Database Users

Battery Power Drops from 100% to 90% in about 3 mins?

Has anyone else seen this? From 100 to 90% the power just drops almost instantaneously but after 90% its normal.

Already been brought up, a lot.
Apparently when your phone charges up it stops once it reaches ~100% and begins discharging, even though it is still on the charger. People will turn their phone off after a full charge and charge for an additional 20min to an hour before they get another green LED. People have reported much longer battery life when doing this, but it is a pain in the ass.

Studmf said:
Already been brought up, a lot.
Apparently when your phone charges up it stops once it reaches ~100% and begins discharging, even though it is still on the charger. People will turn their phone off after a full charge and charge for an additional 20min to an hour before they get another green LED. People have reported much longer battery life when doing this, but it is a pain in the ass.
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Ahh interesting. I thought I was running into an old winmo rom flashing issue where if you flashed under 50% battery life you could never charge the device above that point.

Yea it sucks but it works... I just ordered an external battery charger since I have 2 batteries now so I don't have to do this anymore
Sent from my ADR6300 using XDA App

two_cents said:
Yea it sucks but it works... I just ordered an external battery charger since I have 2 batteries now so I don't have to do this anymore
Sent from my ADR6300 using XDA App
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Click to collapse
Hmm i tried and it acted the same way.

Apparently the HTC models act like older phones did back in the day. What HTC needs to do is put something on the phone face itself when new that says "CHARGE FOR 4 HOURS BEFORE INITIAL POWER ON FOR MAXIMUM BATTERY LIFE."
Once you do this once you dont have to keep doing it. I also powered on my phone the minute I got it and activated it without charging it first and I was seeing this issue until I did a power off charge. The phone runs from 6am to 11pm without an additional charge cycle in the day and that is a huge improvement for me. I was charging the phone twice to three times daily.

i've given her all she's got, but i believe she's gone

x10 has been on the charger for over an hour, still sitting at 1%, lol
when i went to bed at 2:40am, it was at 40%, woke up at 7:30am to 14%, got to work at 8:45am, it was at 4%. been plugged in since about 9am (10:19am now), and it's still at 1%. red LED is on, phone works, but shuts down shortly after unplugging it.
nothing running in the background, airplane mode on.
don't know if it's the battery, or the phone, but it's going back today. and i'll be getting something other than the x10. probably something other than android at this point (4th android device).
this is really weird since i have never had a battery issue up until this morning. the battery always lasted atleast a day an a half.

Is there really an os superior to android at this point?
webos is pretty killer but palm phones suck so far (though the hp pre 3 looks incredible)

at this point?
no
in the future for some current os?
yes
i'm not looking superiorority, just something else.
*UPDATE:
plugged the cable into a different usb slot, apparently that was the problem, lol. it's up to 4% now.

svtfmook said:
at this point?
no
in the future for some current os?
yes
i'm not looking superiorority, just something else.
*UPDATE:
plugged the cable into a different usb slot, apparently that was the problem, lol. it's up to 4% now.
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Click to collapse
I suggest you to charge in the wall socket. Usb is way too slow.
Sent from my X10i using Tapatalk

Its happen to me once a while especially when I change my Rom...What I do is turn off my phone and pull out the battery for few minutes and put it back and charge it..If the battery do not heat up when you charge then the battery is charging but if it become hot than usual repeat same procedure..

G-FACE said:
I suggest you to charge in the wall socket. Usb is way too slow.
Sent from my X10i using Tapatalk
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Click to collapse
yeah, but wall charging discharges faster. slow trickle charging is better for the battery.

svtfmook said:
yeah, but wall charging discharges faster. slow trickle charging is better for the battery.
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Click to collapse
This is not true. You can see how my phone is going charged in wall socket.
Sent from my X10i using Tapatalk

if you're going to use usb, then expect it to charge slow, also charging it via plug is better and doesn't discharge faster :\

G-FACE said:
This is not true. You can see how my phone is going charged in wall socket.
Sent from my X10i using Tapatalk
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Click to collapse
You're correct... the only reason it would appear to discharge quicker is because of the added heat as the phone/battery gets warmer when using the wall charger.
Otherwise the discharge rate would be exactly the same for both methods

Well...u could try "OFF mode" charging. 2.2. see that works or nt...

