I noticed this the first day I charged my EVO. In my quiet bedroom at night, I can hear a high pitched sound when I plug the charger into the phone. Sometimes the sound goes away after a few seconds, but I can always hear it as soon as I plug the charger in.
Sometimes it will remain there all night, and to get rid of it I just unplug it and plug it back in.
Have heard similar sounds on other electronics, but I don't think I had heard it when charging any of my other cell phones.
I think I have a special EVO that calls dogs.
Yep, mine gets noisy at about 98% full. That's because the switch mode regulator is being forced to output a higher voltage to get that last few percent and the frequency it switches at can sometimes be audible.
I get this as well, usually when battery is mostly/completely charged.
I upgrade to Netarchy's 4.3.4 havs-more sbc yesterday and heard this for the first time last night.
I woke up around 1am to hear what sounded like an old television turned on, that really high pitched sound that some can hear (some apparently can't). My phone was at 100% and trickle charging at 3 mA. I pulled the charger and the sound immediately stopped.
I've used SBC kernel's before, including Netarchy's 4.3.2, but I've not experienced this.
If I can squeeze a few more hours per day out of the Evo I don't mind buying a new battery every 6 months, but I don't want to damage the phone (or me).
Anyone concerned about this using SBC kernels?
Brandon168 said:
I upgrade to Netarchy's 4.3.4 havs-more sbc yesterday and heard this for the first time last night.
I woke up around 1am to hear what sounded like an old television turned on, that really high pitched sound that some can hear (some apparently can't). My phone was at 100% and trickle charging at 3 mA. I pulled the charger and the sound immediately stopped.
I've used SBC kernel's before, including Netarchy's 4.3.2, but I've not experienced this.
If I can squeeze a few more hours per day out of the Evo I don't mind buying a new battery every 6 months, but I don't want to damage the phone (or me).
Anyone concerned about this using SBC kernels?
Click to expand...
Click to collapse
Did you even read the thread? All these people have that problem without a SBC kernel....
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Its the goblins getting ready to pounce on you...
Sent from Darth Stewies' Evolution aboard the Death Star!
aimbdd said:
Did you even read the thread? All these people have that problem without a SBC kernel....
Sent from my PC36100 using XDA Premium App
Click to expand...
Click to collapse
I did indeed. I was making a note that I'm concerned since SBC is pushing the battery harder than stock. Also, I've had my Evo for a year and I just now heard this after swapping kernels. It seems a strange coincidence.
I'm hoping some other SBC'ers chime in. I'm hoping it goes way..
SBC wouldn't cause humming... that is the charging circuits in your phone... batteries don't hum. SBC may push it harder, but it wouldn't cause this. I have no hum using sbc
Sent from my PC36100 using XDA Premium App
Its just vibrations, I have tons of chargers, some do it some don't. There's nothing wrong with it. Unless it gets abnormally hot I wouldn't worry about it.
aimbdd said:
SBC wouldn't cause humming... that is the charging circuits in your phone... batteries don't hum. SBC may push it harder, but it wouldn't cause this. I have no hum using sbc
Sent from my PC36100 using XDA Premium App
Click to expand...
Click to collapse
Good to hear. Thanks!
This thread was opened long long before SBC even existed.
I only get the high pitch noise after my battery is fully charged. I do have a sbc kernel installed. My charger was making the noise, but as soon as I pressed the power button to wake the phone up it stopped, and started again when my phone went back to sleep.
Sent from my PC36100 using Tapatalk
Related
When I am talking on the phone and the low battery alert sounds (at 15%, or any % when it plays the low battery sound), it shuts down and cuts off the call. It did this on DK28 and now on EB13 also. Has anybody else noticed this? I assume it's a bug, but wouldn't surprise me if it was intentional seeing as how the camera doesn't function with the battery low.
My phone does the same thing. Running Bonsaai4all 3.0.0, EB13. Very annoying. However, once I restart the phone, I can make calls again. Odd indeed.
Sent from my SPH-D700 using XDA App
Mine doesn't do this and I'm on Bonsai 3.00..
Set From My 3.0.0 Bonsai Epic 4g
hybridsix said:
My phone does the same thing. Running Bonsaai4all 3.0.0, EB13. Very annoying. However, once I restart the phone, I can make calls again. Odd indeed.
