yashsingh1/xdaforums huggingface dataset:
[Nexus One General] cpm:
Not quite true. If charging while on, just press the power button and (if on security pattern ) then is shows current power.

Anyhow you're missing the important point here. If you power to "100%" whilst on, then unplug. power off, and plug back in, then you actually get a red charging light, and the battery gets additional charge (~1 hour). This does 2 things:

1) The battery is 100% charged physically to its max (I get 4171mV battery voltage)

2) This Max power limit is then realised by Android

Please, don't dismiss this until you've tried it ;)
[Nexus One General] kindiboy:
Thanks alot :D
[Nexus One General] RogerPodacter:
But I get 4.172 volts at 100% full charge every morning. I wake up for work everyday and check it, take it off the charger and that's my voltage. I've never seen it any higher by charging with the phone off.

Also my battery doesn't drop to 99% immediately like some people. If I unplug and don't use the phone for The first 45 min, it stays at 100%. And then at 1 hour it drops to 99% or so. But if I use the phone it does drop quickly.

I don't understand what bump charging could be doing. I believe all li-ion battery devices have hard coded battery hardware, inside the actual battery, that controls the full charge limits to prevent over charging.

So what could the difference be between on and off charging?
[Nexus One General] mtw4991:
Acutually, that's not quite right as I edited and achieved full charge ratings of 4197mV and 1427mAh using this edited method above. It stayed at 100% for 2.5 hours and 27.5 hours later I still had 30% battery left with a 6 hours overnight sleep. 3g on always, syncing twitter/gmail, lots of reading XDA:p some sms, calls, browsing, etc.

Many don't realize several key points:

1.) With the phone turned on, you can NEVER achieve a full 100% charge as it is constantly discharging.

2.) If you plug the phone in to a charger and the battery is at 89% or higher, it will not charge until the battery drops below 89%.

3.) This bump method tricks the battery into taking the additional mV and topping off, wiping batt stats just give the internal sensors a truer 100% image to recalibrate from.

4.) A couple of folks have noted that the battery is only a 1400 mAh battery, but can hold more energy just like a 12v car battery will hold 12.6v.

Hope that helps;) From my research and my own experience, it has been worth it!
[Nexus One General] mtw4991:
Roger, you probably calibrated your battery correctly somewhere along the line so I'm not surprised you are getting 4172mV. It probably dies (if you let it) at around 1-3% also, not 9-13% like many people phones do. If the extra 20 mV I got it to top off at are worth an extra 2-3 mins. before dying, then yours would die at about 1% like it should. I, like you, don't totally understand the science behind the bump method, but I can attest to the fact that it worked beyond my wildest expectations the second time I tried it. The first time, I didn't follow the instructions EXACTLY as specified such as in step #2...I turned it off, then disconnected it instead of disconnecting and THEN turning it off. Sound stupid, but there MAY be a specific sequence coded in there somewhere that tells the battery to take more juice??? idk.
[Nexus One General] samagon:
Have had the n1 for couple of weeks now and love it. The only thing I don't like is the battery life, but going through this thread and doing the switch to GSM prl and following the recommended battery top off method (charge, off charge, on/off, charge) seems to be working well. Will find out for sure this week. A premature thanks to this thread and xda! !!
[Nexus One General] Tatchan:
How can I check the actual mAh of the battery?
[Nexus One General] stuff:
Any good battery monitoring app should have it.

But you can download OS Monitor and it will tell you
[Nexus One General] EV0LUTION604:
At 19 hrs with 59% battery left. minimal use
[Nexus One General] stuff:
Just installed OS Monitor, and filtered the messages for batt information only.

It says that my battery currently is:

Batt: 100%, 4192mV, 0mA (0 avg), 28.7 C, 1401 mAh.

It seems my battery has the maximum capacity for the charge. I believe I have taken care of him perfectly. :D

BTW, never did I once do this "bump" thing. I just shut off my phone and charged for about an hour after I knew it was at 100%. I disconnected the battery, went into batt stats and wiped the stats. Then turned it off again, charged for like 10 more mins. then powered on and I have 4192mV

Edit: 4192mV is when the battery is still plugged into the a/c current. But when I disconnected and waiting for the next message update from OS Monitor, it said I had 4177mV/1403 mAh.
[Nexus One General] stuff:
I don't know what i did, but my battery is still saying "100%"

Aw. jinxed myself. It just dropped to 99% as I was typing this.

But OSMonitor reads 4143mV and 1345 mAh.

