I noticed this just recently that my phone/charger (not sure which one) emits a high pitched "hiss" when charging my phone. It's barely noticeable but you will certainly hear it in a quiet room.
Also, why does the phone continue to charge even if it's at 100 when you disable the battery full notification? If you unplug it in the morning the battery usage graph only starts at that moment.
Try enabling it and you will notice that if you leave it overnight and wake up tomorrow, the phone will have battery drop starting from when the battery full notification activated. Meaning it stopped charging at that point and battery graph will show usage from that time.
I think that hiss comes from charger and that battery full thing most likely is bug
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The only thing hissing at me right now is the missus 0)
Charger sounds defective.
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I'm serious with the battery full notification. Try it out. Notice the battery usage graph and when it starts monitoring even when the plug is attached.
No sound at all for you guys? Even the faintest hiss? I'll try to get it replaced with samsung tomorrow, I hope it's not related to my phone
Yes, it does!!!
I think (99% sure) that what hiss is the battery itself, not the phone nor the charger. I have one of these craddle/charger with a 2nd battery slot (like this one) and I always charge the spare battery without the phone and alternate between my batteries whenever necessary (phone always charged ). Not always, but very often, I hear the battery hissing not necessarily when the battery is fully charged. I always thought that it was a problem with the battery (it actually may be true) but it seems that it's normal (hopefully). Anyway, I'm glad to hear that I'm not the only one to notice that
No folks, you're not crazy - it really happens ! 100% guaranteed
no hiss from mine, i have never herd a any should from it. I'd say it is most likely shorting out.
angelomaldito said:
I think (99% sure) that what hiss is the battery itself, not the phone nor the charger. I have one of these craddle/charger with a 2nd battery slot (like this one) and I always charge the spare battery without the phone and alternate between my batteries whenever necessary (phone always charged ). Not always, but very often, I hear the battery hissing not necessarily when the battery is fully charged. I always thought that it was a problem with the battery (it actually may be true) but it seems that it's normal (hopefully). Anyway, I'm glad to hear that I'm not the only one to notice that
No folks, you're not crazy - it really happens ! 100% guaranteed
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Ok I really tested it just awhile ago and the hiss comes from the charger. It's loud and very audible. I'm going to have it replaced tom
Ill have to try out the phone later regardign the battery
You're right, it's the charger. I have a faulty charger as well but I won't say it's a 'problem' but more like an 'annoyance' since it's not lethal or anything.
Related
Anybody had this problem?
I've had my GS2 for nearly 3 months and all has been well. Coming from a Motorola XT720, EVERYTHING is better including the battery life.
Last week I noticed that when connecting the charger, it took a long time for the phone to register that it was connected, ie. it didn't beep, light up and show the charging icon. It was also slow to recognize that the charger had been disconnected. (The charging icon would stay on for some time after.)
I thought a re-boot would help and it threw up the big battery charging icon flashing alternately with the battery over heating icon! Even pulling the battery wouldn't stop the warning message unless it was removed for at least a couple of hours or re-booting via Home, Vol+ and Power.
Whilst all of this was happening, battery life plummeted. I normally get about 1-3% loss of battery per hour in standby but this increased to 5-10% per hour.
The phone has somehow regained its normal response to the charger being connected and disconnected but the poor battery life remains.
Its un-locked, un-rooted and running KF3:KE7:KD1
Any ideas before I do a complete reset?
I would get a new battery to start with, if you UK, 7dayshop.com have an 1800mah for only. £4.49 delivered.
http://www.7dayshop.com/catalog/product_info.php?cPath=777_12&products_id=111674
Thanks. I forgot to mention that I've just bought an Andida "2000"mAh battery from Mobilefun. It's only had a couple charging cycles but it's behaving exactly the same as the original battery, which confuses things!
It could be that the problem is effecting it our it's just not working at it's full potential yet.
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Even the biggest best know battery manufactures cannot make a 2000mah battery to fit the S2 without needing a replacement back cover, the new Samsung 2000mah needs one.
So the Andida "2000"mAh battery , is more likely to be around 1500-1800mah
Yep, if something sounds too good to be true, it probably is! Will probably return it and wait for the
official Samsung 2000 mAh.
Would still like to know what's going on with the sudden loss of battery life.
Sent from my GT-I9100 using XDA App
Since you have tried a second battery and the phone is acting the same way the fault must be with the phone, the charging socket is not loose or something?
Or maybe the phone charger is faulty, do you have a second to try?
It looks like you should try a reset before you seek refund/replacement.
hi I've heard plenty of times that you should charge your phone once you get it or charge overnight..is this true in anyway? I always go straight to playing with my new phone and then charge once battery dies..any thoughts on this myth?