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
My phone did this tonight for the first time while I was in the car. I plugged in the charger and turned it back on and on the lock screen it said I had 51% battery left.
Uggh. Sorry to resurect a somewhat dead thread, but...
It did it again to me. Dropped call as soon as the low battery alert sounded.
EC05 now, with the Bonsai 4.0 rom.
I've got a OEM battery replacement coming in the mail this week, so i'll try that to see if it makes any difference.
Has anyone solved the "Low battery" and "immediate turn off" problem yet?
Man this is the most frustrating issue EVER.
I'm running SRF 1.1.0
I have a 3500 mAh battery.
For some Farking reason, if the battery is under 50% and I get a call. It will RANDOMLY beep LOW BATTERY and turn off, in the middle of the farking call!!!
You turn it back on and it'll have 40+ % charge left!!!
AHHHHH!!!!!
After watching the 25 how to videos, I fixed almost everything that pissed me off, but this one thing drives me bonkers!!!!
I think that's the battery. Is its a yoo-bao from china (cheapie) or a good brand from a reputable source(sedio)? I have that problem with all the cheapies I bought on ebay.
Sent from my SPH-D700 using XDA App
It's not just the battery. My stock phone and rom does it too when the battery gets to 15%. When it reboots it has 20 or 30%.
This phone should never have been released with such a serious bug.
Sent from my SPH-D700 using XDA App
For "such a serious bug" it doesn't seem like many of us have it... I can keep a call all the way to 0%...did it a few minutes ago. Have you tried calibrating the battery stats?
Sent from my SPH-D700 using XDA Premium App
Now I dont normally let my phone get down to 0% but yeah i know i've gone WAYYYYYYY past even 10% and the phone hasn't done this. Stock battery not extended.
Kcarpenter said:
For "such a serious bug" it doesn't seem like many of us have it... I can keep a call all the way to 0%...did it a few minutes ago. Have you tried calibrating the battery stats?
Sent from my SPH-D700 using XDA Premium App
Click to expand...
Click to collapse
it's a cheapy battery.
However, it's also a bug somewhere in some software...
If it hits 15% when u are NOT on a call, the phone doesn't shut off. It's only when you're actually talking that it does it.
I'm surprised to hear STOCK people saying it happens to them... When I had my phone stock it didn't do this. I assumed it was a ROM issue.
I would try calibrating... I believe there's an actual app in the market to do everything for you. I'm fairly certain its free, so ill post a link, but if its not, I apologize, and well get a mod to take it out.
http://db.tt/NaGV1TB
J3ff said:
I assumed it was a ROM issue.
Click to expand...
Click to collapse
I love how people assume I sprinkle magic fail dust on my ROMs.
Charge to 100% with the device off and wipe battery stats in CWM.
Key word there, "Assumed"
Kcarpenter said:
For "such a serious bug" it doesn't seem like many of us have it... I can keep a call all the way to 0%...did it a few minutes ago. Have you tried calibrating the battery stats?
Sent from my SPH-D700 using XDA Premium App
Click to expand...
Click to collapse
Yes. I've calibrated my battery. I have seen a couple threads on the issue. I have repeated the issue on several roms and modems. Happens every time i'm on a call and the battery gets to 15%. That makes it serious since it is a phone after all. What if I was talking to 911?
Sent from my SPH-D700 using XDA App
k0nane said:
I love how people assume I sprinkle magic fail dust on my ROMs.
Charge to 100% with the device off and wipe battery stats in CWM.
Click to expand...
Click to collapse
Not just YOUR rom, I've read that this is a problem on all different ROM's including the stock one!
J3ff said:
Not just YOUR rom, I've read that this is a problem on all different ROM's including the stock one!
Click to expand...
Click to collapse
Right, but you said you assumed it was a ROM issue before you found out stock users had it.
k0nane said:
Right, but you said you assumed it was a ROM issue before you found out stock users had it.
Click to expand...
Click to collapse
well even stock is a rom right?
What I'm hoping for is I can figure out what you guys are running that doesn't crash on you when the low battery beep happens.
I think this is a battery issue. I never had this problem with stock battery and it happened twice on cheap 3000 ma battery I bought. Returned the battery and got another one (same kind) and this one works fine. I think this is a manufacturing problem with cheap batteries. When you look at reviews of more expensive ones online, you never see anything about this problem.