Phone was last plugged in at 3:32pm, and it now is 7:12pm. Almost 4(FOUR) hours of idling, while only sending/receiving 4 txt messages (hardly any) and it only dropped 1 percent.

I'm kind of amazed.
[Nexus One General] cowboyfarmer:
I have a t-mobile Nexus One with FRF91 unrooted. I maybe missing a step, but I can't find the "wipe battery stats" option in the bootloader. Do I need a special bootloader? Any help much appreiciated. Thanks.
[Nexus One General] prettyboy85712:
If you're not rooted and then you cannot wipe battery stats.
[Nexus One General] cowboyfarmer:
Thanks for the quick answer.
[Nexus One General] mtw4991:
FYI, my highest readings that I've seen are 4197mV and 1437mAh. mAh are the real key to longer life I believe as it stands for milliamp hours (estimated available). mV is the amount of charge in millivolts stored in the battery and can be consumed in greater amounts by apps that draw more power. btw, I had a 4143mV reading the other day, but 1427mAh was the reading. It stayed at 100% for over 2.5 hours and died late the next day at 2% :) Glad it worked for you!
[Nexus One General] stuff:
My highest was 4192mV, 1401 mAh. And right now I'm hanging out with 66% battery remaining and it's been "unplugged for 17 hours."

I've sent 20 txt messages. Used about 5 minutes of internet usage. And held a 30 minute conversation.

And my OLED is unchecked automatic, set at a static 40-50% brightness.
[Nexus One General] phoby:
how do i filtered the messages for batt information only. in os monitor
[Nexus One General] shaunm1989:
My seidio 1600mAh battery shows 1502mAh not to bad i guess
[Nexus One General] ram130:
My highest is 1563mAh and 4162mV! I did something a lil different though..:rolleyes:
[Nexus One General] ram130:
now at 4045mV and 1393mAH after 2hours and 9mins. My phone is still at 100%!!! I used the phone for 21mins 34sec(display on time) and made 21mins worth of voice calls for while on 3G and wifi...also alot of emails coming in and out!...

I'm gonna try my new method again if my battery ever dies:D:D

Any one know a side affect or disadvantage of having so much mAH?

Everything is stock btw.
[Nexus One General] karnovaran:
MUUUUCH better life with GSM auto PRL. Thanks.
[Nexus One General] allenlo83:
How's my battery? It was at 60% when screenshot was taken.
[Nexus One General] Mokurex:
You used the phone for 2 hours and it's still at 100%? Doesn't sound right.
[Nexus One General] ram130:
yeppp didn't you see I beat every's one maximum too. Also my phone lasted all day like normal..:D:D...gonna try my new method again today and I'll update yall if I can do it again.
[Nexus One General] Tatchan:
We're all waiting your new method, I only have around 12 to 14 hours of battery life, even OS monitor reports 1437mA at full charge. Today I only use the display around 2hrs and make around 30mins call in 3G, it died around 14hrs
[Nexus One General] mtw4991:
What is this new method...explain pls?
[Nexus One General] stuff:
Something odd happened to me yesterday.

I was at my gf's apartment, and I didn't bring my OEM charger, so I decided to use her HTC Evo 4g's charger. (I assume they are both identical and power the phone the same).

Well, when I plugged it in, I was at 93% battery. About 20 mins later, it actually dropped to 89% battery, and I couldn't understand why. Even the notification light changed from Green to Amber.

I rebooted my phone, and when I did it listed as 100% battery life. So I turned it off again, and let it charge for a good 5-10 minutes.

Then I turned it back on and checked the voltage and amp/hr. It read something huge like 4.2v and 1489mAh. Basically it said it was almost 1500mAh, so I was wondering if it somehow overcharged my batter.

Furthermore, it was last plugged in at 11:10PM (last night). It now is 7:01AM.

8 Hours of idling/overnight, and it is still 100%. I figure it would at least drop 1%. Either I'm getting stunning idle time, and my phone is hardly using any juice, or I just supercharged my battery and it has more ampers than it is supposed to.
[Nexus One General] stuff:
OK I am starting to freak out. I am afraid my battery is going to charge itself to past it's capacity, and blow up or something.

I exported the OSMonitor log, and it's a .html file. So open it with your web browser or notepad or something.