Hi. I have heard a few different things about this. I think there is a thread on here I read about it as well.
First is that it won't matter because batteries no longer need to have that memory thing.
Then there was one that said let it deplete, charge it and then when the light goes green unplug it and replug it in. The light will go red for a few more minutes and then green. That will set the battery.
Then I also read that you shouldn't charge it completely or let it completely deplete because that will lessen the charge over time
The last I heard is that (and this was under the discussion about extended batteries if I remember correctly) the batteries are made so that the battery meter tells us it is dead even though there is still a little bit of a charge on the battery that way it doesn't do anything bad to it.
So I really think it depends on who you listen to. I did the let it deplete and charge it thing once so far. I get decent battery life. I tested it and got 10 hours out of it with medium usage and I usually get more when I toggle off the 4g when not using it but haven't timed how long for that yet.
Hope that helps until someone who knows more specifics posts something.
jonathan413 said:
hi I've heard plenty of times that you should charge your phone once you get it or charge overnight..is this true in anyway? I always go straight to playing with my new phone and then charge once battery dies..any thoughts on this myth?
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I don't think it matters any more. I plugged mine in after I did initial setup and let it charge to green light, didn't do any special bump charging or charging while off. The battery is designed to be used as is, without any tricks. Always overcharging to 100% or completely draining to 0% is probably worse than just using it normally and plugging it in when you notice it's relatively low.
There's a battery log that Android keeps regarding voltage and reported capacity that it uses to adjust the percentage display that you see on your phone. This changes over time as it gets a better idea of how the battery discharges, so built into your phone is a mechanism to make sure the reported capacity is accurate. If it gets "off" a bit, like if you see a huge spike up or down in battery capacity after a reboot, it's just adjusting itself.
But, as you know, Android users love to control everything by themselves, and not leave anything to some process behind the scenes. Hence the clamor for root so we can install whatever we want. So some people like to trick this adjustment mechanism by force charging the phone to full when it's off, which gives the battery capacity adjustment mechanism a "true" full charge to base its reporting on. Also, I don't believe the kernels in stock ROMs will charge to what it believes a full 100% charge is, to protect the battery life. Bump charging kind of gets around that, if I understand the process correctly.
Also, I don't charge overnight (lack of outlets in bedroom) so I make sure it's topped off before I go to bed. Even if it's not, it can make it through the night just fine, since it's not being used. So that's not that much of an issue anyway.
TL; DR: Just use it, plug it in when you need to.
I've had my Titan for nearly 5 months now. I am hoping Titan's battery isn't that crap as I think. However, since last 1 week what I've seen is my LED goes green to indicate that my phone is charged. It shows 100% in battery saver menu. However, if I restart my phone while it's plugged in the charger even after green LED, then after the reboot my battery is down to 89-91% mark. Either the battery calibration has gone wonky or the LED doesn't recognise the real battery levels.
It would really help if anyone who charges their phone during the coming week, could restart their phone while plugged in as soon as you see green LED and then see if anything changes in your battery stats?
I've noticed my phone does last an hour or two longer if I charge after this reboot till it's 100%. It could well be a placebo effect for me. But might help if others see the same too.
drupad2drupad said:
I've had my Titan for nearly 5 months now. I am hoping Titan's battery isn't that crap as I think. However, since last 1 week what I've seen is my LED goes green to indicate that my phone is charged. It shows 100% in battery saver menu. However, if I restart my phone while it's plugged in the charger even after green LED, then after the reboot my battery is down to 89-91% mark. Either the battery calibration has gone wonky or the LED doesn't recognise the real battery levels.
It would really help if anyone who charges their phone during the coming week, could restart their phone while plugged in as soon as you see green LED and then see if anything changes in your battery stats?
I've noticed my phone does last an hour or two longer if I charge after this reboot till it's 100%. It could well be a placebo effect for me. But might help if others see the same too.
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The calibration is a little wacked. Here is my example - i charge it for 5 hours and it says 100%... but it only lasts about 7 hours and i can tell throughout the day that it drains faster. If i charge it for 8 i get closer to 13 with heavy web and game use. At 5 hours it turns green also ... but it seems as though it still charges more when left plugged in longer.
Some apps also like wp7 news clips off about 1 to 2 percent battery everytime i run them. (it brings in feeds from 20 different websites (estimate, i didn't count) so it's worth it but i check it a lot.
Could be wrong but as far as im aware that over charge protection. Your phone shouldnt really be charged 100%. 90-95% should be the sweet spot. Generally when i first noticed that i used to restart the phone and charge it to 100% but my battery life actually got less than just letting the phone decide when its enough
My titan has recently been getting more and more life from the battery; upwards of two days. I turned off wifi and I got 4 days 4 hours, died just some hours ago (I don't game much, but I do listen to music).
