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My phone takes at least 5hrs to charge from 20%. I assume this is not normal. What are your usual recharge times?
Sent from my SCH-I500 using XDA App
amazingly fast, i'd say under an hour if i'm that low. Which isn't good either because it'll drain faster.
achandler2 said:
My phone takes at least 5hrs to charge from 20%. I assume this is not normal. What are your usual recharge times?
Sent from my SCH-I500 using XDA App
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MUCH much too long. Even with a 1A charger, or a 1200 mA charger, it takes quite a bit of time. However, you have to remember that the battery is a big 1500 mAh battery, so it takes longer than usual.
The D1 was a 1420 mAh battery, and could fully charge in a little over an hour with the aforementioned chargers. Not so with the Galaxy S. It takes easily over 2 hours, even with the chargers mentioned. Not normal indeed.
In your case, you're probably charging with the USB cable to a comp, which is your problem. This is the slowest way to charge a phone. Always use the original charger when possible (and even thats only rated at 700 mA). Other than that, get a higher rated charger, or use one from another phone. HTC is pretty good about bundling high rated chargers with phones.
Compared my my D1 and D2, this thing takes forever! I'd say 4-5 hours...
Mine takes a long time also but I wonder if its just the first couple charges
Its not just the first few charges, it is agonizingly slow. The only thing I don't like about this phone in fact.
My OC'd D1 can go from completely drained to completely full in less than 2 hours, fascinate takes about 4-5 hours on the same charger.
Sent using my Sammy Fascinate and XDA app
Mines maybe an hour and a half. Like said above, usb charging is a lot slower, use the wall when possible.
Sent from my SCH-I500 using XDA App
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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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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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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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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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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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
I recharged my Galaxy Tab 10.1 yesterday from a 15% remaining charge.
I powered it off and used the wall charger. It took almost 6 hours to charge to 100%!
Is this normal or is there something wrong with the battery?
Thanks!
Mine was slow at first too. But now seems to have gotten quicker.
luigig said:
I recharged my Galaxy Tab 10.1 yesterday from a 15% remaining charge.
I powered it off and used the wall charger. It took almost 6 hours to charge to 100%!
Is this normal or is there something wrong with the battery?
Thanks!
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What is the rating on the charger that comes with the unit?
The rating is 5V - 2A
Yep, noticed it took about 3 hrs to go 40% charging. Not sure why there is such a drastic difference from the Xoom which could charge from 10% to full in little over an hour with similar drain to GT.
Sent from my PC36100 using XDA Premium App
Ravynmagi said:
Mine was slow at first too. But now seems to have gotten quicker.
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Can you please quantify what quicker means?
We have a rather large battery in the device, while I agree 6 hours is abit much, it should be quicker at 2 amps.
On the other hand, I sit in on the charger at night before I go to bed. I am definately a heavy user as well, and the battery lasts me all day with atleast 30 to 40% left over by bed time (this includes a 1.5 hour commute each direction using Waze, the GPS, and wifi tethered to my phone, 2 gmail accounts polling every 15 min, web surfing throughout the day, and playing games during my morning and afternoon constitutions .. I know.. too much info)..
So I can live with a longer charge time, at least for now..
I charged my GT Tab completely before using it the first time. Then I drained it down to about 9%. I timed my first full charge from 9% to 100%, it took exactly 6 hours and 4 min. My Xoom charged in half the time. I am hoping it gets better like I have heard from different people.
dsEVOlve said:
Yep, noticed it took about 3 hrs to go 40% charging. Not sure why there is such a drastic difference from the Xoom which could charge from 10% to full in little over an hour with similar drain to GT.
Sent from my PC36100 using XDA Premium App
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i believe the xoom's charger is 16watts or more. i can't really remember, but it's got the highest rated charger b/t the xoom, tf, and gt10.1.
