Related
This started on suiller's ROM guide, but I feel it's really OT so I should take it outside.
I've had battery issue ever since I got the Diamond. With moderate use (maybe ~15-20min of call per day, email check every 30 min, moderate web browsing) the battery level can drop by ~ 15-20% per hour on average. This means the battery would only last 5-6 hours without charging, which is not good enough to last through a day.
I first looked at whether the phone has any serious battery drain application, and it doesn't. With BatteryStatus I see the battery drain is ~ 100-150mA with GSM on, BT on. When I'm downloading email, or browsing the web, it does go up to 200 ~ 300mA briefly, but that is only when it's transmitting / receiving data. In standby mode with screen off it drains less than 50mA. These numbers seem pretty typical from my experience.
And here's the weird thing - on a typical day, when I wake up, and take the phone off the charger, it can drop from 100% to 93% within 30 min. On the way to work, when I would browse the web lightly, it can easily drop from 93% to 80-85% within an hour. That's pretty bad battery life.
Yet there are instances when I've been browsing the web, or playing MP3, or using YouTube for a good 10-15 min, but the battery level would not drop.
I figure maybe the battery needs to be re-calibrated, so I decided to discharge the battery and recharge it. I know this doesn't help improve the battery life of LiIon batteries, but I was trying to recalibrate it.
What happened, when I was discharging the battery, was I found the battery drop was very quick from 100% down to ~ 50%. From that point on, the battery drop is much slower.
And from 50% to 25% the battery seems to last forever. The most interesting thing is with the battery down to 15%, I did a lot of 3G web browsing, listening to MP3's, turn wifi on, and that 15% of battery lasted a good 3.5 hrs with heavy use until it's so low the phone stopped working.
The whole discharging process ended up taking 10 hours, and that's with HEAVY use for the last 3-4 hours too. That's actually acceptable for battery life (not great, but at least it'll last me through a day outside with moderate use) and obviously doesn't jive with the 15-20% drop per hour when I'm operating in the 50-100% full range.
When I'm charging the battery, I also noticed the level went up from 0% to 70% very quickly ... pretty much over 40 min. BatteryStatus shows it's being charged at +600-700mA.
As the battery gets full, the charging is much slower ... BatteryStatus shows it is charging by ~ 100-200mA only.
With the battery level up to 99%, it took almost forever to finally get up to 100%. I think it took at least 20 min.
So after a full discharge - recharge, I used my phone as normal this morning to see if it's been calibrated, but nope. It still drops from 100 to 93% within minutes of doing virtually nothing, and easily drop to 80% after an hour ride to work.
Does your battery perform the same way? Should I replace my battery? Or is there a way to properly calibrate the battery?
btw location and reception has nothing to do with it. I have good to excellent reception throughout this test.
I'm having the same problem but not with every rom (don't know wich ones, tested almost every rom hero) So is this a piece of software wich shows the live that doesn't work ?? or is it the battery ? As i can see it it's depending on rom thus it's not hardware
But hey I'm n00b
i've noticed that a soft reset or power up will use 3-7% of battery depending on the weather (what else could it be )
don't have the ability to discharge but i agree that in many cases the battery usage drops drastically & there is no reasonable cause
hope someone can figure this out!
From 4pda.ru
http://4pda.ru/forum/index.php?showtopic=85754&st=100&p=2338080&#entry2338080
1. discharge the battery completely (by playing video, audio, etc.)
2. Remove the battery and wait about 1min then place it back (do not power on the phone)
3. Full Charge the phone, wait when LEDs stop blinking (do not power on the phone)
4. When fully charged - remove the battery (do not power on the phone)
5. Wait about 1min then place the battery to the phone and now you can power it on.
If battery is more or less OK it will re-calibrate.
I hope it will help!
STM123 said:
From 4pda.ru
http://4pda.ru/forum/index.php?showtopic=85754&st=100&p=2338080&#entry2338080
1. discharge the battery completely (by playing video, audio, etc.)
