (82% in my case).
[Nexus One General] Fking1:
hm maybe my network here in Europe, doesnt support that in some way, huh
[Nexus One General] Rusty!:
82% without a signal? Are you underground or something?

Don't see how, it's the phone's record of what's going on.
[Nexus One General] deenn:
i'm in belgium and don't have it either. instead of "battery use details" it also says my uptime.

in the froyo update i noticed that my e-mail and fb app had their update intervals switched to 15 mins, gmail wasn't altered however.
[Nexus One General] wmm:
No. I don't know why the inside of my house is such a dead zone -- I get pretty good signal strength outside, and the house is just ordinary wood-frame construction. It's just just the Nexus One and T-Mobile, either; I had the same experience with my previous phone (HTC Fuze) and AT&T.
[Nexus One General] hah2110:
My battery is abysmal on Froyo, unless I use a 2.6.33 kernel which isn't compatible with video recording.... ARGH
[Nexus One General] maedox:
I have great battery life. I was using CM 5.0.6 with kmobs 925mV kernel and battery life seems to have gotten better with Froyo.

I installed Paul's Froyo w/radio over CM 5.0.6 without wiping. Today I'm at 21 % battery and 2d 40m since unplugged. Awesome. I didn't use it very much, but I'd say my usage is about the same as always. Using the default Froyo kernel, and I have not done any radio tweaks etc.

- A few phone calls

- A few SMS

- Talk always connected, and receiving messages constantly through the day.

- Syncing 50-100 tweets every hour

- Syncing two Gmail accounts, calendar, contacts - the works.

- Syncing weather

- SetCPU disabled

- WaveSecure running

- Latitude (Google Maps) running every hour

- Using Home++ home replacement.

Last but not least, my Wi-fi is always on - Not turned off with the screen that is, and not turned off at night. I have great wi-fi at home, and good at work - both WPA2. Mobile network coverage at home is not very good, but it's very good at work.

Oh, and I'm not using a task manager, auto-killer or something like that. I have Astro installed, and use that it something acts up.

I'll supply screenshots or video if you don't believe me. :)
[Nexus One General] S_Dot:
That means you're using Stock Kernel
[Nexus One General] maedox:
Yes, that's what I said; "Using the default Froyo kernel".
[Nexus One General] hebetude:
Kernel: 2.6.34-00716-f00f0be44

Battery was at 88%, I had not used it for anything in this time period. Sensorly Map Viewer turns on the display while it is scanning

While last unplugged for 1h 20m 6s

Email 29%

Android 23% (High b/c of email app)

Display 23%

Sensorly Map Viewer 8%

Others <5%

This is awful battery life. I turned off Juice Defender because it is still bugging out and not reconnecting to data after the screen comes on, but with it on I can easily go a day of no usage and not lose this much battery life.
[Nexus One General] jettrue:
That's insane! Stock battery?
[Nexus One General] big_adventure:
What you posted is missing a crucial piece of data : How much battery did it have when you actually unplugged? If you unplugged at 93%, and arrived at 88% after 1h20min, that sounds pretty good.

You know that the numbers in Battery Usage will always add up to 100%, right? Even if it is just for 5 minutes. It doesn't mean that you used up 100% of your battery.
[Nexus One General] Wylker:
Well, I switched back to ERE27, ERE27 radio, and BFS 33.4 925 and have seen dramatic improvements in battery compared to froyo. Currently with 2.5 hours since unplugged (from 100%) and down to 84%. yesterday by this time I was closer to 70%. Looks like my phone is going to be difficult, I'll probably have to wait for the official froyo so I can yell at official devs if I continue to have issues.
[Nexus One General] maedox:
I know, right? And yes, stock battery.
[Nexus One General] Fking1:
12 hours since unplugged and I'm on 73%, yahooooo!

That's with

- 9 min of phone calls (yeah not a lot of people want to speak with me :> )

- 52 min display on

wifi was on all the time + syncing

Since i did this GSM PRL switch my battery is like iron now! o yeah finally an usable phone! :)

so everything is in the radio guys, those reporting high battery life are just lucky to live at a place with good constantly good signal
[Nexus One General] :
You're basically in 2g mode the entire day because of your wifi. It's no surprise you're not eating your battery.
[Nexus One General] Fking1:
Wifi in general consumes more power, but does stuff much faster, and since it isnt sucking power when there is no transfer, in real world it's supposed to be more energy efficient than 3G
[Nexus One General] S_Dot:
Not true....
[Nexus One General] Fking1:
would you care to argument or we are just talking out of the blue here?
[Nexus One General] jettrue:
Perhaps it's not showing up because you don't have any time without signal? I just checked my phone after rebooting at home 2 hours ago, and it just shows my uptime, no percentage with no signal.... because I always have signal at home.
[Nexus One General] :
The wifi on new phones consume very little power.
[Nexus One General] itslinx:
My battery has been a lot better the past 2 days.
[Nexus One General] antoniouslj:
wifi consumes less power strictly on standby, since it sleeps with little to no power usage. 3G and Edge don't standby without power usage...
[Nexus One General] Fking1:
well since this morning i have it, and i dunno how it appeared :)

I thought that as well, but the time without a signal is 0%

I'm over 20hours since unplugged now, maybe it waits some good hours before showing that
[Nexus One General] vegetaleb:
I don't know if it's because Lockbot is running 90% of the time that the battery is so catastrophic but I scored 3 days with 2.1 + Intersect kernel while Froyo can barely reach 20 hours
[Nexus One General] Fking1:
i made it, 24 hours and 51% battery left, now from one with the worst battery life around here i'm from one of the few guys who are able to pull out up to 2 days from their nexus babies.

