Last night I did something that may have been stupid. After my phone shut down on low battery, I restarted it twice following successive shutdowns. I did this to ensure the battery was completely drained because battery life has been noticeably shorter lately. After plugging into the charger, the phone did not begin charging and would not power on. I had to do a battery pull to get things working again. Is this a normal side effect of my ignorant action in draining the battery?
Unrooted, stock other than a few mainstream apps.
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Yes this can be considered normal. There has to be enough battery for the phone to switch into charging mode and it appears you didn't have enough
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Thanks. That makes sense.
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i made this post because people might be wondering about how to charge their phones.
(i say these things from experience so if different for anyone then let me know)
make it a habit not to charger until its at least 15% or less. i always charged my g1 and left it plugged in even at 100 and after weeks the battery life went to hell. i went through 3 batteries that way.
Also try not to use the phone while its charging. i cant really explain what the hell causes that but i know from experience of two other phones that the phone overheats and messes up the battery. so that means avoid over-night charging. i charge mine either before i go to sleep of first thing when i wake up.
also when ur charging ur phone, DO NOT put it under anything, like between a pillow the bed. ur phone will overheat like to the point of too hot to touch. also from experience.
Thanks man,that why my old battery started die'n so fast
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yeah i never charge phone unless battery is on red and once fully charged unplug
Also try battery calibration. Its amazing!
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Yeah battery calibration worked great for me
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What do you mean by Battery Calibration?
What is battery calibrabration
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Streetz180 said:
What is battery calibrabration
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Click to expand...
Click to collapse
I normally do this to calibrate battery:
1. Charge to 100 % with phone on
2. Unplug and turn off
3. Charge to 100% when off (i normally leave it for 10-15 minutes)
4. Then unplug, turn it on, then after fully booted turn it back off
5. put it back on charger till it fully charges again
6. boot into recovery and wipe battery stats
now use your phone as normally and give it 3-4 full charge cycles till the battery is properly calibrated.
Battery calibration is a app on the market. Check it out! It saves you from having to go into recovery and wiping battery stats
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i follow all of this and i usually get around 20 hours of battery life. and ive only calibrated my battery once.
I'm curious I recalibrated my battery to last longer I usually lost around 7-10 percent over night. Now after calibration I only lost 3% and this is what my consumtion was and was curious is this normal or good. I'm getting 43% cell standby, 40 phone idle, 15% display and 2% OS. I was going to post a pic but is not letting me right now.
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With my stock rom, I usually use about 3% over-night when the phone is shut-off.
So, either the stock batteries suck, or "off" doesn't really mean "off." I'm assuming the latter, since we have to pull the darn battery to get a true reset.
3% overnight sounds reasonable. Same here.
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zuriken said:
With my stock rom, I usually use about 3% over-night when the phone is shut-off.
So, either the stock batteries suck, or "off" doesn't really mean "off." I'm assuming the latter, since we have to pull the darn battery to get a true reset.
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Maybe you have fast boot on. Or it sucks up a lot of juice just turning it on
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codyperez86 said:
Maybe you have fast boot on....
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Sure do (enabled by default). I'll switch it off tonight and see if the percentage changes in the morning.
so is fast boot something we want on or off?
I look at fast boot as hiberateing. Take that off and I believe your phone will actually shut down all the way. Fast boot is fast boot. After shutting it off and turning it back on and starts up quicker. Sounds like something that would suck a little bit of battery life over night.
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With fastboot disabled and the phone shut off, you should see 0% to maybe 1% battery drain overnight.
henrybravo said:
With fastboot disabled and the phone shut off, you should see 0% to maybe 1% battery drain overnight.
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Yeah I think its from powering down and back up that's it.
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To recalibrate it I just powered up to 100% powerdown, unplug chord reboot into recovery go to advance and go to wipe battery bin. Reboot amd you should have a more accurate battery %. You should 4.2V at 100%
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3% is more than reasonable.
I lose like 1% per ~2 hours standby with active 3G data connection, and gmails pushing emails.
I heard that leaving the phone plugged in for a long time can affect the battery's performance. Is it bad for me to leave my phone plugged in for 24 hrs+?
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tjamzt said:
I heard that leaving the phone plugged in for a long time can affect the battery's performance. Is it bad for me to leave my phone plugged in for 24 hrs+?