I've been getting into the habit of charging it when it gets below 5%, not every night like I used to. So it'll be 30% at night sometimes, and it'll last me another day with light/average usage (as opposed to my previous mindset where anything below 50% is a no go).
It might not work to leave till last 5% especially for someone like me who travels a lot. Don't you fear at times that your phone might faint when you really want to use it? As soon as my phone goes in battery saver mode I plug it in. Maybe that 90% limit as a reason. Over riding it helped me but if I did not over ride the following cycle then my battery performance seemed awful! Very strange working indeed.
Sent from my TITAN X310e using Board Express Pro
If I plan on using it AND I know I'm going out where there is potentially no USB to charge with, I bring my portable USB battey charger and/or one of my other phones. However, I don't mind not having a phone with me at all times, so if it dies, it dies. Still, I just got it to last 4 days, so if you don't watch videos or play games frequently, charging every three days is unheard of for a smartphone!
The battery's health relies on charging it properly, and I value keeping this up over having it charged when convenient for me. Battery saver kicks in at 20% I think, and with battery saver, you'll get almost another day with light usage, so charging when battery saver turns on is probably really hurting your battery.
I generally unplug my phone when I notice the LED turns green (even if I'm going to bed for the night I'll unplug it). I have never had such amazing battery life with any other phone, but I also have never taken such lengths to improve battery life either.
Why don't you pick up a brand new HTC Evo 3D battery off eBay or something and use that? Its a 1730mAh battery compared to Titans 1600mAh and works fine in the Titan.
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Deep discharging a Li-Ion is worse for it than frequent charging. Temperature also is very important and I haven't noticed the battery get hot when sitting on the charger after the light turns green.
I'm wondering it would be okay to remove the Ace's battery and run it on the AC power adapter that charges the battery.
I have read about battery issues here since I got my Ace a few weeks ago. I'm a little disappointed that the charging circuitry isn't smart enough to stop current fed to the battery when the phone signals that it's fully charged. Because of that it's recommended NOT to do what most people probably do... leave their phones connected to the AC charger overnight.
But I haven't been able to find anything on whether or not it would be harmful to pull the battery so it won't overcharge, and run the phone directly from the AC adapter. I didn't realize the phone had such a great radio receiver. I'd love do for long periods of time what I've been doing briefly from time to time on battery... plug it into the audio input for my stereo and play the radio, MP3s, audio from YouTube videos etc.... but powered by household AC.
Anyone know if there'd be any issues doing that?
I tried it , doesn't work unfortunately .
Ace-ing all tests.
Well it was a thought.... Thanks.
My old nokia dumbphone can do that
Btw the phone is smart enough to not overcharge even if u leave it plugged overnight. Its called trickle charge or something, when battery is 100% full it'll stop charging, and when it discharge to 99% it'll charge again till 100% and the cycle continues. Moreover when phone shows 100% charged it was lying all along, to prevent sudden overvoltage. Maybe its just 95% when it showed 100% full
an0nym0us_ said:
Btw the phone is smart enough to not overcharge even if u leave it plugged overnight.
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Do you have any links to pages that detail testing that? I googled for quite a while and only came up with a couple hits that said suggested the opposite. But it seems Samsung and the Android OS would be smarter than that.
Maybe its just 95% when it showed 100% full
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That sure sounds right. I downloaded an app that displays battery charge by percentage increments. After charging the Ace until it gave an audible notification, within seconds the battery indicator dropped from 100% to I think 87% and stayed there for quite a while.
Well I found a stress test on the Galaxy Ace that says, "The battery contains a microchip that protects it from short circuits and overcharging."
But again I came up with this information saying, "... never put your phone for charging over night as this may hamper the battery’s life very badly..."
There must be definitive info out there on the phone's charging circuity. But I haven't found it yet.
As the title would suggest, my poor GS2 gets VERY hot when charging. Not all the time, but often.
If I charge from my PC's USB, it doesn't, but when I use a mains charger, it overheats.
When I finish my night shifts, my battery could be down to 20%, so when I go to bed, I plug in the phone, set it's alarm and pop it under my pillow, like I have done with every phone I've ever owned without issue. I wake up during the night and pull out the phone to check the time and almost leap out of bed because of how hot the device has become.
To make matters worse, it's discharged in battery power. This morning was the final straw, as when I checked the phone and it was red hot, it was also dead. I held down the power button and booted up the phone. It showed 15% battery left. I know people say that when it's charged, remove it from the charger, but it isn't practical. Besides, I've never had to do this on any other phone I've owned. This is unacceptable for me to rely on any more. Is this a common issue?
Or my fault because I have rooted the phone the tried custom roms/kernels/modems on it before?
