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i drained all juice of the battery and put to the charge and it took 3 hours for full charge. is this normal
Its normal, it takes between 2:30 and 3...
Chill dude lol
JD
Sent from my Samsung Galactic Beast S II
Haha his like wtf.... That cant b right
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I've just charged mine from 7% to 100% and it took a shade over 3.15hrs via plug charger.
Did you have the phone On or Off to charge?
JupiterDroid said:
Its normal, it takes between 2:30 and 3...
Chill dude lol
JD
Sent from my Samsung Galactic Beast S II
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Arron123 said:
Haha his like wtf.... That cant b right
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guys it was 1h 15mins on htc desire. battery draining time feels same but 3 times more charging time.
Mine was left on when charging, but next to no use when charging. Never turned a phone off to charge.
Samsung chargers usually have an output of 700mA at 5v while HTC's have 1A at 5v meaning HTC's will charge faster.
Charging batteries faster with higher amperage chargers does save time, but the batteries also usually discharge faster and will degrade over a shorter period of time than would be the case when using more "mild" chargers with lower amperage.
If you plan on charging your phones at night while you sleep, choosing the lower amp charger will give you better battery life (and you won't have to worry about the fact that it takes 3 hours to charge).
Quist said:
Samsung chargers usually have an output of 700mA at 5v while HTC's have 1A at 5v meaning HTC's will charge faster.
Charging batteries faster with higher amperage chargers does save time, but the batteries also usually discharge faster and will degrade over a shorter period of time than would be the case when using more "mild" chargers with lower amperage.
If you plan on charging your phones at night while you sleep, choosing the lower amp charger will give you better battery life (and you won't have to worry about the fact that it takes 3 hours to charge).
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Very well explained!,
Quist said:
Samsung chargers usually have an output of 700mA at 5v while HTC's have 1A at 5v meaning HTC's will charge faster.
Charging batteries faster with higher amperage chargers does save time, but the batteries also usually discharge faster and will degrade over a shorter period of time than would be the case when using more "mild" chargers with lower amperage.
If you plan on charging your phones at night while you sleep, choosing the lower amp charger will give you better battery life (and you won't have to worry about the fact that it takes 3 hours to charge).
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I remember when the SGS was first announced it was put across strongly by Samsung not to charge the phone overnight.
They said it was wrong to leave the phone connected when fully charged.
I have not heard anything this time for the SGS II.
Guys my SGS2 is taking around 4+ hrs to charge from around 5% left. Is this normal.?
Yep takes 4 hours here too
Sent from my GT-I9100 using Tapatalk
What's the rated output on the wall charger?
I think this is by design as the phone already gets extremely hot when pushing the CPU (gaming etc).
I believe this can eventually be changed with custom rom/kernel.
hycian said:
What's the rated output on the wall charger?
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5v @ 0.7A, by the looks of it this is normal.
thanks for responce peps. Never had a phone that took so long to charge.! Normally about an hour which is why i thought i may have had a problem with the handset.!
S2 stock Optus KE2 with it remained turned on with wifi, email checking etc using Energizer XP8000 battery as power source for charge went from 24% reminaing to 100% charged in ~2hrs. S2 internally seems to limit it to <700mah charge rate.
Find a Iphone4 charger or something similar it will give you 5v @ 1.0A, charges quite a bit faster, I use that at work then the slow .7 at home.
my XP8000 charges at 1000mah but S2 will limit it to 700mah
I think you could charge the battery alone in a dock. There it should load with the full 5V and 1ah..
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Ah forgot about that. But it's kind of pain removing that battery cover.
connectandroid said:
my XP8000 charges at 1000mah but S2 will limit it to 700mah
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Anywhere you can back this up? I seem to have faster results using a 1.0 vs .7, showing that it is getting more power.
It's been mentioned a few times across various forums. But i'm just going by my experience.
It also takes me around 4 hours to fully charge from below 5% battery. However, if I turn the phone off whilst it charges, goes slightly quicker. Obviously.
Hi,
I think the recharging time is quiet normal for such a phone (and battery).
