yashsingh1/xdaforums huggingface dataset:
[Captivate Android Development] mark72501:
Isn't there a brightness setting in the browser that is independent of what brightness setting on the phone? I believe it works if you have your phone brightness set to anything other than auto. In browser click menu then look for brightness...
[Captivate Android Development] juheimbu:
Once more this morning, only this time, the phone wasn't plugged in. I snoozed it after the alarm went off the first time, noticed that it had no signal, but didn't reboot because I wanted the snoozed alarm to go off again, which it didn't do, so that I was instead awakened by my frustrated wife asking if I knew what time it was. When I looked at the phone again, it had a strong signal, and I assumed it had rebooted on its own. But, uptime says otherwise.

So I'm no longer inclined to attribute this to a long charge, since the phone had been unplugged for most of 6 hours. At the same time, I was asleep, so I don't know with certainty when the phone lost signal. But, I do know that I've never seen the signal drop during the middle of the day, and have only noticed it missing whan attending to the alarm clock function in the morning.

I'd also like to say that the frequency of this event has decreased with 10.1, this being the first time I've seen it since I flashed last week.
[Captivate Android Development] Neowind:
there must be some serious problem with perception 10 and 10.1

mine cannot go over 13 hours, although i don't use it very much.

gotta back to perception 9.5
[Captivate Android Development] bmuellercinci:
Apparently the "non-existant" battery drain issue apparently has two different possible causes. 1. Cell Standby or 2. WiFi.

There is a good thread about how the perception ROM is not turning off WiFi when it is asleep or does not have a connection, waking up to check if a connection is available every so often. There is a post in this thread about that same issue on some of the newer ROMs that use 2.2.1. Last night I did one last full charge so I could see what the usage was this morning as a baseline before I flash back to Cog. I unplugged it when I got up and immediately turned off my screen. After I got to work - alsmost exactly 1 hour later I plugged it in and went to look at the stats. Battery had drainded from 100% to 91% in 1 hour. (58minutes 47 seconds to be exact)

My stats were: (from the test menu)

Run 58.5%

Screen: 2.4%

Wifi: 100%

Wifi Running: 100%

Now, I know I didn't have a wifi connection for the whole time. I did at home and I did at work but not during the drive.

From the phone battery stats menu.

Wifi: 46%

Cell Standby: 42%

Display: 7%

Phone Idle: 5%

Saturday my phone didn't make it until the evening without running out of battery. Maybe 9 hours after I took it off the charger it literally died (I remember I was in the last quarter of the Saints Seahawks game and I went to lookup the score from the UC Villanova game and it was dead.)

Now that I have a baseline I will be flashing back to Cog tonight now that I have a baseline to compare to that is pretty solid.
[Captivate Android Development] RaptorOne3:
Well after much consideration and experimentation with the Perception 10.1 ROM I've decided to flash back to Cognition 2.3b8...

The reasons -

1. Buttons don't light up when the screen is tapped/touched.

(This turned out to be the deal breaker for me. I thought I could just deal with it but I can't. It's too frustrating in low light conditions. Hopefully an update with a fix comes around...)

2. After seeing all the complaints about battery consumption issues, while I did not experience the same results, I've decided that I'd rather not have my phone die on me unexpectedly while out and about... There are far too many people highlighting the unexplainable battery consumption issue and I don't want to be one of them...

3. Cognition boot up screen looks FAR better than Perceptions, IMO.

Cognition seems to be slightly better all around, in terms of stability and functionality... Overall speed and "newness" obviously goes to Perception, without question. But I think Perception still needs a little tweaking.

If only there was a way to blend these two ROMs together; It may actually form the PERFECT ROM!
[Captivate Android Development] jhernand1102:
For #1 use keep the lights on in the market. It works great.

For #2 No issues with battery for me when I ran this ROM

For #3 you can replace the boot up screen to whatever you want.
[Captivate Android Development] oldbbman:
+ 1 on all three!
[Captivate Android Development] demonte21:
I'm using JL2 Modem with Speedmod Kernel on Perception 10.1

Here is my battery Use so far:

3h25 Of Screen Time

15 minutes of Voice Call

5 minutes of Skype Call

Couple of SMS

30 minutes of Tower Defense!

Couple App install...