Svt try this, this works for me.
Flash back too 2.1 stock s.e fw. Go charge for 100% .
It should fix the problem.
When you flash custom rom clean bat stat. Note- dont clean bat stat again when your in a running custom rom.
I have this problem too on j's rom v12. im 100% charged, and try to plug again the charger its charging but the bat is decreasing, weird hehe.
Sent from my X10i using XDA Premium App

fiscidtox said:
You're correct... the only reason it would appear to discharge quicker is because of the added heat as the phone/battery gets warmer when using the wall charger.
Otherwise the discharge rate would be exactly the same for both methods
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It gets warm but not so much. And very important thing is when you charge in wall to turn off charging right after it reaches 100%. It's not healthy to leave it in.

G-FACE said:
It gets warm but not so much. And very important thing is when you charge in wall to turn off charging right after it reaches 100%. It's not healthy to leave it in.
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Click to collapse
it gets much warmer than by usb as the current is double....
That's why it would appear to discharge quicker until the battery cools down.

fiscidtox said:
it gets much warmer than by usb as the current is double....
That's why it would appear to discharge quicker until the battery cools down.
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Click to collapse
Exactly!
According to my experience, that is the only difference between charging via USB and on the wall. If you do the latter, it appears to be discharging faster at first, but after it settles, it holds the charge just as well.

Ok, you can see my battery temp when charging trough wall socket. When not charging the temp is about 34 degree. So wall charging doesn't make the phone too heat more than a usb.
Sent from my X10i using Tapatalk

I beg to differ..mine is much warmer on the wall charger than when charged via usb... Especially during the end of the charge

Rather dramatic title!
I was expecting an equally dramatic story, but pfft! haha

svtfmook said:
x10 has been on the charger for over an hour, still sitting at 1%, lol
when i went to bed at 2:40am, it was at 40%, woke up at 7:30am to 14%, got to work at 8:45am, it was at 4%. been plugged in since about 9am (10:19am now), and it's still at 1%. red LED is on, phone works, but shuts down shortly after unplugging it.
nothing running in the background, airplane mode on.
don't know if it's the battery, or the phone, but it's going back today. and i'll be getting something other than the x10. probably something other than android at this point (4th android device).
this is really weird since i have never had a battery issue up until this morning. the battery always lasted atleast a day an a half.
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Click to collapse
Do yu have custom rom?
Sent from a pyramid in Canadada

Battery Charging taking too long!

The S2 takes forever to charge the battery. Coming fron the iphone 4 i suspect this takes ay laeast twice as long to charge!
Considering the battery performance isnt that great, this is a double whammy!
What do you guus think?
Sent from my GT-I9100 using Tapatalk

Yeah, I noticed the same thing. I'm always charging it when I'm at home to keep it fully charged, in case I'm going out.

charging takes me about 3hours (from empty). It is stanrard time

Same here for charging. Between 3 & 4 hours. But battery life is getting better especially if i disable 3G and wifi
Sent from my GT-I9100 using XDA App

Im using nokia charger 1.2A and HTC charger 1A and also i have 0.7A all of them takes about 3 hours may be hardware bug?

I've been using a BB charger for it, and thought maybe that was the reason. Glad to know it isn't.
Sent from my GT-I9100 using Tapatalk

Yep, I confirm.
Charging takes around 3 hours.
I can use it almost 48 hours before it needs to be charged again. So it is not really annoying.

Stock SGS 2 with official battery charger and a full drained empty battery 3.5 hours to charge to 100% .
jje

tanseerj said:
The S2 takes forever to charge the battery. Coming fron the iphone 4 i suspect this takes ay laeast twice as long to charge!
Considering the battery performance isnt that great, this is a double whammy!
What do you guus think?
Sent from my GT-I9100 using Tapatalk
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Click to collapse
About 3 hours here which is fine, charging from the supplied charger connected to electricity mains. Are you charging via the USB connector? It will take a lot longer, something called trickle charge or something like that.

