I have noticed that every time I load a new Rom on my phone (including a wipe) my battery life is awesome as long as I let the phone get down to about 2 percent before recharging. As soon as I charge the phone without the battery almost dead the battery life on the phone starts to suck. This leads me to believe that there is something written to flash memory when you plug the charger in. For a while I had noticed that if I plug the charger in in the middle of the day due to heavy usage that my battery life sucks for a week or so afterwards then slowly goes back to normal after regular charging before I go to bed. Under normal charging conditions (plug it in when I go to bed) I can get about a days worth of charge. This is a stark contrast to the 2 plus days I get out of the phone after a fresh ROM load is loaded and I let the battery almost die before charging it in.
Anyone else observe this or have any idea whats going on that can be causing this. Maybe its just a simple matter of finding the file and deleting it. And yes I have tried doing a jump charge and wiping the battery stats. It doesn't give the same results as a wipe of the phone with a new ROM.
My battery seems good if i do this...
Install new ROM or not, just charge phone while i sleep (usually from 12am-530am) up and at work, coverage sucks in the building so i constantly switch from 1x to 3g ... battery life drains and i will be dead by 12 - 1230pm If i leave it on charge from then until i hit 100% (usually 30 minutes after) i take it off and head out of work, ill last all day and end up at 12am again with at least 60%
This is all heavy usage. Pandora stays running, facebook and plenty of texts/emails. My phone will never sit still without any activity for 2 minutes.
Switching kernels is the thing that saved my battery with now my kernel is 2.6.32.32-ck2-BFS by ziggy
awesome battery life out of the stock HTC battery
It could be different phones handle the same rom/kernel differently too. I noticed this when i was running a blackberry storm 2. Both mine and my brothers, we would have the exact hybrid OS installed. let em sit idle after having done the exact thing....mine would drain a lot faster than his. could be phone vs phone in the same case as i mentioned, who knows? what rom / kernel you running?
Sorry man but I don't understand your post. The sentence where you explain what you do doesn't make any sense. Can you explain again.
I'm running Cyanogen 7 rc2 with the stock kernel that comes with it. I don't believe its possible to change the kernel on Cyanogen.
trevoryour said:
Sorry man but I don't understand your post. The sentence where you explain what you do doesn't make any sense. Can you explain again.
I'm running Cyanogen 7 rc2 with the stock kernel that comes with it. I don't believe its possible to change the kernel on Cyanogen.
Click to expand...
Click to collapse
You can use whatever AOSP/GB kernel you want.
So its been a while since my last update but I wanted to pass along some more observations in hopes that someone can tell me how the power system works on Android phone.
For quite some time I have been able to use my phone for 2 full days before it required a recharge. This came about when I loaded Cyanogen 7 on my phone from scratch. As long as I charged it every 2 days the phone would have no problems lasting for two full days.
Two weeks ago I got stuck at a car dealership for about 8 hours. I passed the time by reading books, playing angry birds and surfing the net on my phone. About 7 hours in my phone was at 2 percent. I plugged the phone into someones charger and charged it for an hour or so so I would have a phone for the drive home. Ever since then my battery life has sucked. For a while I could barely get a full day out of my phone before it would die. I'm getting about a day out of it now which is acceptable I suppose but Its disappointing since I know the phone is capable of so much more.
So seriously what is the deal with the charging system on this phone? Why is it the phone has excellent battery life only after the phone is wiped and fully discharged before it is plugged in again? If a wipe of the phone fixes the battery what is it about the whip that does the fixing? Can it be reproduced without wiping the phone?
Come on guys. Someone out there is smart enough to figure this out. Hook us up.
It'll constantly recalibrate after you flash, so no real need to do the full discharge unless you really want to. If you don't do it then it'll get stable and better accuracy after a couple of weeks, but yes when you first flash a ROM it'll have sketchy battery life.
The battery is charging fine but your phone is still trying to determine how big your battery is, so it may not fully charge all the way. The quickest way for your phone to determine how big your battery is, is to drain it all the way down then charge it all the way back up. Some say this is potentially damaging to Li-Ion batteries. Personally I don't do it because of that, but if you chose to not do a full drain, your phone will figure out your battery size it'll just take a longer time for your phone to do it.