Battery Usage seems great to me.

see below.

** EDIT **

Small Detail: I'm using a 3000 mAh Battery ;-)
[Captivate Android Development] dc41:
Wifi and battery drain solved with Tasker

I too was getting horrible battery life with 10.1. After reading some of the posts in this thread, I decided to make SURE wifi was turning off when the screen was off but used Tasker instead of just the system setting. Boom! Went all day with moderate use and still had 75% left.

As far as I'm concerned, Android isn't complete without Tasker. I've got at least 10-12 profiles active and can't imagine my phone without it. Google should pay the developer $10 million and add it to 2.3/3.0!

I highly recommend it.

HTH
[Captivate Android Development] clown_luv:
So any JPY theme will not soft brick the phone correct ??? Will stuff ib the I9000 forum work as long as jpy??
[Captivate Android Development] me_is_rushin:
Does anyone know why the web browser only allows you to open 4 windows in Perception 10.1?
[Captivate Android Development] switters1:
Perception 9,10,10.1 battery was killing me. My phone seemed to zero out in the middle of the day without much usage.

I tried every recalibration trick in the book, and even waited several days hoping the battery would just fix itself (as some people on this thread have recommended)

I finally flashed the speedmod kernel on top of 10.1 after reading some impressive accounts in that thread. My battery is much better and can last the day when I need it to. Maybe this is simply because it displays battery more accurately or maybe it's actually using less power, or a combination of both. Either way, it works for me.

I know some people are getting phenomenal battery life with Perception. I can't explain why my experience on a captivate is different from somebody else's, but given the huge variability of gps, I'm not surprised other aspects of the phone vary as well.

Speedmod seems slightly slower at times than Perceptions firebird, but it's a trade-off I'm willing to take at this point.

If your situation sounds similar to mine, you might want to consider flashing speedmod.

I know a lot of people
[Captivate Android Development] switters1:
I don't know how people use the default browser.

I use xScope and I can open as many background tabs as I want. Sometimes I use Dolphin mini but it's new and they're still working out some bugs/basic features.

So far xScope is the best I've found.
[Captivate Android Development] froli13:
Dolphin Browser Mini is perfect for me. Loads pages faster and doesn't have useless features that slows down the app.
[Captivate Android Development] bmuellercinci:
Hey, that's great - it seems to follow with what I am seeing somewhat. I believe that the problem is on the older ROM I was using it was turning off wifi at some points automatically - built in - nothing I had to do. I will flash Cog tonight back to what I had an confirm that the battery usage issue is fixed. It should be possible to get the ROM to handle this.
[Captivate Android Development] sremick:
Well, normally the stock browser isn't limited to 4 tabs, so that's not a fair reason. :)

I've tried stock, Opera Mini, Dolphin and the latest Firefox beta, and I use the stock browser for the speed of its UI. The others have some nice added features, but they're too sluggish for how I work. I keep them all installed though to keep tabs on their progress/improvement.
[Captivate Android Development] JoelParke:
Does anyone know of a good logging app that I could use to track down battery usage issues?
[Captivate Android Development] ttrinh77:
turning the phone off

I'm trying to just turn my captivate phone off to try to bump charge the battery but its not letting me.

When i hold the battery button and choose "power off"... it does the normal turn off procedure except when the screen goes blank, it hangs for a while.

After about a minute or so, the phone vibrates, (as if something is force closing) and then reboots.

If I try to unplug the battery, put it in, then attach the charger, it turns on the phone.

I want to be able to charge the phone with it being off.

Does this happen to anybody else?
[Captivate Android Development] geokilla:
*#*#4636#*#* is pretty good imo.
[Captivate Android Development] Johnston212:
Just curious, but is anybody able to use BT voice dial/commands on this ROM? Also, GPS is working correct?
[Captivate Android Development] biggem001:
my battery life is AMAZING now.

was on 10.0.6

charged to 100%

flashed 10.1

charged to 100% again (was down a few percent)

wiped battery memory

charged again to 100% (was down 2%)

now my battery life is amazing. down 19% in 7 hours with moderate phone and data use.