2. Remove the battery and wait about 1min then place it back (do not power on the phone)
3. Full Charge the phone, wait when LEDs stop blinking (do not power on the phone)
4. When fully charged - remove the battery (do not power on the phone)
5. Wait about 1min then place the battery to the phone and now you can power it on.
If battery is more or less OK it will re-calibrate.
I hope it will help!
Click to expand...
Click to collapse
Thanks. I tried those steps yesterday and my phone is pretty much behaving the exact same way after the battery cycle.
After all the steps, the battery shows it's 100%. I unplug it, and it drops to 97% within MINUTES literally. Now I plug it back in, and it takes forever to get from 97% back to 100% (> 1hour)
I think it may be a battery problem and not a calibration problem. The drain averages ~ 120-150mA when phone on, screen on, no data, and below 100mA with phone on in standby mode. That seems pretty typical? I'd think the battery should last longer than 8 hours (till it completely dies) in that case.
Where do you guys suggest I buy a new battery for the Diamond (other than HTC directly)? I bought one from DealExtreme but the battery runs ~ 10C hotter than normal all the times ... I don't think I want that as my primary battery.
If you get through a full day with moderate-heavy use on your battery, I say that is normal and good battery life on a Diamond. So, why bother that the percentage is not proportional? I would not get a new battery for this since the problem is only in the reported percentage, not the battery life itself.
I've had plenty of cars that went from full to half tank on the meter significantly faster than from half to almost empty. You know about it and adapt to it, simply.
Hello !
I'm understand you, i have a ELF (Touch P3450), and a Diamond, the same problem appear for the two phones!
Every Morning, when i disconnect from charge my diamond, my level battery go to 93% in 10mns without reasons (One sms, no 3G, no Wifi etc).
My battery go down to 50~70% around 14H (2H pm), and stays at this level for many hours (4-5hours ~), i think it's not a problem with our battery, but a dysfunction of the sensor battery, which shows wrong data =/
By the way, that problem doesn't appear every day, for example, today my battery has that level : 83% (15h43), so today it has a good level.
Since i have flash that ROM : http://forum.xda-developers.com/showthread.php?t=521941, with radio 1.13.25.24, i have less less issues with my battery, it's more stable!
That's all, hope that helps you.
Ok guys, I've made a few discoveries that I figure I could share with everybody. Maybe you'll find it useful.
Last week I went on a trip and turned off the data connection while I was out of the country. Instead of letting the roaming charges kill me, I was relying on wifi to check emails and browse the web.
I ended up checking emails just as often, because where I worked had wifi AP.
Now, I could usually get 8, maybe 9 hrs out of my battery with moderate use before it's completely empty previously. So I was very surprised to find that with a similar usage pattern, but using wifi instead of EDGE/GPRS I still had 30-50% battery left at the end of 8-9 hours day everyday during the trip. I know data uses a lot of battery, but I always thought wifi drains even more, so that's quite a stunning discovery.
Now, I don't think it was due to wifi draining less than GPRS/EDGE (can't be true), so it must be something else. In trying to figure out what made the difference, I did a bunch of tests after the trip, and this is what I find-
1. Data channel dis-connection / re-connection is BAD
I used to always set my phone to auto-disconnect data channel (EDGE/GPRS) after 5 min of inactivity, in an attempt to save battery. What I found, was keeping the data channel open does NOT actually drain more battery than leaving it off at all. Transmitting data drains battery, but not leaving the channel open. However, disconnecting it, and re-connecting it all the times actually drains quite a bit of battery. I set my phone to check email every 30 minutes, and then there's also the odd weather forecast that needs data channel. In a 9 hrs day, that means channel disconnection + reconnection of about 40 times.
The last couple days I have left my data connection ON all the times, and I actually get more hours out of my battery. My battery used to drop ~ 10-15% per hour with moderate use. By keeping the channel on all the times it's been kept to under 10% per hour!!! I've only tested it for a couple days. I'll report more on it once I get to test it for longer, but the idea that 'keeping data connection off when you're not using it to save battery" seems to be a complete myth. The opposite actually saves battery!!!! And as a bonus, I don't even have to wait for the data channel to connect when I need it!!