This is the small log I have, but look how much it says it has charged the battery to..

http://upit.cc/files/10536196.html

For now I am going to keep it uncharged and let it drain.
[Nexus One General] ram130:
:D I got 1580mAh today and took some pics.
[Nexus One General] groentenman:
Any news on new methods for this?
[Nexus One General] troongs1:
I'm glad someones figured something out, because since the update, my phone batteries been lasting 3 hours tops. and the battery's been overheating like crazy. I was freakin out thinking my phone was tapped..battery life before was 6 hour talk time or so
[Nexus One General] RrOoSsSsOo:
But with the 3G every on or not? :confused:
[Nexus One General] innisdb:
my battery life seems to be pretty bad on for some reason. had 30 percent after 8 hours of pretty light usage...on CM i would probably be at 50% or so with my usage. im on the .34 kernel that cyan posted in his quick rooter thread...anybody try different kernels to see whats best?
[Nexus One General] Vandam500:
Today I got from 9:30AM to 7:00PM from heavy usage! (Lots of internet browsing, texting, reading comics and facebook). I was on Wifi nearly the whole time though.
[Nexus One General] Vandam500:
That is crazy:eek: My phone shut off after 9 hours and a half.
[Nexus One General] innisdb:
i hate the fact that theres always people getting battery thats 3x longer than mine...idle seems to be good but as soon as i start using it the battery drains crazy fast
[Nexus One General] martin0285:
I'd say I am getting good/better battery life with Froyo.....Heavy, heavy usage today (flash games, hulu, texts calls, sports-tap set to update every one minute for over 3 hours, ect.) and I have 31% left after 16 hours +..... Honestly used my phone today more then I prob have since first day or two I got it.... Much improved batt for me :)
[Nexus One General] xManMythLegend:
Thus far...much better battery life than Cyn 5.6

Only difference is running launcher pro and no pure grid widget.

Ive heard Helix and Pure grid widgets are battery whores..perhaps that is true.
[Nexus One General] OrganizedFellow:
I am using SetCPU version 1.5.4.

All settings by default.

Since I flashed my Nexus, and booted up into Froyo for the first time, it was precisely Aug. 24, 2010 @ 00:02:30 (yes, I am that precise & organized).

So for the past 22.5 hours, I've used my phone extensively today, showing off Froyo to some friends, browsed to Kongregate.com and played a game during my lunch, hit the Market many times to install/update apps backed up by Titanium.

My phone is now at 40% - after 22.5 hours.

Before Froyo, using Cyanogen 4.0.6, similar usage would leave me closer to 10%.

Thanks for BatteryIndicator recommendation.

I was using OverCharged

http://www.cyrket.com/p/android/com.dymsoft.com.overcharged/
[Nexus One General] Daswolven:
Ditto on the ppl who get 20-30 hours, wtf? Anyway, I'm seeing typical life of about 14-17 hours dependant on use, which for me is fairly heavy I think. No real difference from CM or stock. Loving the new features and UI tweaks though. :)

-------------------------------------

Sent via the XDA Tapatalk App
[Nexus One General] jasrups:
I was completely stock prior to unlocking the phone and flashing FroYo.. and I must say I've been experiencing worse battery life.. Haven't been keeping close detail of my usage pattern, just basing off how much battery I used to get.
[Nexus One General] DarkDvr:
Rooted nexus one. Rooted froyo installed.

Same battery life, about 10 hours with heavy use, about 20 hours of light use.
[Nexus One General] chowdarygm:
my battery life seems awesome with the paul's Froyo rom without any mods...

charged on last Sunday and was playing with it heavily(internet, Voip calls on wifi, lot of gaming) and now i am at 23 % still..... i will not want to mod it and i am very happy with the performance.....

out of toppic: i saw 280+ MB free with the stock ROM :eek: without any mods and never saw it go below 100..perfect
[Nexus One General] edesignuk:
Mine seems worse. I've barely used it since taking it off charge 3 1/2 hrs ago. Down to 80% already.
[Nexus One General] vegetaleb:
Paul's rom battery is very weird, I can just loose 2% per hour with fair usage and 15% per hour in standby :eek::eek::eek:
[Nexus One General] noobiex:
My battery went down from fully charged to 60% over the night in standby:(

Is there any way can fix this?
[Nexus One General] DDM123:
Use the battery usage menu under About Phone to figure out what is killing your battery. Disable widgets, live wallpapers, and background processes and see if those are what are killing your battery.

Seems that no matter which kernel or rom I use, it's just a matter of getting rid of battery-hungry processes. I mentioned earlier that my battery died overnight, well last night I lost about 10% on the same setup.
[Nexus One General] britoso:
Suprisingly my battery life has improved.