-oh! i also have glitterballs kernel, no undervolt, and im using the telus modem
[Captivate Android Development] :
For us newbies, how can I get your setup? Do I just flash Perception 10.1 and I'm done? I want good battery life. How did you wipe battery memory? What does that even mean?
[Captivate Android Development] biggem001:
no problem. this is exactly what i did:

1. Have the files below on SD-Card to be quick

a. telus modem

b. Perception 10.1

c. update.zip for CWM

2. Download glitterball's kernel: kernel check the top, its only ODIN-flashable

3. charge phone to 100% full

4. wipe to 2.1 stock

5. install perception 10.1 through CWM

6. allow it to fully boot, then charge till 100%

7. flash modem and odin the new kernel

8. allow to reboot, and make sure its at 100% again

9. reboot into CWB and wipe batter stats then charge to 100% for the final time

thats it. thats exactly what i did and now i'm getting great results.

make sure you use the kernel link AT THE TOP, the ones in the download links at the bottom aren't the one i am using.
[Captivate Android Development] Johnston212:
Does it have to be CWM? I'm following the instructions on this youtube line:

http://www.youtube.com/watch?v=MsafJ-9uRqk

They are from MobileTechVideos. Watched it before, but can't remember if it refernces CWM.
[Captivate Android Development] biggem001:
flash the rom using any method you like.

use the kernel's cwm to flash the modem and to wipe the battery stats
[Captivate Android Development] timmytim:
This is exactly what happened to me. I reflashed Perception 10.1 2 days ago for the third time. I was fully charged, hell I even had it plugged into the charger the entire time I flashed it.

The battery life was awesome! I left wifi and GPS on all day/night. I went to bed with the batt. was at 91%, left it off the charger all night and when I woke up, it was at 89%. I thought YES! it's working. Then last night and today the battery life has been dropping terribly, about 10% per hour with no usage at all.

I didn't make any changes to the phone. I didn't install any new apps. I just used it to make a few calls and send some text messages, and played Alchemy (FANTASTIC game by the way :)

Today I flashed the phone with the SpeedMod K12K-500Hz kernel, and there is no change in battery life, it's still a turd.

I am going to try to the Jl2 modem and see if that makes any difference. Don't know if it will but others have that combo of kernel and modem on this ROM and have had success.

DG wrote a few pages back there is no battery issue with this ROM, but I respectfully beg to differ. All of these people claiming to have battery issues cannot be wrong, especially when they did not have battery issues while using other ROMS.

(BTW DG....... We've never met or spoke, but thank you for your hard work. I will buy you the biggest beer in the world if you can figure out this battery issue that dozens of us loyal fans are having.) :D
[Captivate Android Development] skatcat31:
Something I noticed about battery issues is many people never let the phone fully discharge three times to set up proper battery stats. They also let it over charge and damage the battery. My phone gets 60+ hours and I've only set wifi to sleep when phone is off. So I can't understand where the problems are coming from. I also have over 230 elements in tibu that are user apps
[Captivate Android Development] skatcat31:
We need to have the developers identify cap or i9k.
[Captivate Android Development] kppanic:
Your issue with the batteries.. Are you actually running them to 0% until your phone shuts off? Or are you just seeing the battery deplete? You should be more concerned with the number of hours you can actually use the phone vice the "percentage" decrease you see.

Make sure before you assume that the ROM is somehow mysteriously draining the batteries, you actually measure the time it takes from full wall charge to complete depletion. You may be pleasantly surprised.

Most of the "battery drain" problem posts start like this -

"my batteries were from 99% to 92% on moderate usage for 9 hours then suddenly it drains 12% an hour." And then "i can't believe how fast the batteries drain on this ROM." Unless you drive it to the ground 0% you will never know how long your batteries will last.
[Captivate Android Development] timmytim:
Yes, I ran it to a 0 charge 2 times, both times on fresh flashes of this ROM. The first time I got about 8 hours of light use before the phone died completely, and on the second one I about 4.5 hours of heavy use......both were tests. I also tried the bump charge and battery stat reset tricks (which I believe are crap and will resolve by themselves with time).

So before YOU assume that I'm blaming the ROM....I am not. Actually, I am thinking now that some Captivate owners may actually have hardware that differs from other Captivate owners. It may not be completely different, but rather different versions of the hardware. I don't know I'm not a dev or phone hardware manufacturer.