The actual battery life you get on your phone varies hugely on (in order):
1) amount of CPU you're using
2) data usage
3) reception strength
4) Screen brightness
So that in itself will cause some drastic day to day difference in battery life.
With all that being said, the battery life you're not getting during the inaccurate gauge period isn't that much. If you're someone who needs every last minute of battery that you need to have them right away, then personally I would suggest doing some other things such as under-volting your kernel and lowering your clock speeds.
Related
Normally I charge my phone nightly right before I go to bed and don't plug it in at all during the day usually.
I have noticed that on days where I have to use my phone heavily and require a charge midway through the day for the next week my phones battery life is almost cut in half. If I charge it regularly at night for a week or so the battery life will go back to normal. Has anyone else noticed this behavior? I'm trying to figure out if this is an incredible issue or an android issue.
Another thing I noticed is that under the battery stats it lists that my awake time is 43 hours. Its just slightly less that the up time. This makes me think that my phone isn't going to sleep. Anyone know how to tell if my phone is sleeping or tell me which app is keeping my phone from sleeping?
Install this app
http://www.appbrain.com/app/spare-parts/com.androidapps.spare_parts
Go to partial wake. in one of the drop downs.
I checked the partial wake usage and I don't see anything out of the ordinary.
I actually have an update to the situation. As a last resort I wiped my phone and loaded Cyanogen 6.1. At first it was working awesome. Battery life was awesome but as time went on the battery life got worse and worse and now i'm back where I started.
It sure seems like there is software problem with the way the phone tracks the battery usage/charging information. As I said it seems like charging the phone midway through the day or charging the phone before the phone is dead seems to have a negative effect on the battery. I don't get it. Letting the phone completely die isn't realistic. Charging the phone when I go to bed without affecting how long the phone last after the next charge should be totally doable you would think.
Does anyone have any suggestions or insight that might help me out.
You don't say if you charge with the phone powered off or on. But sound like you're always charging with the phone turned on.
I don't think the phone charges fully while turned on (to prevent overheating maybe? ).
If you can, I'd suggest trying to charge with the phone off, at least during the nightly charge.
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Unrevoked forever
SkyRaider Sense 3.5
Radio 2.15.00.11.15
Yes I do charge my phone while its powered on (like the rest of the world). I don't know anyone that turns their phone off to charge.
My phone is paid for by my company so that they can get ahold of me in the event of a server failure or some other IT related disaster. If the phone was off I wouldn't be able to receive those important calls.
I can't believe no one else has witnessed this type of activity with the incredible. I have tried 2 phones (replaced for an unrelated reason) and 3 batteries. The behavior seems like a software glitch. I have noticed with with both AOSP and Sense Roms.
Does anyone have an in depth understanding of how the battery system works on this phone. I also have an Iphone and the battery life compared to my android phone is ridiculous. I would use the Iphone exclusively but it doesn't do everything my android phone can do. I'm hoping there is a way to fix this.
Well, now you do know someone who charges with their phone off. Me!
I'm in IT as well and on call one week per month. But we don't run a third shift, so late night calls are almost never, and they have my land line number.
Back on topic, I have experienced better battery life while charging with the phone off. Maybe you can get an external charger until a solution is found.
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Unrevoked forever
SkyRaider Sense 3.5
Radio 2.15.00.11.15
Well i'm on call 24/7 and I don't have a landline.
What do you mean by "get an external charger until a solution is found." Do you mean a second charger to charge during the day? I have plenty of chargers. Thats part of the problem. Charging in the middle of the day I believe is causing the problem. Until a solution is found? Are you saying there is in fact a problem?
Having to leave my phone plugged in all day kind of defeats the purpose of having a wireless phone don't you think?
Please...anyone have any knowledge of how the charging system works in android and specifically how it might work differently on the incredible?
trevoryour said:
What do you mean by "get an external charger until a solution is found." Do you mean a second charger to charge during the day?
Click to expand...
Click to collapse
I should have said get an extra battery and a stand-alone charger that allows you to charge the extra battery while it's disconnected from the phone.
Have you read the thread in general titled 'your battery gauge is lying to you'. (or something like that). Good read. Also there's hundreds of other threads on the inc's battery issues. Well known problem.