I had to charge the battery of a friend's phone these days with my notebook.
And it took some hours from 30%. (HTC DHD)
About the same for my SGSII.
I think thats normal.
what would we do without electricity?
Dead phone that is fully discharged battery phone off stock charger to 100%
sub 3 hours .
jje
Changed handset yesterday. today charged new phone from 5% and it took 3hrs 4mins. So it looks like i may have had either a dodgy charger or batt.
I am charging with supplied charger(5V / 0.7A) ...
During the charging I turn off my phone but the charging time is still 3-4h -.-
Well I bought the Galaxy S3 on the first day of the UK launch and depleted the battery to 0% then charged with the original 1 Amp charger from 0%. I had noticed that this takes a very very long time, around 8 hours. The battery life after charging however is substantial and very adequate.
On the second charge after depletion once again, I decided to use a Griffin 2.1 Amp charger which I had used to charge the hefty Galaxy note with. The Galaxy S3 charges at a much rapid rate and takes around 2-3 hours to reach 100% from 0%. However I have noticed that the battery life depletes a bit faster, Is this due to my imagination or is a 2.1 Amp charger not suitable for this phone as it was with the tablet-like Galaxy note.
Also note that I tried to charge my HTC one X with the 2.1 Amp charger and it charge very slowly, while the original HTC charger has a much lower ampage than 1 Amp
Hmm I have been using my galaxy s charger 0.5amp and it has been charging pretty slowly but seems to deplete faster.
I have been actively using for 50min on wifi now and 85% left. Which seems a bit quick for me. I will try charging with the standard 1amp tonight and see.
Now fast are you depleting at?
I measure my battery life by checking the screen on time just before the death of the charge which was 5 hours on the original charger, with the quick charger its 4 hours. My Galaxy note has no change in battery life weather you any ampere chargers. Also the general battery percentage seems to run low faster anyway on the galaxy s3 using the fast charger.
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I shall try the standard 1 amp charger the next time my phone depletes
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Just wondering, since the S2 had a limit of 650mA for charging, does this apply to the S3? You guys make it sound like it charges slow as well...
Galaxy s2 does charge very slow for me aswell. Compared to htc phones the Galaxy s 2 charges painfully slowly. Now I regularly use the 2 amp charger on my galaxy s3 and have seen a huge improvement in charging speeds. It charges at around 2% per minute and still lasts around 4 hours of screen time for a full charge.
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I noticed that I can only charge fast using original charger. While charger with shorted usb data + & - (ie. htc 1A charger) will not activate fast charging.
You can verify by going into *#*#4636#*#*, Battery, using ori charger will show AC while HTC charger will show USB
I think samsung made some changes to the microUSB pinout
xifer said:
You can verify by going into *#*#4636#*#*, Battery, using ori charger will show AC while HTC charger will show USB
I think samsung made some changes to the microUSB pinout
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Thanx for the "shortcode". Where does one find those?
Also from reading about the MHL to HDMI cable from older devices not wotking, it does in fact seem that Samsung have changed the microUSB pinouts (although my Nokia 1.2A charger shows AC in that battery "menu").
Mine charges from about 10% to full in about two and a half hours, using the charger provided in the box.
My s2 came with a 0.7amp charger and took about 2.5 hours. My s3 came with a 1amp charger and takes about the same. Charges to 80% in no time and then slows down for the later part of the charge
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A battery isn't like a fuel tank which you simply fill up through the hose until it's full.
Due to physical and chemical reasons, a nearly-full battery takes a lot longer to fill by a certain percent since it simply can't store the energy quickly enough.
Additionally, deep-discharged batteries often start with a slower charging speed (and then cranked up) to keep the battery from dying too soon and/or not being able to reach full capacity.
is the Nokia 1.2A charger ok to use with the samsung G3 as i got one of these spare and would prefer use it if so as the usb is way to short to reach from my desk up and around the back.
but the Nokia 1.2A charger lead is more than long enough
Just to check with all of you, i've been told that it is best not to charge your phone or any other handheld device IF the battery is not at a really low rate, at least not till your device actually prompts you to charge. They were saying that this would cause the battery life to be shortened. But at times, I need to make sure that i have enough battery to last me for a few more hours before i knock off from work, i would just charge the phone (battery at 25-30%) even before it prompts me to. Is it alright to do that often?