2. Recycling the radio is VERY BAD
Everybody knows 3G is a real battery killer. However, similar to EDGE/GPRS, keeping the 3G channel open does NOT drain any more battery than turning it off, or turning on EDGE/GPRS channel. When the data channel is idling, it doesn't matter whether it's on EDGE, GPRS, 3G, or even completely turned off, the battery drain is close to zero in all cases.
Now, you do see a 1.5 - 2 times battery drain with 3G compared to EDGE/GPRS, so I've always turned 3G on only for web browsing or watching YouTube, and use GPRS / EDGE for regular emails update. The thing is though, if you're not transmitting much data (which you won't for regular email update), the difference in battery drain is minimal. SWITCHING between 2G and 3G though, requires a radio power cycle (turn off then back on to switch frequency) and THAT drains a lot of battery!!!
So if you're often switching between 3G and 2G, and you only transmit little data in 2G mode, you might actually be better off keeping it in 3G all the times instead of forcing the radio to power-cycle all the times.
I've tried keeping it in 3G all day long and I noticed minimal increase in battery drain. However, there might be another reason you want to consider - RADIATION. 3G not only drains more battery than 2G, it also transmits at a stronger power than 2G and as a result create more radiation. For that reason, I'm still keeping my phone to 2G for email updates and what not, and switch to 3G only for web browsing. For radiation you may try this thread if you want to read more about it.
3. VGA screen is a REAL battery killer
I do quite a bit of reading on my phone (ebook, on-line magazines etc) and reading ebook was never a battery concern in my days with the Touch (QVGA screen).
That's why I was quite surprised on the Diamond, reading the ebook for 1 hour, with EVERYTHING else turned off (GSM, EDGE, GPRS, 3G, BT, wifi), my battery level went down by 12% in ~1 hour.
The VGA screen drains a lot more battery than the QVGA screen. Now, if you need to use the phone you need to use the screen, there isn't much of a choice. It does make sense, however, that if you're using the screen for a while (like reading ebook) switching from a high brightness level to a lower brightness level.
Oh, and the auto-adjust brightness thing? That doesn't help you save battery at all. This is because it polls the light sensor every 2 sec (default value, but you can change it) and adjust screen brightness accordingly. This mechanism drains battery in itself, and in most cases end up using more battery than keeping the brightness constant at a low to medium level.
The auto-adjust thing is cool, and in theory it sounds like it can save you battery, but unless you constantly set the brightness to max even when you're in a dark environment, disable the auto-adjust and just set it to a constant 50-60% instead.
These are the few things I've noticed and I'm still trying things out, but over the last 2 days I've seen a significant drop in battery drain. I would be lucky to go through a 8-9 hrs day with moderate to heavy use before, the first 2 days I tried this I still had 60% battery left after 5 hrs of moderate use. The Diamond is very weak on battery life so every bit helps! I hope these tips are useful to you!
Thanks for your share
number16 said:
When I'm charging the battery, I also noticed the level went up from 0% to 70% very quickly ... pretty much over 40 min. BatteryStatus shows it's being charged at +600-700mA.
As the battery gets full, the charging is much slower ... BatteryStatus shows it is charging by ~ 100-200mA only.
With the battery level up to 99%, it took almost forever to finally get up to 100%. I think it took at least 20 min.
Click to expand...
Click to collapse
It's exactly what the charging process is supposed to do.
Read more here:
The charge time of most chargers is about 3 hours...
Increasing the charge current does not shorten the charge time by much. Although the voltage peak is reached quicker with higher charge current, the topping charge will take longer.
Some chargers claim to fast-charge a lithium-ion battery in one hour or less. Such a charger eliminates stage 2 and goes directly to 'ready' once the voltage threshold is reached at the end of stage 1. The charge level at this point is about 70%. The topping charge typically takes twice as long as the initial charge.
Click to expand...