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Unrevoked forever
SkyRaider Sense 3.5
Radio 2.15.00.11.15
If your up time and awake time are essentially the same, you definitely have something running in the background. Try menu/settings/applications/running services and see what program might be running that shouldn't be. You can also use an app called System Panel to do a comprehensive survey. I recently had an update that resulted in the program running continuously in the background, affecting my battery life.
Some other threads have discussed that after 40+ hours of up time, their phone goes into max CPU usage all the time. Again, using the app System Panel, I confirmed this for my own phone at 45 hours. My ROM is the stock Froyo 2.2 with a custom kernel. the simple solution is to power off/power on the phone which resets the uptime.
My routine is to charge the phone with power on over night so I can use the alarm. When I get up in the morning, I power off the phone and bump charge it for about 30 minutes until the light turns green again. Then I'm usually good for about 10 - 12 hours of uptime with 3-4 hours of awake time using a 1500 battery. That time can also be reduced considerably if I'm receiving a poor 3G signal.
I did originally have a problem with a program not allowing my phone to sleep but I have since uninstalled that program and now my wake time numbers are where they should be. I think the remaining battery issues are a result of me having to charge my phone in the middle of the day as a result of the misbehaving program prior to me uninstalling it.
It almost seems like the the battery in the incredible has a memory. On a hunch I have started completely discharging my phone completely everynight before I put it on the charger. As a result my battery life as almost doubled. When I get home at night I start playing angry birds with the brightness at full until the battery gets to about 3 percent left. This obviously isn't a permanent solution but It certainly sheds some light on the root of the problem.
Prior to doing the full discharge I did a bump charge and wiped my battery stats. The battery is working great now. I wish someone would create a kernal/rom that has this issue resolved. Since these new lithium batteries aren't supposed to have a memory anymore I'm thinking it has to be something that the OS is doing with the battery stats file.
According to this article you should fully charge and discharge once every 30 or so charging cycles to resync the battery meter with the actual battery voltage. So maybe the complete discharge fixed your problems.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
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Unrevoked forever
SkyRaider Sense 3.5
Radio 2.15.00.11.15
not sure if this will help or not, but i have been running advanced task killer ever since 2.1(haven't gotten around to uninstalling before now, ha ha) and recently uninstalled it and installed watchdog task manager and my battery has increased two fold!
just my two cents worth.
Hey guys, I just got the droid incredible 2 and I first had the LG revolution but the 4g and the screen size made the battery drop down quick. I played with it for 20 minutes after it being fully charged, changing settings, and the battery went way down to about 80%. So I exchanged it for the HTC Incredible 2. They told me the batter was way better.
I went to the Verizon store to tell them the batter dowesn't last as long as expected. My Iphone 4 would be on all day, texting, pandora, email and web browsing and I still came home from work with battery left. My droid gets used from 7am to 1pm and its pretty much dead by then. They made me change the background data off, sync only email and weather, and download juice defender.
The batter still dies by 12:30pm after charging all night.
I have read all over people are getting excellent battery usage but I don't really know what to do to get the same. It is not temp rooted. Any ideas? Also, at work, in the building the data coverage is not so good so I usually do nothing but text on it and it still dies by 1pm.
I can't really say how well mine would do on the standard battery because I bought the extended battery immediately after getting the phone. I've been unplugged almost 15 hours and have 38% battery and I have sent/recieved 40-50 txts, 20 mins phone, browsed internet for 30-45 mins, played games around 30 mins, and listened to pandora for around 45 mins.
I would recommend the extended battery, it's $50 at verizon and I haven't even come close to killing it in a day.
Does the extended battery make the phone bigger? I'm thinking it would be thicker on the back. Would it have any drawbacks as to cases and stuff like that?
I'm not sure why mine is so bad, prolly because I am in a secure building and signal doesn't get through constantly. I'm surprised, I thought my iphone had bad battery.
the extended battery does have a thicker back. and yes, there are currently no cases for it, so there would be an issue there if having a case is very important.
as to your current battery, if your in a biulding with bad signal, that will most defintiely affect your battery life as your phone will have to use more battery to try to find a good signal. additionally though, the phone battery does seem to improve after about a week of charge/discharge cycles. not sure why this is, but i have seen it on my phone and seen many other report the same.
The battery sticks out a little more than 1/8th of an inch I would say. However, IMHO it protects the camera lens and flash lens from getting broken and I never really like using a case anyways.