I have found the solution! It turns out that our phones, much like a simple light bulb, just don't function when they don't have enough juice...
Since I can't modify a light bulb to magically require less power, the only solution I have found is to provide the specified power level. I have applied this same method to my phone - when the battery gets close to that magic threshold, all I do is - get ready for this - charge the phone again!
Seriously, though - everything takes power to operate, and a low battery can't put out the same current and voltage as a fully- or even half-charged battery. This isn't a bug, it's just a fact of life (with current technology, anyway). Who here complains when their almost-dead AA batteries can't power an Xbox 360 controller? Most of us just replace them with fresh ones (or charge them) and keep going.
Sent from my SPH-D700 using XDA App
styles420 said:
I have found the solution! It turns out that our phones, much like a simple light bulb, just don't function when they don't have enough juice...
Since I can't modify a light bulb to magically require less power, the only solution I have found is to provide the specified power level. I have applied this same method to my phone - when the battery gets close to that magic threshold, all I do is - get ready for this - charge the phone again!
Seriously, though - everything takes power to operate, and a low battery can't put out the same current and voltage as a fully- or even half-charged battery. This isn't a bug, it's just a fact of life (with current technology, anyway). Who here complains when their almost-dead AA batteries can't power an Xbox 360 controller? Most of us just replace them with fresh ones (or charge them) and keep going.
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
This! Cheap batteries are never worth the money. I bought some cheap chinese rechargeable packs for my 360 controllers... they ALWAYS show low charge even if I just charged to full. Same deal with cheap chinese cell phone batteries.
I am sure the battery calibration is way off with one of the cheapies.
styles420 said:
I have found the solution! It turns out that our phones, much like a simple light bulb, just don't function when they don't have enough juice...
Since I can't modify a light bulb to magically require less power, the only solution I have found is to provide the specified power level. I have applied this same method to my phone - when the battery gets close to that magic threshold, all I do is - get ready for this - charge the phone again!
Seriously, though - everything takes power to operate, and a low battery can't put out the same current and voltage as a fully- or even half-charged battery. This isn't a bug, it's just a fact of life (with current technology, anyway). Who here complains when their almost-dead AA batteries can't power an Xbox 360 controller? Most of us just replace them with fresh ones (or charge them) and keep going.
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
Ok Mr. Smarty pants. You are not understanding the problem. It happens with the stock battery too.
The SECOND you hit 15% while on the phone and get the battery low warning, the phone turns off, MID CALL. You turn the phone back on and it will last hours, even on the stock battery.
If it hits 15% without being on a call, it does not shut down.
That is the real problem here.
This has happened to me once , what could be the cause ? Defective phone or software?
J3ff said:
Ok Mr. Smarty pants. You are not understanding the problem. It happens with the stock battery too.
The SECOND you hit 15% while on the phone and get the battery low warning, the phone turns off, MID CALL.
If it hits 15% without being on a call, it does not shut down.
That is the real problem here.
Click to expand...
Click to collapse
You mean just like a 360 controller can have enough juice to turn on, but not enough to actually play? Or how a flashlight will be too dim to be worth it when the batteries get low?
Would it be better if the battery ran like a champ right up to the second that it shuts off without warning? That would fix your problem - no notification when the battery is low (the sudden shut off can't be avoided until we find an unlimited energy source small enough to fit in our phones)
Your expectations are unrealistic. Just sayin'...
Sent from my SPH-D700 using XDA App
J3ff, it's likely the cheap battery. Here's why:
Charge level is a simple linear voltage function. Our phones consider 4.2V to be full charge (100%), and empty to be around 3.6V (0%). The voltage drops roughly linearly between these two values as charge is consumed.
The kicker is this: The voltage seen at the battery terminals is also affected by the interaction between the internal resistance of the battery and the instantaneous load, or current draw. For electronics buffs, this is the classic V=IR, and what happens is that the voltage on the battery will drop by IR in addition to it's unloaded voltage level due to whatever the stored charge state is.
Good quality batteries have a very low internal resistance, and will not drop much voltage due to an increased load. Crappy batteries are just the opposite, and even though they do carry the charge storage (most of the time) advertised, they are only suitable for low load applications.