And all of that because of that GSM PRL settings! Thank you so much for that tip! :)
[Nexus One General] mooselander:
I also recently switched to GSM PRL and so far my battery life has been outstanding.

I could not be more pleased.
[Nexus One General] vegetaleb:
It was on GSM only before?
[Nexus One General] MagicXB:
Well after doing some testing on Froyo, so far I've made it over 32 hours unplugged and am currently at 38% battery life. This also includes some usage of Foursquare, constant updating of Twitter (Touiteur set to every 30 minutes), notifications on Babbler (a great Facebook Android client), a few widgets on the home screens (Touiteur, Power Manager, bTunes Media Player, Weather and clock widget with Sense UI style), a few phone calls, and quite a few text messages. Also, automatic syncing is on for GMail, Google Voice, and Facebook. Also, the display is set to automatic brightness.

Current battery usage:

Cell Standby 23%

Phone idle 21%

Display 18%

Android system 9%

Touiteur 7%

LockBot Pro (for waking up via trackball) 6%

Weather & Toggle Widgets 4%

Android OS 4%

Voice calls 4%

Launcher 3%
[Nexus One General] halorin:
Stock battery? What kernel?
[Nexus One General] MagicXB:
I'm on the stock battery the phone came with and on the stock Froyo kernel. I'm also on the new radio that the update came with (4.06).
[Nexus One General] halorin:
What blows my mind is that by far and away my biggest battery drain according to the Battery Use is Display. Yours is only 18%.
[Nexus One General] :
Pretty much means he's not using the phone...at all.
[Nexus One General] MagicXB:
You would be wrong there. I've used the phone at the very least a moderate amount. I'm not constantly checking tweets though as it notifies me when I have a new mention or direct message.
[Nexus One General] pfmiller:
When you click on Display for more information, what is your Time On counter at?
[Nexus One General] MagicXB:
Current time stands at roughly 2 hours and 6 minutes. Also, for the last bit of helpful info I can think of, I use SetCPU to downgrade my max CPU speed to 768 MHz to further save on battery life.
[Nexus One General] pjcforpres:
I have a feeling you are like me, you use the power button to turn the screen off right away, and mostly use the phone for phone calls, sms/IM/emails/updates... some surfing, but limited since you always have a computer nearby to surf the web with.
[Nexus One General] MagicXB:
I'd say that's pretty accurate. Most of the web surfing I do is if I'm strictly away from the computer at home, and most of the time I use Google to do searches (with voice input).
[Nexus One General] xXJay_RXx:
guys is it bad if my display is all the way up to 81%?! :eek:
[Nexus One General] :
No it means you use your phone.
[Nexus One General] ram130:
3G on? if so do you have WCDMA only on?
[Nexus One General] vegetaleb:
Anyone has the Froyo stock kernel? I tried inersekt's one but it drains even more battery :eek:
[Nexus One General] ram130:
Yea I do...my batter is actually better now with Froyo..getting 20 hours with moderate usage today.
[Nexus One General] vegetaleb:
I meant if you can upload it here ;)
[Nexus One General] pjcforpres:
Just remove the zImage from your FroYo .zip file, and the .ko WiFi module from the... somewhere (can't recall off top of my head this morning, quick google will tell you), then fastboot flash the zImage, boot into recovery, adb push the .ko WiFi module file. Good to go!
[Nexus One General] vegetaleb:
There is no zImage in the Froyo Paul Rom!

Only the .ko file

I used the GPS today...it was awfull! It loosed 30% in one hour! :eek:

Before Froyo 1h GPS was 18%
[Nexus One General] pjcforpres:
You can also flash Modaco's radio free FroYo build, and that will take you back to the stock FroYo kernel, and won't change anything at all (unless you themed).

Also, FWIW, GPS is usually affected by the Radio more so than the kernel.
[Nexus One General] k2bk2b:
GPS and surfing on gprs/3g/hsdpa is a definate battery drainer.

But im seeing a huge improvement over previous roms (emo,cm,A22 and so on with uv) without uv on 2.2

But battery is not stable. Occasionally i get bigger drops. am trying to maintain usage and see which app or usage could be causing it.
[Nexus One General] JoshHart:
Ive used 79% in 4.5 hours of constant use with wifi on this morning. Running Froyo with @Kmobs UV .34 kernel, not terrible life for what ive been doing actually.
[Nexus One General] xXJay_RXx:
guys i got intersectravens cfs 925mv .34 kernel and my battery life doesn't seem any better. i have unplugged my device at 12.31pm n its now 3:55 and its at 33%. any kernel you guys would suggest? i thought this one would work great for froyo