I have amazing battery i charge it to 100 percent unplugged after then go to school texting 100-200 average everyday internet music by the time i get 3:00 i still have 80-70% and i'm 13 so imagine how much i use it and it still stays at that percentage
Having a phone in a building (or anywhere) the signal is weak is a drain on your battery. If your iPhone was with AT&T the signal may have been stronger where you work than with Verizon and may have therefore contributed to better battery life.
Also, if you didn't FULLY charge your DInc2 and FULLY discharge it right when you got it, you should really do a factory reset and immediately do the following:
Charge the phone for at least 8hrs with the power off, unplug for a few minutes, plug it back in. The light should only remain red for 10-20 seconds before turning green, otherwise this unplug-plug part should be repeated a few more times always letting it remain on "green" for an hour before unplugging an plugging back in.
THEN power up and use the phone until it shuts itself off because the battery is drained. Let it sit for a few minutes, and turn it on again. It should sut itself off again pretty quick. Let it sit, turn on again. Do this until it wont power up at all after sitting untouched for a few minutes and your battery is then fully discharged.
Now you can plug it in and start the charge part of the cycle as lined out earlier. Once the light turns green 10-20 sec after plugging it in again you have completed one "cycle".
This may sound excessive, but I'm kind of a nut about this kind of thing.
I didn't do anything special when I got my I2, am a realtively heavy user, and have an all day battery life. I'm pretty careless with my features being left on.
If you can't get it to last all day, either you are a much heavier user than I am or you do, in fact, either have a battery problem, or a battery calibration problem. You shouldn't need to calibrate the battery algorithms, but I guess it doesn't hurt to try.
I wouldn't say I am a heavy user. I normally text while I am at work and check facebook a few times. I also listen to pandora most times. I work for Vanguard and most people here have Verizon I believe. I was told when I switched from AT&T that signal should not be a problem where I am at. My Iphone 4 would get used much more and it too would have signal problems as well until I turned 3g off but it would last way longer than the droid.
I guess I can try the factory reset and full charge cycle this weekend but I'm not sure what Verizon can do for me either so it may just stay like this
this is bump charging no? (well the part about how to charge it). i spoke to am htc rep that said that bump charging will significantly decrease the lifespan of your battery life and therefore is highly not recommended.
TheAtheistReverend said:
Having a phone in a building (or anywhere) the signal is weak is a drain on your battery. If your iPhone was with AT&T the signal may have been stronger where you work than with Verizon and may have therefore contributed to better battery life.
Also, if you didn't FULLY charge your DInc2 and FULLY discharge it right when you got it, you should really do a factory reset and immediately do the following:
Charge the phone for at least 8hrs with the power off, unplug for a few minutes, plug it back in. The light should only remain red for 10-20 seconds before turning green, otherwise this unplug-plug part should be repeated a few more times always letting it remain on "green" for an hour before unplugging an plugging back in.
THEN power up and use the phone until it shuts itself off because the battery is drained. Let it sit for a few minutes, and turn it on again. It should sut itself off again pretty quick. Let it sit, turn on again. Do this until it wont power up at all after sitting untouched for a few minutes and your battery is then fully discharged.
Now you can plug it in and start the charge part of the cycle as lined out earlier. Once the light turns green 10-20 sec after plugging it in again you have completed one "cycle".
This may sound excessive, but I'm kind of a nut about this kind of thing.
Click to expand...
Click to collapse
I just got mine on Sunday, but even yesterday I was texting and surfing a fair amount yesterday and went to bed with the phone at 61%...
I am sort of amazed, I think Verizon has taken the underclocking thing and put it to work on the official release... at one point I turned off the screen for what amounted to an hour and when i turned it back on it was still the same battery level.
selayan said:
I wouldn't say I am a heavy user. I normally text while I am at work and check facebook a few times. I also listen to pandora most times. I work for Vanguard and most people here have Verizon I believe. I was told when I switched from AT&T that signal should not be a problem where I am at. My Iphone 4 would get used much more and it too would have signal problems as well until I turned 3g off but it would last way longer than the droid.
I guess I can try the factory reset and full charge cycle this weekend but I'm not sure what Verizon can do for me either so it may just stay like this
Click to expand...