What's happening is you have a battery with a horribly high internal R. When you make a phone call, the load increases A LOT -- transmit power goes way up. This if why phones get hot when talking on them -- they really suck the juice.
As a consequence, because of the high resistance, voltage from the battery takes a nosedive. At an "idle" reading of 50% (3.9V, thereabouts) you're probably dropping more than 0.3V when the load goes up during a call, the phone panics, and shuts down to protect the battery (LiIon doesn't like to be discharged below 3.3V, and can be damaged).
When you reboot, the high load is gone, so the voltage shows higher again, reflecting the fact that there is truly still plenty of charge stored and available. The battery simply can't handle gulps, but only slow sipping.
High internal R is one of the most common reject reasons from mfgs, and those batts are sold on the cheap to dealers and distributors in a secondary market. Honest ones then resell into appropriate application spaces where low-current is all that is needed. Most, however, are not that scrupulous, and sell right back to the same market, leaving behind puzzled and unhappy customers.
Sent from my mind using telepathitalk
Ok so i woke up this morning to find that my vibrant was heating up to 84 degree celcius which is like 183 degree farhwenheit. I burnt my fingers while touching the phone this morning (not literally). And here is what happened:
I usually sleep by charging my phone and putting it under my pillow before sleeping. I plug in my headphones, use miui music player's sleep timer and sleep. I didnt have this problem before. Here is my config:
Project - V Latest
Rooted
No Battery Hog Apps (Normal Drain = 2MA)
Bali - Capped
Running at stock frequency (No overclocking)
The only change I have made before this started happening is changed to bali kernel. Could that be the problem. Is it normal?
have you oc'd at all, how long has this issue been going on?
generally speaking i have noticed that when i had my vibrant oc'd it would heat up alot when charging, my reccomendation is to set a setcpu profile to throttle your cpu speed when charging. I had mine throttle back to 800MHz while charging and the heating issue was severely diminished. Never let your phone charge while the cpu is oc'd beynd 1ghz that has always given me heating issues.
Hope this helps
-Cheers
shreddintyres said:
have you oc'd at all, how long has this issue been going on?
generally speaking i have noticed that when i had my vibrant oc'd it would heat up alot when charging, my reccomendation is to set a setcpu profile to throttle your cpu speed when charging. I had mine throttle back to 800MHz while charging and the heating issue was severely diminished. Never let your phone charge while the cpu is oc'd beynd 1ghz that has always given me heating issues.
Hope this helps
-Cheers
Click to expand...
Click to collapse
Thx for the reply. I forgot to post that i wasntr overclocking at all. And its not undervolted as well. Thanks for the reply anyways
Any bali kernel gives my phone a perpetual fever. I've taken all bali downloads off my sd and will not use one anymore I don't care about what minimal if any battery life it's supposed to give you(although I never noticed any battery life increase) if it fries my phone.
Sent from my SGH-T959 using XDA Premium App
Overstock, bullet, and now maybe dragonmodz w/smartass are the only ones I trust for reliability now.
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Wait, where do you find MIUI sleep timer?
Sent from my SGH-T959 using XDA App
same exact thing happened to me, ran project-v and on overstock at the time, i honestly thought the internal components would have melted from that heat. Only thing that happened was the battery was completely drained
The first time I had used Bali on a ROM, I thought I made a bad flash and my phone was throwing a feverish fit.
bali is good and all, but all that overheating scares me.
Typically that happens to me except I don't run any apps while asleep. I've taken it to tmo and they said it's fine. If anything my batt smells like what the batt itself is made off. More along the lines of something from the batt has leaked. However the phone ends up overheating on a simple wordfued or words with friends play action. At times the phone ends up turning itself off.
It may be because you have the pillow over the phone. I left mine charging once with a pillow over it by accident and it got real hot.
jordanjf86 said:
It may be because you have the pillow over the phone. I left mine charging once with a pillow over it by accident and it got real hot.
Click to expand...
Click to collapse
Did same thing i burnt my finger on screen lmao i jus pulled out battery an put fan on it
Sent from my SGH-T959 using XDA Premium App
i forgot to mention that when i found my phone is was under my pillow so im positive that its the pillow that's causing the overheating
darksandz93 said:
i forgot to mention that when i found my phone is was under my pillow so im positive that its the pillow that's causing the overheating
Click to expand...