JJEgan said:
Stock SGS 2 with official battery charger and a full drained empty battery 3.5 hours to charge to 100% .
jje
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Click to collapse
Same here... It takes too long to charge...

Same here... It takes too long to charge...
No it takes the normal time but if its to slow for you dont drain it or sell it .
jje

I noticed this when my brother bought the same phone. His takes a ridiculous amount of time to charge, maybe 1% per 10 mins or so and it gets really hot while doing so.
Mine on the other hand doesn't get hot at all and charges at least 3 times faster than his.

please state charge state, ages, fast normal etc.
firmware and revison thanx

The charger shipped with my S2 has only 700mA...
especially if you are using the phone (worst: gaming) while charging it seems to get never finished . I guess the current drain doesn't left much for the charging.
So i'm using my old HTC-chargers (one AC=>USB and AC=> MicroUSB) witch both supplies 1000mA.... ~43% more in theory
Hard to say how big the advantage is in fact, but it makes a difference.
Also keep in mind, that a standard USB-Port supplies max. 500mA, depending on other USB-devices even much less. I also read that the charging result is "better" if you not using it in the meantime.
You can buy USB-Chargers up to 2100mA (e.g Amazon), but i have doubts that this will be improve the charging time because on the type-label behind the battery is written Rated : 3,7V-1000mA. Even more current wouldn't not damage the device (afaik!!!), the device or the battery could not charge faster.
Maybe somebody knows about what is meant by the the 1000mA exactly. Would be nice if the device could be charge a little bit faster.
Otherwise i am going to buy a 2nd battery with an external charger.
greetings

I found this on Android Forum
lotus49
USB charging is slow on the S2 as it uses trickle charging
"Trickle" is an exaggeration.
The phone can tell whether it's connected to USB or a mains charger. If the latter, it limits charge current to 650mA. If the former 400mA.
It will charge faster on the mains but not loads faster.
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Click to collapse

SLaRe said:
Same here... It takes too long to charge...
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I usually sleep more than 3.5 hours per day so I don´t see any problem in the charging time

JJEgan said:
No it takes the normal time but if its to slow for you dont drain it or sell it .
jje
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Click to collapse
My other cell phones are fully charged in 2 hours, more or less. And yes, I'm considering selling it, because I like to use my gadgets and the SGSII doesn't admit an intensive use without running out of battery, unless you have a second battery.
rj3005 said:
I usually sleep more than 3.5 hours per day so I don´t see any problem in the charging time
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Click to collapse
Yeah, I do sleep more than 3.5 hours per day and I try to charge it every night, but the problem is when the phone runs out of battery in the middle of the day and you don't have 3.5 to spend in charging it fully.

I think the iphone 4 is only a 1420Mah battery if I remember correctly while ours is 1650. Sure, it takes perhaps another hour to charge but I don't find it a big deal. It does appear that the first 50% charges faster then the second half as well but that could just be my imagination.
I have read that Samsung phones charge slower so that the battery life will be longer than that of those other phones such as HTC where the phone charges a lot faster. I'd rather get another year out of my battery and it take longer but do admit 3.5 hours does seem like a while.

this topic has been covered. teh SGS2 battery driver is capped at 650 mA for wall charging, 450 mA for USB charging. this code resides in the battery driver.
someone could compile a new kernel with this value raised. other phones like the nexus one charge at 980 mA for wall charger, 480 for USB.
samsung capped charge current, likely for heat issues, nobody really knows.

same. take long time to charge and heating if charge n gaming. the hottest spot at camera side
Sent from my GT-I9100 using XDA Premium App

[REQ] SpeedUp charging process

Hi people... i think that Samsung has got a little of troubles of making batteries and charging philosophies.
I has got two devices that are the last technology from samsung, the nexus s and the galaxy s2 right now.
The nexus s has got a very strange trouble (until now not fixed) that battery never reach full 100% state in charging. And much very very long charging time.
The Galaxy S2 reach 100% but takes too much time to charge. It's possibile that never one has think about modifying this?
Where we can start to mod this ? Inside the kernel? Inside bootloader?
I think it's not only a mine trouble

i think its the battery charger not the phone, which makes it so slow

simax said:
i think its the battery charger not the phone, which makes it so slow
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Click to collapse
even using apple 1A charger the charging time remains the same!

kawa636r said:
even using apple 1A charger the charging time remains the same!
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Click to collapse
anybody know a program or a system commands that can show how much amp is going to battery?