I think that's just wishful thinking on their part. How does a battery suddenly learn to charge itself faster. You make it sound like the battery is a muscle you can work out. The thing takes forever to charge but it also has excellent battery life. So as long as you don't find yourself in a hurry to travel without time to charge the battery should last you almost all day.
Sent from my PC36100 using XDA Premium App
I charged the device fully before use. Used it down to 10%, plugged it in and charged to full powered off. This took around 6 hours. The second time I charged it from around 14-15% It took about 4 hours. I have charged it twice more since from almost zero, and it's taking about two hours.
Remember the math:
7000 mAh battery
2000 mAh charger
That means from drain to full if the screen is off, about 3-4 hours. If you have the screen or device on and it's doing anything, it's using some of that incoming charge, so will increase to 4, 5, 6 or more hours to fully charge.
Gets even worse if using an aftermarket charger, say a 800 mah or 1000 mah charger like the iPhone or Kindle charger...can then take 10-14 hours to fully charge, hehe.
It's funny how people say it charges quicker after a while, when that's not logical, you just don't notice it as much going from 65% to 100% as you noticed when it went from 15% to 100% the first time, hehe
tycon said:
I charged the device fully before use. Used it down to 10%, plugged it in and charged to full powered off. This took around 6 hours. The second time I charged it from around 14-15% It took about 4 hours. I have charged it twice more since from almost zero, and it's taking about two hours.
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The xoom charges super fast, like from almost zero to full in around 2 hours. That's about all i miss right now
Sent from my PC36100 using XDA Premium App
jvs60 said:
The xoom charges super fast, like from almost zero to full in around 2 hours. That's about all i miss right now
Sent from my PC36100 using XDA Premium App
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Smaller battery=shorter charge, a 2 gallon gas tank is quick to charge too, hehe.... kidding.
But seriously, Samsung is bad with their charging. My Samsung Infuse and my Galaxy tab both take forever to charge.
tycon said:
I charged the device fully before use. Used it down to 10%, plugged it in and charged to full powered off. This took around 6 hours. The second time I charged it from around 14-15% It took about 4 hours. I have charged it twice more since from almost zero, and it's taking about two hours.
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Did I read it correctly that if recharged from almost 0 (e.g. <5%?), it takes only 2 hours to go to 100%? This seems counter intuitive.
luigig said:
Did I read it correctly that if recharged from almost 0 (e.g. <5%?), it takes only 2 hours to go to 100%? This seems counter intuitive.
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I think someone has a bad battery
verusevo said:
I think that's just wishful thinking on their part. How does a battery suddenly learn to charge itself faster. You make it sound like the battery is a muscle you can work out. The thing takes forever to charge but it also has excellent battery life. So as long as you don't find yourself in a hurry to travel without time to charge the battery should last you almost all day.
Sent from my PC36100 using XDA Premium App
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i think what happens is that as the battery calibration gets more accurate it finds where to quick charge and where to trickle in the appropriate levels.
I lost my Stock HTC Charger rated at 1 A output. I have read many threads and articles at batteryuniversity and misc places about how using a high amp output rated charger can deteorate cellphone (or any Li-Ion) battery over a period of time.
So I got this NewTrent USB charger, with two separate USB Ports: 1 USB Port at 1A and other at 2.1A
I plan to use the 1 A USB on a day to day basis and 2.1A port only when needed....
I checked on both the two Ports and here are the findings:
in 11 minutes time,
1A port charged only 3% of the battery
in same 11 min. time,
2.1A port charger 7% of the battery
I dont remember and have never measured the Stock HTC Charger in 11 minutes time. It would be greatly appreciated from all the xda-ians if they could check that in their respective HTC Ones and let me know so that I dont fry up the battery ....
PS - I read a lot about how cellphones only take the required Amps from a source but somehow, I found that to be BS...
Thanks again!
11 min stock charger 8% (20% to 28%)
Running ARHD 20.1.
Sent from my HTC One using xda app-developers app
The phone will only draw the current it needs, which is up to 1A.