1)No exchange account (<--- the battery killer)

2)only gmail,contacts sync. No facebook, no Twitter, no other email accounts

3)gtalk running 24/7

4)no wifi, only 2g/3g

5)weather,agenda and battery life widget

30% remaining :)
[Nexus One General] SiNJiN76:
I noticed that in the SetCPU info screen...the CPU speed goes back and forth from 998 to 245 constantly when nothing is 'set'. Is that supposed to happen? :confused: So, put the Min:998 and it stayed consistenly on 998 (duh).

Battery life in my mind is worse...I was thinking it was due to the CPU constantly changing between 998 & 245 (as reported by SetCPU).
[Nexus One General] Rusty!:
Mine is taking a long time to charge this afternoon.

I ran it dead at about 1pm and it's now on 53% after nearly 4 hours of being on the mains.

Odd.
[Nexus One General] Wylker:
I've absolutely noticed the same thing. I feel like there is something in standby that is killing my battery. Through heavy usage over ~ 30 minutes, of talking, downloading new apps, setting up widgets, etc. I went down from 100% to around 92% (-8%). But since then the phone has been in my pocket doing more or less nothing and it's dropped to nearly 60% over 2 hours or so (-30%).

My battery use shows my top 3 users as:

Display - 43% (37 minutes on at lowest setting)

Voice Calls - 26% (8 minutes 23s use)

Email - 8% (6MB sent, 18MB received)

My battery absolutely got wrecked yesterday, if I didn't have my charger at work it would have bottomed out in 6 hours or so. Even plugged in I was only regenerating 4-10% per hour.

Also I'm using the BatteryLife widget, and after having the phone idling and in my pocket for around 20 minutes I pulled it out and the battery temperature was nearly 100 degrees F.

I'm using an Paul's froyo rom unmodded.

It looks like there is SOME kind of battery use issue - like I said my guess is something it is doing in standby.
[Nexus One General] DarkDvr:
You don't nerd setCPU. Android does cpu throttling by itself, and does a good job at it. SetCPU is simply doubling the work and consuming battery even more.
[Nexus One General] DarkDvr:
You don't need setCPU. Android does cpu throttling by itself, and does a good job at it. SetCPU is simply doubling the work and consuming battery even more.
[Nexus One General] noobiex:
"Display" use more 50%++ battery..I have turned off some widgets, will see how long it last now!
[Nexus One General] DarkDvr:
Yep. As a couple of ideas check:

CPU widgets or apps. Don't leave them running.

NewsRob or other news syncs.

Email sync settings. Leave them at PUSH, otherwise they go into the sync loop.

Download OSmonitor, sort by "load", descending. It'll tell you what's using up cpu cycles.
[Nexus One General] Rusty!:
I could understand the slow charge rate if I had piss poor battery life... but I don't.

I was at 18 hours since unplugging, so I know it's not being drained, it was just charging up like an asthmatic snail.
[Nexus One General] itslinx:
I would definitely say it's gotten MUCH worse for me. My N1 will always make it through the day (after using it a decent amount) and have a good amount of battery life left when I go to charge it again before I go to sleep. But last night I had to take it off the charger because the phone felt really hot. So I left it off. Then I charged it when I woke up and it hardly moved. Now i've been charging it for hours (maybe 4-5?) here at work and its moved from like 30% to maybe 50%. It's taking forever to charge.

wtf?
[Nexus One General] Wylker:
Drain update:

Off charge time: 5hr 26 minutes

Charge remaining: 10%

Usage:

Display - 46% - on for 1 hour 3 minutes

Voice Calls - 21% - 12 minutes

Email - 13% - CPU time: 26 minutes - Sent: 18mb - Received: 60mb

Overall it's ridiculous, I need to find a kernel that works better I guess or maybe go back to 2.1 for now

I grabbed OSmonitor, watched loads for a while, nothing spiked on there. I can find no logical explanation.
[Nexus One General] blitz911:
On cm 5.0.6with froyo root and setcpu, battery drains till its dead overnight. Aside from watching flash vids, been using the phone like normal...
[Nexus One General] Cuda1337:
My battery life seems to be a lot worse too. For some reason it seems to drain REALLY fast from 100-90% then pretty fast from 90-70. Once it hits 70 it seems to drain at a normalish rate. Dunno what the deal is.
[Nexus One General] Fking1:
im with the paul's rooted update and i'm also having terrible battery life, it discharges for few hours. Last night it eat about 60% for the night, didnt wake me up cause was dead in the morning... :>

Something really wrong is going on here, hopefully there will be update/solution soon :)
[Nexus One General] frontalot:
I'm having the same problem. I tried disabling every widget and app possible, but my battery still loses at least 5% of its power per hour when completely idle.
[Nexus One General] corneliusm:
You're joking, right?