Click to collapse
That's most probably the case. Its happened to me multiple times were ill fall asleep while using my phone and I end up waking up to it burning my skin (not literally) after getting really hot somewhere under me and my covers. Lolol
Sent from my T959 using XDA Premium App
Wifi overheating
Hi people.
I flashed Bali 1.8.8 UV and noticed my Vibrant had severe overheating problems when wifi is turned on. Not working as you may know, but with a minimal network traffic. I have switched to Bali X, but I have heard that all the Bali kernels suffer from overheating.
Please, tell me a kernel that has great battery life and doesn't have this inconvenience. My battery drops badly with this one!
Thanks a lot.
Ecotox's kernel is save way more battery IMO!
Sent from my SGH-T959 using XDA App
What thread? Can you provide me a link? Thanks!!
I apologize I haven't replied its been a while since I've been on here, but here's the link for ECOTOX's kernel
http://forum.xda-developers.com/showthread.php?t=1049894
Hey guys,I have seen some things with my GS2's battery that aren't exactly what you'd call normal.Let me explain:
Today,I plugged my phone it at about 45% battery for some minutes(I was gonna be away from home for a long time,so I wanted some extra unneeded juice) and unplugged it just before I left the house at 58%.I was en route to the bus station when I checked the time(I was late as always! ) to see I had 59% battery.After some twenty minutes,when I reached my destination,I took my phone out of my pocket to make a call just to see that my battery was at 61%! After that all was normal.
This was the third time I experienced something like that.First time was more impressive.I went to the cinema with 38% battery and left with 50%!All without plugging the phone anywhere!
Now,I know I shouldn't be complaining about something like that,but something must be wrong here.If everything wrong was like that I'd be a happier man,but just sayin'.
Any ideas?Or is my phone unique in that aspect?
Sounds like bad calibration to me. Let the battery drain till the phone turns itself off, then charge it (while off) till full.
Sent from my Transformer TF101 using XDA Premium App
Me wants . With that said its probably bad calibration
Sent from my iPad using Tapatalk app.
Definitely calibration problems here. The screenshot below explains what happened with my SGS2. This was the first charge out of the box. Plugged it in and at first, the charge went up steadily. Then, BOOM, 100%. Disconnected charger, and after some time noticed phone was off - battery was at 0% in under 2 minutes.
It's OK now. I'm getting 2+ days of use on a single charge.
same here. my battery-percentage also raised once while using the unplugged phone. then I turned it off and charged it. since then everything is fine.
Too bad.I thought I was like the guy from Infamous or something!
Thanks for your replies guys.Will callibrate and report.Although the Android OS drainage persists still...
Sent from my GT-I9100 using XDA Premium App
The charge level on my SGS2 is going up as I am typing this. It is not connected to anything.
TWiTCommander said:
The charge level on my SGS2 is going up as I am typing this. It is not connected to anything.
Click to expand...
Click to collapse
Then I am not alone...
Sent from my GT-I9100 using XDA Premium App
stange... :/
When I put my phone on the charging orb, sometimes the screen comes on and I get the notification sound to indicate it's charging, sometimes I don't. Either way it charges. What gives?
ahandlen003 said:
Try it with ringer on vs silent. Your welcome.
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
No, that's not it at all. My ringer is always on, yet I get the notification about 20% of the time and no notification about 80% of the time.
If I had to guess, it has something to do with charge level and time since last on charger. If the charge level is below a certain amount (60% or so, don't know the exact #) AND it's been awhile since the phone was on the charger, I get the notification almost evry time. If the charge is high OR the phone was recently on the charger, I get no notification (but it still charges fine).
Google probably did this so that it doesn't disturb you when you put it on the charger for a touch up during the day. I just want to know what the exact parameters are and if there's a way to modify them.
ahandlen003 said:
More importantly are you on a custom rom or stock?
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Completely stock.
I saw another site that said the notification plays anytime the battery is under 90%.
But that can't be right either. Yesterday I got the notification when I put it on and it had 91% at the time, later in the day I put it on the charger at 59% and no notification.
It seems random.
Mine does it too and when the sound comes on it only plays a millisecond of it sometimes and plays the full charging noise sometimes ... I'm rooted on project E.L.E with faux kernel so I figured it had something to do with that so didn't think too much about it
Sent from my Nexus 4 using xda app-developers app