Click to collapse
if your comparing battery life on the dinc2 with 3G on versus the iphone with 3G off there will also be a pretty big difference. if your tuirn off 3G on your dinc2, i would imagine battery life will be similar or better than your iphone had with 3G off also.
bik2101 said:
if your comparing battery life on the dinc2 with 3G on versus the iphone with 3G off there will also be a pretty big difference. if your tuirn off 3G on your dinc2, i would imagine battery life will be similar or better than your iphone had with 3G off also.
Click to expand...
Click to collapse
No I was comparing the Inc 2 to the Iphone with 3G on. My iphone would also last longer if I turned 3g off and just used Edge or whatever it is called. I don't think I can do this with the droid until it is rooted or download an app to do this.
I turned off juice defender and we will see how it goes today. I don't really like apps running in the background and it was turning off data eacht ime the screen locked.
I think the biggest difference is the verizon signal. The battery on this phone is amazing for an android device. While it is still nowhere near iphone 4 status as far as battery, it shouldn't drain like that. Have them either swap you a battery or the phone itself.
I'm a relatively heavy user. Especially with voice calls and I can go a day and a half easy.
But I also run launched pro with only a couple of widgets. To me sense is a battery hog.
Sent from my ADR6350 using XDA App
What would I do to go about swapping out the battery or the phone itself? Should I go back to the same verizon store? Or call them on the support line and try to get a battery or new phone that way? I have no clue why it is draining like that either, the signal can't be that bad, I literally had the same signal with AT&T in these buildings.
Well, lets be honest, one of the things Apple really puts a lot of time and effort into in their development is long battery life. It wouldn't surprise me to see the iphone outlasting most Android devices.
In any case...
While I don't need to, I do charge my phone while at the office. If you have a desk job then I don't see how this would be problematic. My work day usage includes 2 hours of bluetooth streaming (in my car to the stereo), media playback (music/podcast), and mapping with gps and 3g data (this drains my battery pretty quickly, but that's relative...it's about 15% per hour). Outside of that, my battery drain is quite low.
I only started charging at the office because I like to keep my battery as full as possible in case of extended emergency that requires being away from a charging source. It's that whole boy scout be prepared mentality I have. Besides, if you have the opportunity to charge, why not? It seems to charge pretty quick anyway.
I can charge at the office, but normally I forget the cord at home. Not a problem to buy another one but still. I was just concerned because I hear people getting 15 some hours on one charge and as of right now, my battery is below 50% since I just got back from lunch.
selayan said:
What would I do to go about swapping out the battery or the phone itself? Should I go back to the same verizon store? Or call them on the support line and try to get a battery or new phone that way? I have no clue why it is draining like that either, the signal can't be that bad, I literally had the same signal with AT&T in these buildings.
Click to expand...
Click to collapse
take it back to the store, and if that doesn't work then call. but the store would probably be a better bet as they can give you a new phone or new battery there whereas the phone support, you'd have to wait for the shipment.
Seems as if they were not able to help in store the first time. Rather than have someone check it out, they had someone come over and tell me I should turn off all the sync and data features. So I did do that, but then why did I get a smartphone?
It's possible you have an app that is not allowing the device to sleep. If it can't sleep, it will drain the battery much faster. You might get 8 to 12 hours awake yet idle.
Are you using many third party apps? If so, have you considered going through them, removing them one at a time, until you find the battery doesn't drain so fast anymore?
If you go to About phone in settings, then Battery, the last item will show awake time. This should be much lower than your Up time.
My G2 gets ghastly battery life. I've tried Juice Defender and I've recalibrated more times than I can remember. Most notifications are turned off and I'm conservative about powering off the various radios when I'm not using them. It wasn't always like that. I felt like I was getting most of a full day on one charge and loving it for many months, but something happened last summer I think. Maybe dust or moisture affected the phone. I've got a total of six batteries and three external battery chargers. No battery whether it's the OEM original, 1500mah spares that were amazing before, or the new 1800mah evo shift 4g batteries I tried out, will last more than about four hours from full charge to the 15% warning sound.
I've tried only charging in the phone. I've tried rotating batteries charged in the external chargers. Like I said, I've tried calibration scenarios of various kinds.
Last night, I took a fully charged 1800mah battery and put it in my phone and then charged the battery in the phone. The orange led never turns green when the phone is off. When the phone is on, I can just barely get the led to turn green at about 91% (starting from what should be a full charge that is reported as 80% by the phone). This takes a good 10 hours of charging. As soon as I woke the phone this morning, the battery meter started dropping while the phone was still plugged in. After unplugging, the meter drops to 80% in a matter of a few minutes.