Setting min CPU to 998 means that it stays at 998 MHz all the time. Dynamically switching clocks increases battery life- nearly all embedded devices do this.

When the CPU drops to 245, it's idling because nothing is using CPU- so Android does this to conserve power and cool off the CPU. Android automatically wakes the CPU up (ie- switches back to 998) when the system needs more CPU. For example, your phone is in your pocket, screen off, but some service wakes up, checks your inbox and then notifies you that you got a message.

You gain nothing by jacking up the min CPU clock- maybe some theoretical faster response time (but you won't notice it). However, you stand to lose a ton of juice, and your phone stays hot, and may end up negatively affecting the longevity of your device.

In summary: don't screw with it.
[Nexus One General] corneliusm:
I have noticed lately that keeping wifi on actually improves battery life. 3G uses more power than wifi, so be sure to keep that on (and disable Wifi Sleep), especially if you have sync turned on.
[Nexus One General] Rusty!:
Strangely, my phone is now charging at it's usual rate. Nothing's changed on it, so it's either a difference in the chargers, or random.
[Nexus One General] Wylker:
could it be a 3g/E thing? like when it's switching bands rapidly it hurts battery discharge and maybe it was sitting in a high RFI area or something before. *stabs in the dark*
[Nexus One General] timothydonohue:
for those of you that are having significant decreases (while mine has been increased), it may very well also be due to the new radio. it works great for me, giving me some signal where i didn't have it at all before, and keeping 3g in more areas.

if your phone is struggling to stay in 3g, or is flipflopping between edge and 3g, it will use more battery than if it has a good signal, because the phone doesn't have to work as hard to maintain a connection.

so....check your signal

i also don't have as many widgets runing right now, which also chew through more battery than not. i've decided i can launch anything i need to open, if i need to see it that badly, rather than just having it go all the time.

i also hardly ever use 'sync'. i don't need to know what is going on on fb or twitter that badly, and my email can wait until i sit down to answer it.
[Nexus One General] behelit:
Froyo with old radio: lost 10-15% overnight

Froyo with new radio: 5% overnight

These were both with no data connection running.
[Nexus One General] ywindlass:
I completely am not sure about this, but..

The official twitter app has moving backgrounds, I disabled mine. I seriously saw a lot better battery life.

After workday with animation: 20%

After workday no animations: 45%

and this is with moderate usage. I'm not too sure how plausible this can be, but it worked for me. :D
[Nexus One General] Vandam500:
Holy snaps:eek: Is it that bad with animations on? *Goes to turn mine's off too*
[Nexus One General] :
I was looking for this thread, lol,

I forgot to plug in my phone last night, and this is what I found today regarding battery on 2.2 with 29% battery left:

And yes, killing animation makes a huge difference in battery life, I noticed that when I first got the phone. It was the first thing I turned off, and I wondered why people were unhappy with battery life.
[Nexus One General] louis.lovato505:
Upgraded to Froyo on Non Rooted N1

My Battery Life is horrid. I don't want to root my phone yet but with Moderate usage I unplugged my phone at 8:30 and by 1:30 I was at 18% battery life. by this time I would atleast have 50 to 60% on 2.1. Im running all the same widgets and everything on 2.2 as i did on 2.1 seems kinda sorry to have to clear out widgets and stuff. Any suggestions to improve my battery life untill the official Froyo build is released by google? I finally turned off animations and my live walpaper to see if it would help any. :mad:

UPDATE: 5/26/10

Charged my phone and came in to work this morning on the way over on a 15 min drive and sending 3 text messages i dropped down to 93%, plugged in my charger right as soon as i booted up my laptop and started listening to music while charging and battery is just stuck at 93% for the last 3 hours lol.
[Nexus One General] t0ol:
lost 15% in 3 hours... with a sleeping phone...

100 to 85 that is.. after that drain rate seems as usual..
[Nexus One General] vegetaleb:
IntersectK is the solution :rolleyes:
[Nexus One General] cherryapple:
Noobquestion: ;)

How can you disable the animations?

As far as I know only the App "Spareparts" have an option like this.

Any way to change it in the default preferences?
[Nexus One General] t0ol:
actualy i am on raven`s latest .34 925 cfs already... =)
[Nexus One General] vegetaleb:
There are rumours that the froyo we are using now is a beta,so if it's true it could explain the battery strange behavior and all the missing stuff that we should had
[Nexus One General] Rusty!:
Dont think it's a beta, but it's 100% not final.