Click to collapse
source:batteryuniversity (dot) com
When I woke up this morning, I turned off my phone and after it booted up I unplugged it, because I wanted to get a realistic idea of it's battery life (it's been fluctuation on me). It was at 100% I'm reading at 19% now, I have an Up time of 3:12:00 and an Awake time of 2:44:16 (I have been using it pretty constantly, so the awake time doesn't worry me too much). This is obviously ridiculous, this could possibly die in less than 3 & 1/2 to 4 hours. Battery use is: Android System: 58%, Display: 17%, Cell standby: 14%, Everlands Lite: 6%, Phone idle: 3%, android.process.acore: 2%. I just downloaded Everlands today and played it a lot, but with that low of a percent it can't possibly be an issue. I'm running Damage Control v3.2, and I'll post the DConfig in the next post.
DConfig
Basic Tweaks:
ZipAlign On Boot
swppart
Swappyness: 30
Dalvik heap: 32mb
LowMemKiller: Evo 150mb
Advanced Tweaks:
Up threshold: 95
sampling_rate: 200000
Dirty_Background_Ratio: 5
Dirty_Ratio:15
Dirty_Writeback: 1500
Dirty_Expire: 600
JIT is NOT enabled
Advanced Tweaks2:
vfs_cache_pressure: 100
Banned Apps:
Launcher
Sense
I had Sprint apps banned but then unbanned them. I only got Sprint Nascar back.
Debug Profile:
Page-Cluster: 3
laptop_mode: 0
Dirty_Expire: 600
Dirty_Writeback: 1500
Dirty_Background: 5
Dirty_Ratio: 15
Up_Threshold:95
Sampling_Rate: 200000
lowmem: 3584,4096,6144,38400,38912,4860
Please, any explanation for why my battery drain has suddenly jumped up so much would be greatly appreciated!
did your battery suddenly start dying quick? mine will last all day ONLY if i leave it alone all day, no calls or anything. If I use it minimally i get about half a day and if I have heavy usage on it then I get about 4 hours or so.
Prior Battery Life
I was able to go about 17 hours off the charger once without holding back on my usage at all, and that wasn't a huge outlier. Seriously, I know I've been able to get at LEAST 12 hours out of it streaming Pandora for an hour plus lots of texting, twitter, facebook, web browsing, and even moderate GPS usage.
I think other battery threads would be more useful if they included Awake time more often, because obviously I am not having a problem with it not going to sleep (since I was actually using the thing almost the entire time I had it off the charger).
You may actually have a bad battery. Mine gets unplugged at 6am, has a 30 min charge at 8pm on my way home in the car, then plugged in at 11:30 or 12 with 40% left.
The only thing I have done is kill most of the widgets, use a static background and that is about it.
you might have a bad battery, or maybe it was just something for that time. if it keeps happening, go back to sprint and they'll probably give you another battery or even phone (assuming they have them in stock)
Battery Defect?
I tried the method that one user supposedly learned from HTC ( I can't post a link but it's titled "Official response from HTC RE: How to double battery Life (WORKS!) + 2nd Reply" ), and I'm not sure I've gotten the same battery life out of it since that happened. I just got it charged back up to 100% now, I'm going to try upgrading to Damage Control v3.2.2.1 and I'll throw it into the Power Save mode in the DConfig, then see how long it lasts.
Overview: Battery Managmet seems vastly improved in FroYo.
-FroYo Battery Testing 1:
Bluetooth: On
GPS: On
Wifi: On
Mobile Internet: On does not appear to be activly connected
Mobile Network:On
Auto Sync: Every Hour (As far as I can see)
- Start : 71% Battery @ 2:55 AM (GMT/BST)
-30 Min: 70% Battery @ 3:25 AM
Cell Standby 19%
Wi-Fi 21%
Phone Idle 19%
Bluetooth 17%
Android System 14%
Shopsavvy 7%*
Display 3%
-1 Hour: 69% Battery @ 4:25 AM
Exact same as above.