5 views, 4 replies, justshows how desperately we want this...

Mine finishes very quickly. about 1-2 hours when it's at 25 percent. And you cant fix charging. Remember that it is a big battery.

Ever tried using an adaptor for a device that has a lower rating than the adaptor? Ever heard that pop and the smell that follows?
Learn to be patient. Last thing you need is for the battery to blow up and destroy your phone.
protip: turn off your phone while you're charging with AC and not USB.
it could be your USB (and by extension, your PC) is not providing enough power to the USB ports. It happens.
My phone charges in 4 hours with AC when the phone is off. 5 when on.
6 hours on USB, phone off. 8 phone on.

It can be "fixed" in the kernel.
Samsung made it charge slower so that it charges better.
Faster charging = more heat = more dissipation, and potentially other problems.

Even though its a safety feature, its ridiculously slow. Phones takes AGES for a full charge.

these new phone are strange
my old i8910 HD charges full in like 30 min
and stays without a charge for 3+ days

Mine charges slower than htc but no too slow.. I'd say 2.5 hours full charge
Sent from my GT-I9100 using XDA Premium App

qwerty warrior said:
these new phone are strange
my old i8910 HD charges full in like 30 min
and stays without a charge for 3+ days
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Click to collapse
Are you serious? I guess it is humor. Either way, it made me laugh
Sent from my GT-I9100 using XDA Premium App

eRajesh said:
Even though its a safety feature, its ridiculously slow. Phones takes AGES for a full charge.
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incredibly true!

mynameisjon said:
My phone charges in 4 hours with AC when the phone is off. 5 when on.
6 hours on USB, phone off. 8 phone on.
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Click to collapse
too much slowly. I prefer changing battery every 2 years but have a more speedy charging, specially when i'm in middle of day (usually i charge it in the night, but sometimes can't last the entire day)

Rawat said:
It can be "fixed" in the kernel.
Samsung made it charge slower so that it charges better.
Faster charging = more heat = more dissipation, and potentially other problems.
Click to expand...
Click to collapse
I think that we must ask to someone to have look at kernel.... i will try to make it too

kryptoner said:
5 views, 4 replies, justshows how desperately we want this...
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lolololololololololololol

Do you guys not get more than 3-4 hours of sleep?
Do you guys exhaust the battery to the point where the phone turns itself off before plugging it in?
Can you not plug your phone in before you go to bed?
I always plug my phone in before I go to bed (usually with 10-20% remaining) and I don't remember a time where I wake up in the morning and the phone isn't 100%.
I'm not trying to be cynical...just curious what other people's routines are when 3-4 hours to charge a phone becomes an issue.
A complaint like this wouldn't even cross my mind.

I need a faster charge too. Not because I'm impatient but because the phone can use more current then it can charge, especially during car navigation.

Eclypz said:
Do you guys not get more than 3-4 hours of sleep?
Do you guys exhaust the battery to the point where the phone turns itself off before plugging it in?
Can you not plug your phone in before you go to bed?
I always plug my phone in before I go to bed (usually with 10-20% remaining) and I don't remember a time where I wake up in the morning and the phone isn't 100%.
I'm not trying to be cynical...just curious what other people's routines are when 3-4 hours to charge a phone becomes an issue.
A complaint like this wouldn't even cross my mind.
Click to expand...
Click to collapse
+ 1000
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Well, the issue here is obvioisly not when sleeping (and yes I slept 3 hrs last noght and got a full charge...bit when on car or @ work, lunch time etc...those little precious weird moments u get in a daily basis when u arent using ur phone and got a charger at hand....maybe it would be possible to make an app which would allow toggling fast charging or slow charging, that way we could have both....fast ( on the run) and slow (night) modes....that would be really nice......but wait....winmo had this remember?