It charges faster when the battery is more empty, so an 11minute test is useless unless you charge from the same percentage both times.
Also, HTC generally requires the data pins of the USB connection to be shorted in order to draw 1A. Otherwise it will draw 0.5A.
In my case, 49% - 52% in 1 A
52% - 59% in 2.1 A
In the case of charging faster when battery is more empty, I concur with you in the case if 90% and above (Slowest charging), however in my test case, 49% < 52%
It's not possible to charge more than 1 A on htc one. Only for a short time you can use more
Sent from my HTC One using Tapatalk 4
Good thread here: http://forum.xda-developers.com/showthread.php?t=2251742
himeshkaul said:
In my case, 49% - 52% in 1 A
52% - 59% in 2.1 A
In the case of charging faster when battery is more empty, I concur with you in the case if 90% and above (Slowest charging), however in my test case, 49% < 52%
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The battery % is just an estimation, and not always a very good one. So just charging for 11 minutes and looking at the delta is a very bad way to figure out it how fast it charges. The best is ofc to measure the current, but if you can't do that you could see how long it takes to charge from 0 to 100 with both chargers.
Sent from my iPad using Tapatalk HD
io53 said:
The battery % is just an estimation, and not always a very good one. So just charging for 11 minutes and looking at the delta is a very bad way to figure out it how fast it charges. The best is ofc to measure the current, but if you can't do that you could see how long it takes to charge from 0 to 100 with both chargers.
Sent from my iPad using Tapatalk HD
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its just gonna be useless without a proper kernel support
Whenever I'm on the road I use my phone a lot for navigation. The charger I have now can barely keep the current charge while the phone is navigating and I don't know if it's the charger or the old battery in the phone. My Note 3 is arriving tomorrow and I'd like to know which charger should I get that'll charge the phone even while it's navigating and with the screen on. Will any 2 amp charger do?
Thanks.
My Note 2 used to have the same problem even with a 2.1Amp charger. I found that the lead between the charger and the phone can make a big difference. I used the "'Galaxy Charging Current" app to check which lead was best. Not Benn on a long enough journey with the Note3 yet to see how well it stands up. GCC is at
https://play.google.com/store/apps/details?id=com.abmantis.galaxychargingcurrent.free
Whilst there are an increasing number of car chargers up to 2.5A now, I used an iPad one with success in the past.
Sent from my SM-N9005 using Tapatalk 4
The Note 3 draws only 1,200 mA (1.2A).
Therefore charger over 1.2A is redundant because the device only receives that much.
The stock charger is 2.1A. But like I said, phone only draws 1.2A.
Download the app mentioned above. It's very useful.
Thanks for the responses. Can you guys recommend a car charger brand?
CorruptedSanity said:
The Note 3 draws only 1,200 mA (1.2A).
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Not true, my charger has done less than 10% to fully charged in less than 1.75 hours. 1.2a would take 2.5 hours at least
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skally said:
Not true, my charger has hasss than 10% to fully charged in less than 1.75 hours. 1.2a would take 2.5 hours at least
Sent from my SM-N9005 using xda app-developers app
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I just checked Galaxy Charging Current app and it's saying 1800 now.
But that's because it's 100% full now.
Earlier it was 1200.
CorruptedSanity said:
I just checked Galaxy Charging Current app and it's saying 1800 now.
But that's because it's 100% full now.
Earlier it was 1200.
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Mine says 1200, and it's at 99%
Edit: turned on WiFi, Bluetooth, max screen brightness, streaming YouTube at full volume
I'll try the app again after it runs down some.
Sent from my Nexus 10 using xda app-developers app
I too use navigation and browser a lot while on road. My Galaxy Note2 was having pretty good battery life compared to Note 3 now. To survive, I got a 12,000 mh iNova power bank. Does a good job to survive.
Benjamin Mark
Sent from my Galaxy Note 3