X82X said:
As the title would suggest, my poor GS2 gets VERY hot when charging. Not all the time, but often.
If I charge from my PC's USB, it doesn't, but when I use a mains charger, it overheats.
When I finish my night shifts, my battery could be down to 20%, so when I go to bed, I plug in the phone, set it's alarm and pop it under my pillow, like I have done with every phone I've ever owned without issue. I wake up during the night and pull out the phone to check the time and almost leap out of bed because of how hot the device has become.
To make matters worse, it's discharged in battery power. This morning was the final straw, as when I checked the phone and it was red hot, it was also dead. I held down the power button and booted up the phone. It showed 15% battery left. I know people say that when it's charged, remove it from the charger, but it isn't practical. Besides, I've never had to do this on any other phone I've owned. This is unacceptable for me to rely on any more. Is this a common issue?
Or my fault because I have rooted the phone the tried custom roms/kernels/modems on it before?
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1) change to a diff kernel and see for the issue.
2) well charging from 10~20% to full 100% will lead to heat up the phone than charging from 50~60% to full 100% , hence also check for the same and see
Sun90 said:
1) change to a diff kernel and see for the issue.
2) well charging from 10~20% to full 10% will lead to heat up the phone than charging from 50~60% to full 100% , hence also check for the same and see
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I should have mentioned. This happens on any Rom and I've tried 4 kernels and still the same issue. Only thing I haven't tried, is going back to Samsung stock rom. Going to try that today, see if that solves it and report back.
Like Samsung told my wife "when it gets hot dial *#*#4636#*#* and note the battery temp".
Is it still under warranty
Sent from my GT-I9100
Well the PC's USB output would be limited to .5 A whereas your wall charger could provide 2 A. This might just be normal IMO, although I can't say that my phone gets ridiculously hot during charging. As others mentioned, I would check the battery temp.
The issue is already in his post and the solution as well.
1) The S2 has the tendacy to get hot. Its all very compact and there are no internal ventilators so the S2 dissipates heat to the rest of its body.
2) There is a Power difference between the charger and a USB cable. The charger gets hotter since it delivers power directly of a higher voltage and slightly higher amps then a usb port.
Your issue comes from one sole thing. Your bed. beds have very poor heat dissipating abilities, in fact, it has none. Considering no fresh air is delivered to your device, because it is stored under your pillow. Not to mention your pillow, the rest of your bed stop heat from leaving and it builds up. Ontop of that your heavy head is resting on it, pressing the pillow tight around the device.
in short, it has no way to relieve the heat. There is a simple solution of a non technical matter. Don't put the darn device under your pillow.
(the same counts to people that use there laptops on there beds pillow or covers without a proper cooling matt, before wondering why the hell there device shut down all of a sudden.)
The problem is you put your phone under your pillow. I made this mistake a few weeks ago and the phone was too hot but no problem when i charge it somewhere not under the pillow
I agree, I should stop doign that. But one question, if that's the case and the getting hot is normal, then why did the battery drop from 100% to 8% while plugged in?
Your cooking the battery, thats why.
i'll admit i charge my phone and leave it ON the bed so air still circulates but it did used to get hot. Not sure if any changes i've made such to things kernel, ROM, modem or undervolting has caused my change in temps but my phone never feels warm anytime day or night weather its on charge or not where as my partners phone (stock sgs2) does get hot using the same charging habits as myself
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Another odd issue. If I mains charge my phone or connect it to my laptop(not PC the PC charging seems to not effect it) the phone lags. Menus take longer and it really struggles to register my touches on screen.
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X82X said:
Another odd issue. If I mains charge my phone or connect it to my laptop(not PC the PC charging seems to not effect it) the phone lags. Menus take longer and it really struggles to register my touches on screen.
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For the AC charger this problem is known: if the charger is of poor quality it will generate too much 'noise' (ripple) which disturbs the electric field used by the touchscreen. However the original Samsung charger is of good quality and does not have this problem.
Experiencing these kind of problems when charging by a laptop USB port however is abnormal.
Interesting.
I bought an official Samsung charger off ebay, and it produces the same results. Much to my frustration.
Leaving it plugged in all night however was fine, I placed it on a shelf and the phone was actually cold when I woke up. I'm just worried the battery is ruined. It seems to drain quite quick.
X82X said:
Interesting.
I bought an official Samsung charger off ebay, and it produces the same results. Much to my frustration.
Leaving it plugged in all night however was fine, I placed it on a shelf and the phone was actually cold when I woke up. I'm just worried the battery is ruined. It seems to drain quite quick.
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Another problem i faced recently was the battery draining to fast, i was told to pull the battery out for atleast 3 mins, this lets the CPU etc cool off, since then i've had no problems at all and getting a good 12 hrs atleast on battery use
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