[Q] 3 Hours of Charging = 30% Battery

I'm unsure what's wrong!!!
My phone has been fine, until it died today. I practice a 1 charge a day rule and I let my battery drain completely before I even think about putting it back on the charger.
Today, my phone died a littler earlier than expected, but that's okay because I was using my iPhone for most of the day. I got home at about 11PM and put my phone on the charger at 11:15PM. Here it is, 2:25AM and my phone only has 30% charge.
I've never noticed it charging this slowly before because I typically put it on the charger before I go to sleep and take it off when I wake up. This doesn't seem normal from ANY phone that I've ever used or troubleshooted in my life.
Why so slow? Is everyone's phone just as slow or should I be concerned?
Edit: I am using the charger that came with my phone in the same wall outlet that I've used since I got the phone. Nothing else is plugged into that outlet, either.

It would seem sensible to try a different charger and power outlet.
Sent from my Nexus 4 using xda premium

Your should be at 100% in that 3 hours. Try using a tablet wall charger.

With my phone, sometimes it charges in a flash, and sometimes it's charging for hours, idk why they do this.

drpepe said:
It would seem sensible to try a different charger and power outlet.
Sent from my Nexus 4 using xda premium
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Click to collapse
I don't have another charger. All I own is Apple products, unfortunately.
I've done other other outlets throughout the house before posting, but I wouldn't see why the one I'm using is compromised in the slightest. It's charged the phone fine since I've gotten it.

dralways said:
Your should be at 100% in that 3 hours. Try using a tablet wall charger.
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Click to collapse
The only Tablet I have is my iPad. I was thinking about just using the A/C adapter, but I was worried that that might mess something up with my luck. LOL.

You can't use the iPhone\iPad chargers as most of them don't comply with the USB charging standard (It will only charge at 500ma, the limit of USB charging).
You said it died quicker than usual as well? Sure nothing is running that drains the battery? Check the battery usage in settings after leaving it unplugged a while and see if you see anything that's using a ridiculous amount of battery.

I've had the same problem. Sometimes I plug mine into a wall charger and it reads Charging (USB) which may be your problem. Other times it reads Charging (AC).
Sent from my Nexus 4 using xda app-developers app

xrsxj said:
You can't use the iPhone\iPad chargers as most of them don't comply with the USB charging standard (It will only charge at 500ma, the limit of USB charging).
You said it died quicker than usual as well? Sure nothing is running that drains the battery? Check the battery usage in settings after leaving it unplugged a while and see if you see anything that's using a ridiculous amount of battery.
Click to expand...
Click to collapse
It's been off of the charger for about an an hour and a half and nothing out of the norm is draining the battery. Screen on time is at 40%, but that's because I was reading all of my sports news and stuff from my device.
Interesting thing to note: I'm at 79% on my Nexus 4 after about an hour and a half unplugged and doing regular browsing. I'm at 98% on my 4s with doing just about the same things as I've done on my Nexus 4, and even watching a YouTube video on my 4s. I've also had a great deal of voice calls and texts this morning to my iPhone. They were neck and neck when I first got my N4 on December 10th. Now, it's dying faster. The only difference is that I've installed Spotify on my Nexus 4 since then... Which isn't running.

Chinese281 said:
I've had the same problem. Sometimes I plug mine into a wall charger and it reads Charging (USB) which may be your problem. Other times it reads Charging (AC).
Sent from my Nexus 4 using xda app-developers app
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Click to collapse
It was reading USB last night! I thought that was normal, lmao... Thinking it meant "there is a USB cable charging it and not wireless charging."
Hm... The plot thickens, I guess.

Yeah it sometimes reads USB but if you unplug then plug it back in, it will change to AC. Not sure how to fix it but that's your problem right there.
Question: are you stock, rooted stock, or different ROM?
Sent from my Nexus 4 using xda app-developers app