Like I said, I tried juice defender. It only helps a little but the cost is waiting for the data radio to reconnect every time I wake the phone. I thought BT was the culprit for a while, but now it really doesn't matter if I leave it on or turn it off.
At the other end of the charge, the phone can run for several hours when the battery is supposedly between 1 and 3%. I know we are told to start charging again at 15% but my phone drops to that level in 3-4 hours of regular use. I haven't seen the phone report 100% charge on any battery in six months time, but it runs and runs at 1%. This is what bugs me. Is the phone just mis-reading how many milivolts are coming out of the battery? Why can't I complete the first step of calibration (charge overnight to the 100% mark)? Is there a hardware component that can be causing this or should it be entirely fixable in software?
Thanks for any ideas or tips
Did you wipe battery stats?
Sent from your phone
waxinpoetic said:
Did you wipe battery stats?
Sent from your phone
Click to expand...
Click to collapse
Yes I have many times but thanks for the suggestion.
Figured so.. Too bad, would have been too easy. I'm starting to see some batttery drain on my desire z now too. Im wondering if mine is a radio issue.
Sent from your phone
waxinpoetic said:
Figured so.. Too bad, would have been too easy. I'm starting to see some batttery drain on my desire z now too. Im wondering if mine is a radio issue.
Sent from your phone
Click to expand...
Click to collapse
I changed radios and did RIL matching last fall based on other's comments about better battery life, 4G and GPS. While I've had faster GPS locks and maybe better 4G performance, my battery life did not improve. It may have even gotten worse.
Today I'm trying out some different CPU governor settings. The CM 7.2 RC1 default is 'interactive' and I wouldn't normally touch those settings. I think the powersave governor helped a lot, but the phone became almost unresponsive. Trying 'conservative' now. I should have read This long ago, but just got around to it today. I might invest in the SetCPU app as well.
OK, I can count on a good six hours of normal use if setCPU is holding down the max cpu frequency at night or when the screen is off. I'm still tweaking. Today, the phone crashed while playing music over A2DP and tracking a run with runkeeper. I think it needs to tick faster than 368Mhz when the screen is off.
Are you seeing improvement? I changed radios and like you havent seen much improvement. But I am a little better off than you are. My battery drain is terrible (1-3%per minute) only when connected to the internet (4g or wifi) or using navigation. If the screen is off, or if Im using non-internet apps I seem to get regular battery use. Good luck with your cpu settings.. I have ordered a new battery, but I doubt it will solve my issue. I may try tweaking my settings too soon, but Id better research more.
Just wondering do you have SuperCharger V6 installed? On my Desire Z I had some serious battery problems just as you mentioned. After I would flash my ROM (wiping the caches + reinstalling) my battery life would return to normal. But whenever I would flash SuperCharger v6 my battery life would spiral out of control. My suggestion for a ROM that handles battery life fairly well is Andromadus Audacity B2, just make sure you download and flash GAPPs (google apps). For example running that rom I have been getting very good battery life, approx. 16-20 hours of battery life with moderate use) with default CPU settings and data always turned on. I'm sure if you use Juice Defender to control your data you'll get above average battery life.
Note: Andromadus is an ICS (android 4.0) ROM
Qwerty_Uieo said:
Just wondering do you have SuperCharger V6 installed? On my Desire Z I had some serious battery problems just as you mentioned. After I would flash my ROM (wiping the caches + reinstalling) my battery life would return to normal. But whenever I would flash SuperCharger v6 my battery life would spiral out of control. My suggestion for a ROM that handles battery life fairly well is Andromadus Audacity B2, just make sure you download and flash GAPPs (google apps). For example running that rom I have been getting very good battery life, approx. 16-20 hours of battery life with moderate use) with default CPU settings and data always turned on. I'm sure if you use Juice Defender to control your data you'll get above average battery life.
Note: Andromadus is an ICS (android 4.0) ROM
Click to expand...
Click to collapse
Thanks (and thanked) Ive been waiting till ICS roms are bug free and having working cameras, but I think I may just jump on it now. My battery issues are untenable at the moment on a CM7 based rom. Thanks for the advice.