-7 Hour: 62% Battery @ 10:25 AM
Cell Standby 20%
Wi-Fi 23%
Phone Idle 22%
Bluetooth 22%
Dialer 7%*+
Android System 4%
Voice Calls 2%*+
Display 3%
Time is done in hours since last update, not the begining.
End of test
-FroYo Battery Testing 2:
Bluetooth: Off
GPS: Off
Wifi: Off
Mobile Internet: Off
Mobile Network:On
But after a hour battery had dropped <1%
Stay Tunned!
-FroYo Battery Testing 3:
Bluetooth: Off
GPS: Off
Wifi: Off
Mobile Internet: Off
Mobile Network:On
Everything Off
Airoplane Mode On
Screen Brightness 100%
-FroYo Battery Testing 4:
Screen usage test shall be on at 100% looking at this image
-Start 55%
-10 Mins 52%
Display 47%
Android System 29%
Cell Standby 24%
* Why this seems to be running I have no clue.
*+ 6 Phone calls recived but not answered.
Reserved for futher use
Great initiative. Just need more people to help report their battery life, as there seem to be quite some difference among some peeps.
Yea I know, I need to find some other tests, Any suggestions?
Not a suggestion, but a question : When you go to the *#*#4636#*#* menu, what is your battery voltage ?
Many report 4200 mV after 2.2 update, but I only get 3890. I know it's not much, but still...
Bouncer5 said:
Yea I know, I need to find some other tests, Any suggestions?
Click to expand...
Click to collapse
Has by any chance anyone made such test under Eclair?
Btw I've noticed that if you use task killer you can save battery. Apparently there are some apps that even when closed keep eating battery. But I really have no proof of it (and have no time to conduct tests). Maybe someone can help me?
And I also suspect that Chrome to Phone eats battery if you don't press "disconnect" even when you don't have any Internet connection enabled. But that's another thing I can't prove.
brief tests - unconclusive, eh
I never thought that battery percentage is accurate enough to perform these kind of test, also didn't have much time to do it (so basically % never changed in 15 minutes timespans). Anyway:
* started at 21%
- Everything off (screen too)
- gmail push on
- good (3-4 bars) mobile connection on 3G
- no 3G data connection
- Wifi on - sleep policy -> always on
- Wifi router is about 1m far away from phone
15 minutes later
= still 21%
next --------
* started at 20%
- same as before but
- wifi off
- 3G data connection on - mobile data connection NOT always on
15 minutes later (19.43)
= still 20%
next --------
* started at 19%
- same as before but
- 3G data connection on - mobile data connection always on
- gmail push received a short email while testing
- hotmail checked mail as scheduled and downloaded 6 short emails
15 minutes later
= still 19%
Tests were started as soon as % showed the reported number.
By night, on airplane mode, it loses about 2% in 8 hours.
Can't really complain. By the way I'm still searching for a tool like WinMo BatLog. Anybody knows if it's feasable on android ?
Bouncer5 said:
Overview: Battery Managmet seems vastly improved in FroYo.
-FroYo Battery Testing 1:
Bluetooth: On
GPS: On
Wifi: On
Mobile Internet: On does not appear to be activly connected
Mobile Network:On
Auto Sync: Every Hour (As far as I can see)
- Start : 71% Battery @ 2:55 AM (GMT/BST)
-30 Min: 70% Battery @ 3:25 AM
Cell Standby 19%
Wi-Fi 21%
Phone Idle 19%
Bluetooth 17%
Android System 14%
Shopsavvy 7%*
Display 3%
-1 Hour: 69% Battery @ 4:25 AM
Exact same as above.
-7 Hour: 62% Battery @ 10:25 AM
Cell Standby 20%
Wi-Fi 23%
Phone Idle 22%
Bluetooth 22%
Dialer 7%*+
Android System 4%
Voice Calls 2%*+
Display 3%
Time is done in hours since last update, not the begining.
End of test
-FroYo Battery Testing 2:
Bluetooth: Off
GPS: Off
Wifi: Off
Mobile Internet: Off
Mobile Network:On
But after a hour battery had dropped
....