As far as the mysterious drainging that can't be explained....what are your thoughts on my original posts first paragraph? It work perfect for one day, then started draining with no apparent cause. That seems mysterious to me.
[Captivate Android Development] RaptorOne3:
WOW man... Thanks a billion times over. I was completely unaware of that app. lol...

Do you know how long I've been frustrated by those lights not staying on????? Too long!

Hmm...

My situation has changed. I will be flashing to Perception 10.1 immediately. If I incur any battery issues I will address that issue as it comes...
[Captivate Android Development] varunkumars:
Battery drain

Guyz some one please help me.. My battery is draining @12% an hour. Please help me fix this. It was ok with my previous ROM( I am sure its not battery problem). What do i need to do.

Mass memory connection is very buggy, i can see the Memory but cannot make any transfer. I see MTP screen on the phone.

Every thing was fine with froyo before. I just installed this yesterday. I did Master clear before installing the ROM but still the error !!!!

I actually charge my battery with battery charger(I take battery out of the phone and charge it with the charger). I am sure Charge Vs use is very high now. I am not blaming the ROM, sure some mistake i did. Someone please help me.
[Captivate Android Development] paracutin:
I don't believe you can over charge these batteries. They all have over charging protection built into the battery. Further, Seidio recommends that you charge their batteries for 90 minutes after the indicator says it's full.
[Captivate Android Development] ryboto:
Well, at least I'm not the only one! I think the issue is related to two things, at least in my case. It seems like the wifi is never turning off. When I lock the screen, and wake it up, I immediately have wifi signal, vs previously the wifi would come back after a few seconds waking up. I had the phone in airplane mode(almost zero signal at work) with wifi enabled for the first 6 hours of my day, and the battery drained to around 45% with some light use(checking email occasionally). After that I shut the wifi off when I wasn't using it, and whenever I'd check email for the next 6-7 hours I enabled wifi for just that session. My battery meter is sitting at 37%.

Here's my new problem, if anyone can help. I went to flash a different theme, currently I'm using Gingermix v3, and when I selected install zip from sdcard, I just get a black screen with the white CWM voodoo text at the bottom. It never loads the root directory. I'm forced to remove the battery to reboot. Then, when I rebooted, I tried browsing the phone with ES file explorer, and it just sits at a black screen. I have to end the program in the task manager. "My files" does the same thing. Oddly, the Gallery and music player work fine. So, programs can access files, I just can't browse the phone anymore...
[Captivate Android Development] Infiniti350GT:
I have never had a battery issue with this phone. Normally I got 2 or 3 days of one single charge. Same when I was running Perception10. I updated to 10.1 and sure enough after a day or two it started getting worse and worse, not better like I thought it would. I just flashed the SpeedMod kernel and JL3 modem to test & see how we do there.
[Captivate Android Development] Johnston212:
Actually you can. I once charged my Captivate with a different charging base and the battery was hot through the body glove sleeve i have. The included chargning base seems to be a smart charger.

BTW, any of you ever run into problems with TiBu after you rooted? It doesn't show any apps under Backup All User Apps + System Data.
[Captivate Android Development] v1rtu0s1ty:
just an fyi. USB tethering doesn't work. I waited for 5 minutes and phone didn't acquire any ip address. Glad I still had my Perc 9.5 zip file on the sd card. While I was on the train, I was flashing. LOL.

I'm back to 9.5 now and this is being posted while I'm in the train.
[Captivate Android Development] Johnston212:
Tethering doesn't bother me. I've got PdaNet for that. Does the wifi hotspotting work?
[Captivate Android Development] v1rtu0s1ty:
Haven't tried. Once I get home, I'll try it. I don't want to do it here inside the train. Oh, I forgot, I'm already in 9.5. MobileAP works with this version.
[Captivate Android Development] kppanic:
8 hours on light use and 4.5 hours on heavy use. Now only you will know what light and heavy are and hence this becomes more of a qualitative measure rather than a qualitative one. I am not saying that you measured it wrong but there are far too many variables in here.

On a light use I get about on average 30 hours before the phone shuts itself off by on a heavy usage it only lasts about 3. I never turn bluetooth or wifi off and the GPS toggle stays on all the time.