2ndly, at times when i stream videos on my phone for many hours, the battery would definitely drain fast and i would need to charge my phone at least 2-3 times a day. Is it alright for me to do that or am i "abusing" it? =X
Appreciate all your advises...Thanks in advance~
so any update on if using the nokia charger is ok with it being 200mah more than the standard 1A charger since it has longer lead.
or there is the 700mah samsung charger from my old S2
speaker5 said:
Well I bought the Galaxy S3 on the first day of the UK launch and depleted the battery to 0% then charged with the original 1 Amp charger from 0%. I had noticed that this takes a very very long time, around 8 hours. The battery life after charging however is substantial and very adequate.
On the second charge after depletion once again, I decided to use a Griffin 2.1 Amp charger which I had used to charge the hefty Galaxy note with.
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neko0nna said:
Just to check with all of you, i've been told that it is best not to charge your phone or any other handheld device IF the battery is not at a really low rate, at least not till your device actually prompts you to charge. They were saying that this would cause the battery life to be shortened. But at times, I need to make sure that i have enough battery to last me for a few more hours before i knock off from work, i would just charge the phone (battery at 25-30%) even before it prompts me to. Is it alright to do that often?
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I don't know why this misconception still lives on; lithium ion batteries require no priming on first use. The WORST thing you can do with a li-ion battery is to fully deplete it before recharging. It is much better to top it off whenever possible; having said that leaving it turned on, on the charger once it is full is also not the best thing (though nowhere near as bad as depleting it fully).
I believe since this phone has a removable battery with external charger the best thing you can do is always charge your battery in the external charger and just switch out the battery when it gets to around 10%.
Nek0onna you should charge your phone whenever it's not full and you have a handy charger.
http://batteryuniversity.com/learn/article/how_to_charge_when_to_charge_table
what about using different chargers though as i have said yet not answered yet,
i got a samsung s2 700mah charger and a nokia 1200mah charger which will work the best for the battery etc
the 1A included one the usb lead is to short for use behind a desk
jjwerrett said:
what about using different chargers though as i have said yet not answered yet,
i got a samsung s2 700mah charger and a nokia 1200mah charger which will work the best for the battery etc
the 1A included one the usb lead is to short for use behind a desk
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Yeah its fine, you can use it.
Sent from my E15i using xda premium
Can anybody check what the max charge rate is on this device with a battery monitor app? I have handfuls of 1A and a couple 2.1A chargers. I'd really like to charge at twice the rate if possible but not all devices support such rapid charging (kernel limits and such). Just curious before I buy one Thanks!
Even if Samsung slipped up and allowed a 2A charge i'd never want to try it, because tablet and laptop batteries are rated and manufactured for a higher current charge/discharge and most phone batteries would heat and swell up and possibly explode.
my HP touchpad charges with a 1A charger and it would be nice to use that with my sgs3.
Can anybody please check what the max charge rate is on this device
hi to all,
I got an Xperia Tablet Z recently.
I found that my battery drains normally, but it charges as slow as hell. What happened?
I'm using the EP850 charger and the official SONY data transfer cable. Last night it was 10%, I made it charging at night. After 4 hours, I found it was 12%
Something's wrong with your tablet or your charger.
Mine is EP880 and the tablet has been charged after 4-5 hours
EP850 should charge it from 0-100% is around 6 hours (if the Tablet isn't used). There is defiantly something wrong with either the charger, cable and/or your Tablet.
I've the same problem. Even while charging if I am surfing via WiFi then sometimes battery percent decreases. And tablet takes almost 4 hours to charge more than 50 %.