I was seeing some improvement due to SetCPU profiles. However, now if I have GPS and Bluetooth on so that I can listen to music and track my run in runkeeper, the phone seems to 'crash' after about 35 minutes or so. The battery meter shows that the battery takes a nose dive and I think the phone shuts down at 1%. If I restart the phone, it might say I have 30 or 40% charge left but then it drops rapidly again. It seems like it hates the warmth of my pocket. If I let the phone out in the cool air like on my desk, I can reboot at get back to 60 or 70% even though it was just saying 3%. I'm not running SuperCharger.
I'm trying to find cheap G2s for parts on ebay now. Maybe I can at least test out my six batteries in a different phone to see if any of them are shot. They all seem to have the same problems in my phone.
This will be my final update. I bought a used G2 off ebay. The same batteries I used before now show as fully charged when I expect them to be fully charged. I will be getting a feel for general battery life over the next few days, but I expect battery life to be roughly the same. I just won't have to guess at what the current battery level really is.
I'm seeing now that the new phone will show a 60% charge when the old phone shows 15% for the same battery at about the same time.
The new phone shows 100% when topped off but if I put the topped off battery in my old phone, I see 75-80% charge.
I may try sending the old phone to HTC depending on what they offer for repair services.
revwillie said:
I bought a used G2 off ebay. ... the new phone will show a 60% charge when the old phone shows 15% for the same battery at about the same time
Click to expand...
Click to collapse
I think what's happened to your old phone (and mine!) is that the onboard voltmeter chip is reading low. I've compared the on-board mV reading to a multimeter-measured battery voltage and what the phone reads as 3.9V the multimeter gets 4.2V (a fully charged Li-Ion battery).
Who knows what's behind it, but it seems like a hardware problem to me.
Ok so after a hard reset and at 100% charge my HTC Radar says 1 day and 15 hours remaining. It has been like that for a few days. After about a week, 100% charge results in 20 hours remaining life. Eventually after a few more charges it averages at 15-17 hours remaining battery life. That is a big worrying decrease. These figures are always noted after a 100% charge and leaving it to settle for a bit.
So I started thinking what could be causing this decreasing stand by time?
Two theories:
1. It must be an app as I got excellent stand by time from a hard reset and with no additional apps so maybe a particular app is playing with the battery meter?
2. Could it be leaving the phone over night plugged in is doing something to the battery? Maybe I should unplug it as soon as it gets to 100%?
The strange thing is it can't be the actually battery degrading over time as the phone is new. Also, I have recently flashed a custom ROM to my Radar at a point when stand by time was at 15 hours at 100% and after the flashed ROM the standby time went back up to 1 day and 15 hours. Something is not right. It must be an app.
Any other thoughts/theories or anyone else in a similar situation?
Discuss please so we can all learn something to hopefully solve this problem for other handsets too!
My guess: calibration. The system estimates your runtime based on previous runtimes, that's why it's getting lower. Did your phone actually ever run that long, btw?
yes it did. very very close. i was amazed.
and does it now actually run out faster? I have noticed this on my ipod. It used to tell me 1h battery remaining and it would run for another 3h until i got home and another 2h the next day (when I noticed I forgot to charge). Also, are you using your phone more now? The biggest battery drain is the display.
Remaining battery life is estimated as follows:
Immediately after being removed from the charger is based on previous usage charging.
After this time estimate is based on current consumption.
In the first week after hard reset or install ROM the period are recorded in the system.
After a year of use of personal phone (HD7) and trying different rom and different settings for gps, 3g, edge, and light i found that the consumer eating large battery . After a more detailed study will say that is the main consumer.
Thanks for your comment Ovi but this is not about how the consumer is wasting the battery by usage. The question I raised was about how the standby time varied at 100% after a hard reset and after weeks of usage at 100%. The stand by time decreased without using the phone after a full charge. That is what is puzzling me. In theory it should be the same stand by time no matter how long the phone has been owned and the rate of discharge is due to usage - agreed.