I have noticed that in the biggest battery drain scenarios data is always involved. For example, if I have internet radio streaming while the screen is off I get about 3 hours... However on the battery usage screen I will always se the primary factor bring the display, although I had it off for the most time which leads me to thinking that battery usage report is not working properly, which means that the battery prediction is also very off.
[Captivate Android Development] Johnston212:
Thanks. This is going to be my first ROM, so I need to make sure I've got hotspotting for my netbook, working GPS, and bluetooth voice dialing/commands/control for my T1.
[Captivate Android Development] Shep FC3:
Everything is working great for me on 10.1. I'm getting worse batt life than on 9.5 (same as stock), but overall its running better. I'm going to try the battery calibration to see if that helps like it did after I flashed 9.5.
[Captivate Android Development] torrin66:
I have been fighting battery life on Perception since, well, the beginning. 10.1 was particularly bad for me, so I ended up flashing the JL2 modem and the Speedmod Kernel.

Today, I have been unplugged for 11 hours and I still have battery left (which for my phone is AWESOME). I never got more than 9 hours out of 10.1 before the phone shutoff.

When I just flashed the JL2 modem, the battery got better (2 hours more standby time), but the Speedmod kernel seems to be the magic sauce. I did enable the battery tweaks in Speedmod.

It has been ~36 hours, so I will have better data tomorrow, but everything seems to be running better with JL2/Speedmod/Perc 10.1
[Captivate Android Development] ryboto:
you must have a cellular tower nearby...if I leave wifi, bt, gps, and data on during the day, my phone might last 6-8 hours, WITHOUT even bringing it out of sleep.
[Captivate Android Development] DrDubzz:
speedmod has been a lifesaver for me, but how do you install a modem? I'd like to try your combo and put the JL2 on my phone
[Captivate Android Development] bmuellercinci:
I don't think it's hardware related specifically since it works fine with Cognition. I think perhaps it's either the wifi (my top suspcion right now), cell standby, or perhaps something else "under the hood" that's just different in the i9000 based builds.
[Captivate Android Development] jhernand1102:
Download the modem from the modem thread and flash with CWM
[Captivate Android Development] froli13:
Do I have to disable lagfix before flashing speedmod kernel?
[Captivate Android Development] sob33316:
10.1 is wicked fast and i enjoyed it. I just enjoyed 9.5 better. Turning the wifi to have decent battery life for a few days was the only issue.

DG 9.5 might be the best one i have found yet for my cappy! thank you!!
[Captivate Android Development] DrDubzz:
nope, just use SGS Kernel Flash and you're good to go
[Captivate Android Development] froli13:
And if I take the CWM flashable zip? Still no need to disable lagfix?
[Captivate Android Development] paracutin:
Sounds like your charger is not right. I bought a generic car charger from a gas station. Both it and the phone got hot when I used it. In the trash it went. I think the charger is supposed to output 5v (battery itself is 3.7v). So I guess you are correct, you can over charge the battery but only with an incorrect charger. With a quality charger and battery you cannot over charge.
[Captivate Android Development] DrDubzz:
not sure, I haven't done it that way
[Captivate Android Development] froli13:
Posting it here in case someone else is wondering...
[Captivate Android Development] kppanic:
Exactly. So this discussion should end with the conclusion that the battery life is proportional to the proximity of cell phone towers rather than if ROMs or the hardware Captivate itself uses too much battery.

I am not trying to be cynical or an ass here.. Its just that within most of the batteries discussion there are no control variables and there are just too many unknowns to discuss the matter systematically.

I am pointing out that almost all complaints of battery drain seems to be a "cosmetic" problem (i.e. faulty extrapolation of battery usage pattern and prediction) rather than an actual, more grave underlying hardware or fundamental problem. Like I said before, once I almost never had the screen on -- maybe about 5 minutes out of the entire 180 minute internet radio streaming session -- and yet the batteries usage showed that 93% was from display. I should have had a screenshot but I didn't think much of it then.
[Captivate Android Development] MZeora:
I tried Perception 10 for a few hour + gba emu lite and had no battery issues.

What did kill me was for some odd reason I could not accept incomming calls. A deal breaker for sure and went back to Cog2.3b8. Should anyone know a fix or extra step needing to be taken to make it work I would easily flash over to give it another run.

I bought the Captivate in Dec 2010 from AT&T. Cog reports I'm using a JI9 modem.