Using IPad 2 3G charger helps!! It's like 60% faster
I noticed that if the tablet is switched off and charging, it takes forever (10hours - only 50% charge), but when it is switched on but with no activity (e.g. in craddle) it charges noticeably faster (10-hours - 100%). So as far as i understood, while it is off it restricts charging current to 500mA, and on it uses full power from the charger. Also it was mentioned earlier that ipad or samsung (high current) charger will charge your tablet faster than a stock one.
Rootk1t said:
I noticed that if the tablet is switched off and charging, it takes forever (10hours - only 50% charge), but when it is switched on but with no activity (e.g. in craddle) it charges noticeably faster (10-hours - 100%). So as far as i understood, while it is off it restricts charging current to 500mA, and on it uses full power from the charger.
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Very interesting - I'll try this out.
Rootk1t said:
Also it was mentioned earlier that ipad or samsung (high current) charger will charge your tablet faster than a stock one.
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+1 to this.
I use an iPad charger for my Tablet Z and it is quicker (as it should be, iPad charger =2A , supplied Sony charger = 1.5A).
Is charging time really slow for the Xperia Ultra?
Mine charges about 35% per hour.
It takes 3 hours to fully charge my phone. Coming from a Samsung Note 2 which charges completely in 1.5 hours, I find this really slow.
Charge current 1Ah is normal.
jourdy said:
Is charging time really slow for the Xperia Ultra?
Mine charges about 35% per hour.
It takes 3 hours to fully charge my phone. Coming from a Samsung Note 2 which charges completely in 1.5 hours, I find this really slow.
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Try charging in Airplane Mode.
Well, there's two sides of fast charging.
One side, you need little time to charge (of course lol)
On the other side, the faster the charge (1,5 hour of full charge on lithiums is VERY fast) the more strains the battery experience in a charge cycle, hence shorter battery life. Since XZU battery is non removable, let's assume that sony play it safe..
Oh and CMIIW the charger for note 2 is rated at 2A DC output right (or was it the S4? I forgot)? That's higher than XZU's 1.5A DC output charger (CMIIW, haven't received my XZU yet).. So 1.5A DC to fill a 3Ah battery is about 2.5 hour, depending on the charge controller of the handset.
- Battery is 3050 mAh
- Charge current is 1 or 1.5 A(h), AKA 1000/1500 mAh
- Charging time for a 3000 mAh battery = (1000 mAh (1 A(h)) x 3 = 3000 mAh), or (1500 mAh (1.5 A(h)) x 2 = 3000 mAh)
TL;DR: It's normal. The bigger the battery, the longer it takes to charge.
You can use a 2 A charger, but it might damage the battery, or worse. Charging through a USB is also much slower (around 500 mAh)
jourdy said:
Is charging time really slow for the Xperia Ultra?
Mine charges about 35% per hour.
It takes 3 hours to fully charge my phone. Coming from a Samsung Note 2 which charges completely in 1.5 hours, I find this really slow.
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That is incredibly fast already for a battery of our size.
LordManhattan said:
- Battery is 3050 mAh
- Charge current is 1 or 1.5 A(h), AKA 1000/1500 mAh
- Charging time for a 3000 mAh battery = (1000 mAh (1 A(h)) x 3 = 3000 mAh), or (1500 mAh (1.5 A(h)) x 2 = 3000 mAh)
TL;DR: It's normal. The bigger the battery, the longer it takes to charge.
You can use a 2 A charger, but it might damage the battery, or worse. Charging through a USB is also much slower (around 500 mAh)
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Actually, charging lithium requires specific algortihm to maximize the battery's lifespan and capacity (CC-CV algorithm).
That's why phones manufacturers use "fast charge" marketing gimmick to charge your smartphone up to 80% capacity in just x hour. It is not actually "fast charge". It's just the CC phase, where the charging controller makes full use of the adaptor's output current. After that comes the CV phase, where every lithium batteries, no matter how big their capacity is, are in the mercy of current-voltage law... That said, charging a 3000mAh battery with a 1.5A adaptor will take more than 2 hours.