I have an epic that was working fine. I got a new phone so it sat with the battery dead for a little over a month. Now I gave the epic to my daughter and the battery is all wonky. It will charge up to 100%, but when I take it off the charger it will last anywhere from 20 minutes to 4 hours, which I got the other day with no use and airplane mode on. Now here's the wonky part. It only goes down to around 88% and than goes dead. If I plug it back in it says it has about 80% charge. But if I don't plug it in and just try to turn it back on it acts like it doesn't have enough juice. Now on this phone I'm on cwm 6.8.x or something like that and you can't wipe battery stats so I didn't try that. So I guess my next step would be to flash another recovery and wipe battery stats. I did just flash the peoples ROM 2.2 (I think was the number) just yesterday and wiped everything else for a clean install. Has anyone heard of or experienced this? How can I fix this? Will wiping battery stats work? Also, the battery was great, I could easily get all day out of it with average use just a month ago. Please and thank you.
Nothing?
This community is very small now since this device is old. You need to have patience regarding replies to threads.
Sounds like you need to replace the battery. Look on Amazon and eBay.
I haven't heard of this happening before, nor has it happened to me. Even though some would advise against it, i'd 'calibrate' the battery just to see if that would fix it. If that doesn't fix it, I have no idea.
Sent from my SPH-D700 using Tapatalk 2
From what I recall there was a lot of different opinions about the battery wipe in CWM.
If you google it there should be a video that shows you how to use it. I think you drain the battery until phone shuts off then charge it full, unplug it wait 10 minutes, charge it full, then turn it on and wipe battery stats. Then run phone dead again and charge again. Don't really want to charge it until after running it dead.
I used it a couple of times and it seemed to help but people say it has no affect because the battery stats are in the rom or something like that.
I also have heard that after you load a new rom you have to give it some time and the battery will get better.
I have never experienced what you are so sorry I can't help.
I would guess most would say its the battery buy a new one cause it sounds like the battery is only charging 20%.
I still have my stock battery after almost 2 years. It will get me through the day if I just make phone calls and text, but I have to keep a charger handy if I'm going to use the phone for other things. Sometimes my battery will drop if I reboot. It will be at like 30% and when I reboot it will come on with 15% and tell me to charge it.
They say the 1800ma model will work in this phone and I would check into that if buying a new battery.
Well good luck!
The battery was working fine two months ago. That's why its weird to me. Wiping the stats didn't help. I guess a new battery is in order. Grrrrrrrr
only1penny said:
I have an epic that was working fine. I got a new phone so it sat with the battery dead for a little over a month. Now I gave the epic to my daughter and the battery is all wonky. It will charge up to 100%, but when I take it off the charger it will last anywhere from 20 minutes to 4 hours, which I got the other day with no use and airplane mode on. Now here's the wonky part. It only goes down to around 88% and than goes dead. If I plug it back in it says it has about 80% charge. But if I don't plug it in and just try to turn it back on it acts like it doesn't have enough juice. Now on this phone I'm on cwm 6.8.x or something like that and you can't wipe battery stats so I didn't try that. So I guess my next step would be to flash another recovery and wipe battery stats. I did just flash the peoples ROM 2.2 (I think was the number) just yesterday and wiped everything else for a clean install. Has anyone heard of or experienced this? How can I fix this? Will wiping battery stats work? Also, the battery was great, I could easily get all day out of it with average use just a month ago. Please and thank you.
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only1penny said:
The battery was working fine two months ago. That's why its weird to me. Wiping the stats didn't help. I guess a new battery is in order. Grrrrrrrr
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If it was the original battery it already has some miles on it and if it sat for a month or two dead in the phone then it's most likely toast. You will get best results with li-ion batteries during the first 300 to 500 charges, so after a year or two the battery will naturally loose it's ability to hold a charge, that's just the nature of the beast. A new battery will do wonders!
The percentage that is displayed is usually directly correlated with battery voltage. So 3.200 V would represent 100% and I think it is 2.6 is 0%. So what sounds like is happening is the battery has a bad cell and jumps from say 3V or whatever is 80% right to some voltage below 2.6. A new battery "should" fix this.
kennyglass123 said:
The percentage that is displayed is usually directly correlated with battery voltage. So 3.200 V would represent 100% and I think it is 2.6 is 0%. So what sounds like is happening is the battery has a bad cell and jumps from say 3V or whatever is 80% right to some voltage below 2.6. A new battery "should" fix this.
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check that 4g isn't on or google talk isn't on. Google now is a big battery waster too. For unexplicable drains, check for a defective battery and if all else fails a clean wipe/install. I've had just about all of these issues on the 4 epic's we own.