What is your display setting? My display shows 75%, and it's about as low as it can go.
Click to expand...
Click to collapse
andycted said:
By the way I'm still searching for a tool like WinMo BatLog. Anybody knows if it's feasable on android ?
Click to expand...
Click to collapse
I've been searching the market for a while but I couldn't find a tool that shows the power drain in Amps
Brightness
Airplane mode - Completely white screen
* Full brightness:
started at 17%
after 2 minutes = 16%
(brief pause to check, then back on white screen)
after 1 more minute = still 16%
(brief pause to check)
after 1 more minute = 15%
(brief pause to check)
after 1 more minute = 15%
Lost about 2.5% in 5 minutes
* Minimum brightness:
started at 13% (didn't wait for full step, probably was already close to 12%)
after 2 minutes = 12%
(brief pause to check, then back on white screen)
after 1 more minute = still 12%
(brief pause to check)
after 1 more minute = still 12%
(brief pause to check)
after 1 more minute = 11%
Lost about 1.5% in 5 minutes
(kept going with low brightness)
after two more minutes = still 11%
after one more minute = still 11%
after one more minute = still 11%
after one more minute = still 11%
Apparently lost less than 1% in 5 minutes
Probably the % is not very accurate here anyway, or maybe at the beginning of low brightness test was still hot from the previous high brightness one.
after one more minute = 10%
time to plug it in, I'd say...
martintzvetomirov said:
I've been searching the market for a while but I couldn't find a tool that shows the power drain in Amps
Click to expand...
Click to collapse
I've seen somewhere someone (eh) reporting that in /proc/somewhere there is a setting that can be read to do it. That is where my knowledge stops.
zarg2 said:
Not a suggestion, but a question : When you go to the *#*#4636#*#* menu, what is your battery voltage ?
Many report 4200 mV after 2.2 update, but I only get 3890. I know it's not much, but still...
Click to expand...
Click to collapse
I have one battery at 3742 mV, however it's at 13% and charging.
The other battery, which is almost full and not charging, shows 4153 mV.
Don't know if it's affected by charging state.
andycted said:
I have one battery at 3742 mV, however it's at 13% and charging.
The other battery, which is almost full and not charging, shows 4153 mV.
Don't know if it's affected by charging state.
Click to expand...
Click to collapse
Yep, the more juice you put in the battery the higher the voltage. So a more fully charged battery will have a higher voltage than a lower charged battery.
It goes from like 3.3v to 4.2v.
RaptorRVL said:
Yep, the more juice you put in the battery the higher the voltage. So a more fully charged battery will have a higher voltage than a lower charged battery.
It goes from like 3.3v to 4.2v.
Click to expand...
Click to collapse
Erm, yes I've explained myself not very well... I meant that I didn't know if the fact that one was charging and the other not could impact the reading. I wanted to provide the approximate range of usage, since, if I'm not mistaken, the phone turns off when it reads 3.3v ?
EDIT: also on the same note, I think if I remember correctly, I've read that the % read is sometimes 'skewed' depending on how full the battery is. Like 1% battery at 100% lasts (for example) longer than at 50%. Am I awfully mistaken ?
Yeah, shutdown is usually around 3.2 or 3.3. It depends on the manufacturer. I think the batteries get damaged below 3.0v. Protection usually kicks in around 2.7v - 3.0v.
Not 100% sure, because I always mix up LiPo's and Li-Ion batteries
While charging the voltage will be a bit higher, and when you unplug it will go down a little bit.
EDIT: also on the same note, I think if I remember correctly, I've read that the % read is sometimes 'skewed' depending on how full the battery is. Like 1% battery at 100% lasts (for example) longer than at 50%. Am I awfully mistaken ?
Click to expand...
Click to collapse
Yeah indeed. The voltage drops much faster when 100% charged than 60%-70%. Also the reason why there seem to be so many issues with the wrong percentages shown .
As shown here: http://www.ibt-power.com/Battery_packs/Li_Ion/Li_Ion_DiscGph.JPG
Just some random graph found via google
gemro311 said:
What is your display setting? My display shows 75%, and it's about as low as it can go.