Technical things aside, charging (most of currently used) phone's batteries from "zero" to full capacity (which, to a certain extent, doesn't matter how big the battery's capacity is) in just 1.5 hours is near the limit of fast charging.
Thanks for the info. Takes me more or less 2.5 - 3 hours.
Now I know it is normal, thanks to your explanations. I was used to the Samsung Note 2's battery (3100 mAh) and it took just 1.5 hours to fully charge. I remember it being 1% increase per minute. Didn't know that the Samsung charger was 2A DC. Yikes, I sometimes use that to charge other devices.
unk_damnation said:
Actually, charging lithium requires specific algortihm to maximize the battery's lifespan and capacity (CC-CV algorithm).
That's why phones manufacturers use "fast charge" marketing gimmick to charge your smartphone up to 80% capacity in just x hour. It is not actually "fast charge". It's just the CC phase, where the charging controller makes full use of the adaptor's output current. After that comes the CV phase, where every lithium batteries, no matter how big their capacity is, are in the mercy of current-voltage law... That said, charging a 3000mAh battery with a 1.5A adaptor will take more than 2 hours.
Technical things aside, charging (most of currently used) phone's batteries from "zero" to full capacity (which, to a certain extent, doesn't matter how big the battery's capacity is) in just 1.5 hours is near the limit of fast charging.
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Interesting! We learn something new every day! Thanks
My device charges to 60% fast but after that is takes forever to get to 100 % whats app with that ?
yamani.m said:
My device charges to 60% fast but after that is takes forever to get to 100 % whats app with that ?
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Well for one thing, when you charge the battery, what you're doing is increasing its internal voltage. To charge the battery, you have to supply a higher voltage than the battery currently has, and so the higher the battery's charge, the slower it charges, all else being equal.
However, all is not equal, because at a certain point, the charger slows down the current it is delivering for safety reasons. These two things combine and the result is much slower charging after a certain point.
AntiLazarus said:
Well for one thing, when you charge the battery, what you're doing is increasing its internal voltage. To charge the battery, you have to supply a higher voltage than the battery currently has, and so the higher the battery's charge, the slower it charges, all else being equal.
However, all is not equal, because at a certain point, the charger slows down the current it is delivering for safety reasons. These two things combine and the result is much slower charging after a certain point.
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Wel that sucks >…< thanks for the info!!
Sent from my C6802 using Tapatalk 4
i used the charger from galaxy s4 ( 2A) to charge my xperia z ultra but it didn't charge it faster than the sony stock charger ( 1.5A). Weird. it seems that the phone doesn't allow more amps to be transfered. thats ashame cause if you use the phone while charging it doesn't charge almost at all. the consumption is higher than the charge rate
I just compared samsung 2A charger and Sony 1.5A on stock KK 4.4.4 (108). Samsung charger is better if you have limited time.
Is it real that charging with a higher current is bad for battery ?
Samsung 00:00>1%
Samsung 01:00>53%
Samsung 02:00>93%
Samsung 02:26>100%
Sony 00:00>5%
Sony 01:00>45%
Sony 02:00>80%
Sony 03:00>100%
macrostr said:
I just compared samsung 2A charger and Sony 1.5A on stock KK 4.4.4 (108). Samsung charger is better if you have limited time.
Is it real that charging with a higher current is bad for battery ?
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Debatable, but I don't know that much about battery tech, so i'm not going to speculate. I'll keep using the stock charger though, since the Ultra has an internal battery after all, and I won't risk damaging the battery by using a different charger.
I'm using the DK30 dock btw, and it takes 2 hours from 0-100%. Do you have the dock, or are you using a regular cable?
LordManhattan said:
Debatable, but I don't know that much about battery tech, so i'm not going to speculate. I'll keep using the stock charger though, since the Ultra has an internal battery after all, and I won't risk damaging the battery by using a different charger.
I'm using the DK30 dock btw, and it takes 2 hours from 0-100%. Do you have the dock, or are you using a regular cable?
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Using regular cable. Today I'll visit local Sony store for DK30 and I can repeat the test with the dock.
1 hour difference is great,