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keeping an li-ion battery fully charged all the time is not so good for it, not because it can become "overcharged" but because your not using the battery it may suffer from capacity loss, the ideal environment for the battery would be to let it discharge to about 50-20% then charge it again till full at least once in a while so that it is maintaining its cycles and capacity. :good:
OK thanks.
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I always charge mine for a couple hours before I go to bed that way I don't leave it overcharging. Throw it in airplane mode and go to bed that way ur battery doesn't drain too much overnight.
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Also is it bad for the battery if you reboot a lot?
Pretty sure the phone's charge circuit isn't going to do anything to damage the battery. Once it's charged, it may go to a tiny maintenance trickle charge, but you will be fine. Rebooting also will just drain your battery, not damage it, as it uses a lot of CPU and I/O to get Android fully up and running.
tjamzt said:
Also is it bad for the battery if you reboot a lot?
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Not bad for the battery but I guess you'll have to charge it again sooner
Nice thread on Li-Ion batteries http://forum.xda-developers.com/showthread.php?t=669497
So on a daily basis I should run the battery down to about 20-40%, and then charge to 90-95%?
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tjamzt said:
So on a daily basis I should run the battery down to about 20-40%, and then charge to 90-95%?
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I run mine down to 5% and charge it to 100%
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it cuts off when its fully charged so i wouldnt worry, also you dont have to cycle charge li ion battery's even if you only run it down to 60% and charge it, it wont do it any harm, infact they like to be charged willy nilly as its keeps the ions jumping about or something, haha
After I upgraded a while ago to stock ICS 4.0.4, I noticed that I no longer get an audio notification when my phone is finished charging. Also, the status of my battery usage resets when I turn the phone off. Shouldn't it display total battery usage accumulated until the phone is plugged in to be charged?
Anybody?
The sound I haven't paid much attention to, I don't even remember gingerbread having a sound once the phone is fully charged.
As for the battery status, far as I know, if you turn off your phone or reset it, the stats will reset.
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When I first upgraded I used to miss the sound, but after a while I forgot it was there until you mentioned it. And don't the battery stats always reset after reboot? They couldn't be very accurate if they didn't.
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Hi guys,
I got a mt4gs a week ago and it charged the battery at first but then after 3 days of use i connect it to the charger but still the battery is discharging, I got another battery but still its discharging while connected to an ac adapter. I am rooted and running miktouch 0.5. should I return the phone?
If it's doing the same thing while connected to your computer thru the USB, I have to admit it DOES sound like a mechanical issue.
That was happening to me awhile ago too. Mine was due to the USB charging pins being bent. I took the phone apart and was able to bend them back using a safety pin.
You also might want to try a different cable.
As a precaution, I bought a couple ankers and wall charger so I always have a spare.
Good luck.
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got a new charger but still didnt work, going to return it.
Also have a weird battery problem on mt4gs.
Battery seems to drain while connected on AC, whether it's being used or not, but a restart shows it with more power. e.g. if I restart @ 52% when I restart it says 79%. if I restart again it may be 32% or another almost random number. sometimes 17%, 82%, 92%. I've tried all sorts of apps and wiping batter stats in cw.
Once I left it off and plugged in and the led turned from orange to green. But power on showed 92%. I tried two different batteries, it seems to be the same.
I worked properly before and I can't seem to remember when I realized it was doing this. Yesterday I also noticed, when I pull the battery for a while date and time resets. Dec, 1 1974 I think, Internal battery dead?
Anyone have suggestions?
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I'm also having that problem with mine. Its in the cm9rc buglist, affecting users of some aftermarket batteries. I have the Hyperion 3500. Suspecting battery firmware issues...its always been a little strange. Reporting %100 for way too long, then declining normally for a while, then dropping from %30 to nothing pretty rapidly. Now on CM9 rc reporting is just random and inaccurate. Time to spend for an Anker. Ready to get rid of this heavy double-thick battery anyways. With consistent improvements in battery life I don't think I need it anymore.
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Hmmm. Although I'm on virtuous Inquisition now. I was having these issues on the stock tmo from which prompted me to upgrade. Was on same virtuous Inquisition before that but went to stock because I just love the Genius button. :what:
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I swapped out for the highly regarded anker batteries and my reporting problems have gone away. Battery drain now reports accurately.
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Hoping that it would resolve I finally got a pair of anker with the charger. My problems didn't go away. Just the anker running 15° cooler
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