Click to expand...
Click to collapse
Screen is set to the lowest setting using the powerbar, Also the screen was off at the time of doing the test, i.e if it was in your pocket.
During the screen test with the image, it was set to as bright as the power bar will allow
RaptorRVL said:
Yeah indeed. The voltage drops much faster when 100% charged than 60%-70%. Also the reason why there seem to be so many issues with the wrong percentages shown .
As shown here: http://www.ibt-power.com/Battery_packs/Li_Ion/Li_Ion_DiscGph.JPG
Just some random graph found via google
Click to expand...
Click to collapse
Right, so it's pointless to compare battery drain % at full level and at 1/4, for example. I've also read somewhere that battery temperature influences the reading, as well as reducing the efficiency of the battery itself.
andycted said:
Right, so it's pointless to compare battery drain % at full level and at 1/4, for example. I've also read somewhere that battery temperature influences the reading, as well as reducing the efficiency of the battery itself.
Click to expand...
Click to collapse
If you really want ill get back and do it with the *#*#4636#*#* and give you 4 digit number from there
Wifi streaming + screen on
Tested music streaming with xiia
* first run with WiFi
- most stuff off, same as previous tests
- music channel was accujazz
- music through the speaker, half volume
- WiFi on
- Airplane mode on
- Screen on (forgot the timeout off)
Battery went from 92% to 88% in 15 minutes (4%)
* second run with 3G
- same as above
- no airplane mode
- 3G in place of WiFi
Battery went from 68% to 62% in 15 minutes (6%)
I've repeated the test and still it seemed that 3G consumed a bit more battery than WiFi (5% vs 4%), but this might be also due to the fact that the first test had no mobile connection on.
Bouncer5 said:
If you really want ill get back and do it with the *#*#4636#*#* and give you 4 digit number from there
Click to expand...
Click to collapse
Do I feel stupid now not having ever used that as a reference for testing
Hi,
I used the app Current Widget to manage my phone battery.
I just caliberated the battery an hour ago.
Now, when I turn off the screen and left it on standby for like 20 mins, I got the log report on the battery which said -4000mA (or something like that) every minute.
Is there anyway to improve this?
Thanks
Also, I have rooted my dvice to ARHD 1.2.3. For the last 10 mins, the log files recorded -4268mA constantly
I believe the standby drains aren't reading out correctly.. i have the same issue with battery monitor widget. Imagine with a drain of 4000mA constant the phone would be dead within ~25 minutes (as the capacity is 1800)
Yes, I think so too, hence I uninstall it and use battery monitor widget instead. Now it measures about 100 mA in standby. Is that normal for the One X?
Even 100 i think is a little high, because the companion core should kick in @ standby.. and that's the problem at the moment with the monitoring apps i think.. sometimes battery monitor is reading 4-10mA drain but sometimes as high as 1000+
Running CM10 Wild into the Night.
If I let the phone sit without touching it, I get an average drain rate of about 10% per hour, lasting me about 10 hours on a full charge. However, the battery decides to have a field day as soon as I perform the occasional texting and web browsing.
As shown by the screenshot, culprit is the screen. However I have the brightness set way down (about 1/4 from the bottom) and the phone goes to deep sleep 70-80%. According to Gsam battery monitor, the screen uses about 60% of battery with only around 52min of on-time during the 5 hours that a full charge lasted.
Something is definitely up. When I was running stock Touchwiz, AndroidOS used to be the battery hogger. But now the screen has taken over the crown on CM10.
Screen will always use the most unless you neve use the phone. How old is your battery? Does it spin?
Sent from my SPH-L900 using Tapatalk 2
That sounds like you need a new battery. 52 minutes is no
Where near long enough
. or possibly with the screen on some app is running the CPU full speed
use CPU spy and leave the screen on indefinitely after unplugging it from the charger at full battery, and see if the highest CPU state is being used for the entire screen on time after you unplug it.