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So I just ordered this charger and it charged my phone from 4% to %100 percent in exactly 3 hours!
http://www.amazon.com/gp/product/B0051ZJA64/ref=oh_o00_s00_i00_details
Wow, what a great improvement over stock which takes 6+ hours. This makes me believe, that even though the stock output is rated at 1000ma and this charger's output is only rated 700ma that this charges works correctly!
If you have a 1800mah battery and you charge it at a rate of .7A, it should take it exactly 2.57 hours to charge, (1800/700). With stock it should take less, because 1800/1000 = 1.8 hours, but it takes 6+ hours to fully charge! Something is f'ed up with the stock charger or phone's software...
Yeah. About that. I just got my E4GT yesterday and noticed it does charge extra slow compared to my O.G. Epic.
My wife stayed with hers, maybe I will try charging my phone on hers. I wonder if that would make a difference...
Android Amateur said:
Yeah. About that. I just got my E4GT yesterday and noticed it does charge extra slow compared to my O.G. Epic.
My wife stayed with hers, maybe I will try charging my phone on hers. I wonder if that would make a difference...
Click to expand...
Click to collapse
At first my charging was extremely slow but now it'll charge from 2 to 100 in under three hours
Sent from my SPH-D710 using xda premium
I use the Palm charger from my TouchPad. Will go from dead to fully charged in about an hour and a half.
What's you TouchPad charger's output in mah? I think I might have to splice into a spare USB cable and check how much current is actually used by phone when on stock charger...pretty sure it is nowhere close to 1000mah.
2000mah is the output from the TP charger.
According to BatteryMonitorWidget, it estimates avg mA charging at 270mA using the stock charger that came with this particular phone.
I have my original charger from my Evo 4g and have noticed that it charges my phone a lot faster then the stock one that came with the phone. :-( weird
Sent from my SPH-D710 using Tapatalk
sfhub said:
According to BatteryMonitorWidget, it estimates avg mA charging at 270mA using the stock charger that came with this particular phone.
Click to expand...
Click to collapse
That sounds about right! I'll see if I can test this with my AMP meter tonight and tell you all for sure on stock vs new samsung charger that I've got.
awesomeindeed said:
2000mah is the output from the TP charger.
Click to expand...
Click to collapse
Yeah, at 2000mah it should charge in less than one hour...I would say your actual charge current to be around 1200mah...
i would be careful with these chargers.
i have dealt with a lot of Li-Po's in the past and there was a formula to how fast you should charge them.
i imagine it is the same deal with Li-On.
charging outside such formula could kill the life of your battery or worse.
Seems like i must have gotten lucky as a ton of people are having problems with their phone or chargers.
I just charged my battery from 0 to 100% off the stock charger in 2 and a half hours and i also havent gotten any of the dodgy input problems using the phone while charging.
I went back and took a longer look at the battery history when charging. When starting the charge at 65% it starts off around 828mA, then 540mA, then 360mA, so it looks like (as expected) the phone knows how much current to pull to charge the battery safely and it adjusts based on how full the battery is. Not saying it does this for the charger included with your phone, but that is the behavior for the charger included with this phone.
These are all estimates provided by Battery Monitor Widget because there is no real-time mA current meter in this phone (according to the author)
Ordered one of these. Stock charger takes a lifetime to charge the phone.
My GF got Nexus S 4G and it's stock charger also takes 6+ hours to charge, so there's something wrong with the chargers I guess...
The pins on this charger must me different than the stock charger. Just because the stock charger is rated up to 1Ah doesn't meant the phone or batteries circuitry allows that much output. The resistance and length of the USB pins on the cable are what determines the output of the charger. Simply using a different USB cable with the stock charger will get you faster charge times.
Using a 2Ah charger will get you nowhere, the circuitry doesn't allow that strong of a current. Just a bit of an FYI. Save your money and save your phone, use a different USB cable.
Also, how is the charge time holding up? I doubt you're getting a saturated charge with that charger.
SpaceMonky said:
i would be careful with these chargers.
i have dealt with a lot of Li-Po's in the past and there was a formula to how fast you should charge them.
i imagine it is the same deal with Li-On.
charging outside such formula could kill the life of your battery or worse.
Click to expand...
Click to collapse
Ive dealt with 1,2, and 3 cell lipos ranging from 150mah to 5000mah, and every one of them either say to be (or ive been told its recommended to do so) charged at 1C. so a 500mah battery should be charged at .5A, 1000mah at 1A, 5000mah at 5A, etc...
my lipo charger displays a bunch of info as the battery charges and it definitely drops the current as the battery gets closer to being fully charged. if its the same with li-on then I would imagine that .18A should be the most you would charge this battery, but Id rather it take a long time because unless things have changed recently, doesnt the slower you charge the battery prolong its life cycle as well as extend how long it lasts each charge? I only charge mine at night when I am sleeping so who cares if it takes longer than an hour. if I get into an emergency situation I have the cig lighter charger and in the worst case I even have one of those crank flashlights I can use to charge the phone in the event my car battery shorted out or something...
Hello *@*,
I intentionally discharged my GN to a battery level of 1% today to record the charging time just for myself. Then I thought: why not make a graph out of it and share it with XDA?
Total charging time (1% to 100%): 142 minutes
Level checked at 0, 30, 60, 90, 120, 125, 130, 135, 140 and 142 minutes
WiFi On, 3G On, Sync On, Screen Off, no calls/msgs/notifications received, phone not used except for % check
1750 mAh Samsung stock battery & charger
Stock or extended battery? I've noticed my charge time varies wildly. Most of the time it's on par with what you've listed here, but every once in a while it goes up 30% in like 20 mins.
Drewmungus said:
Stock or extended battery? I've noticed my charge time varies wildly. Most of the time it's on par with what you've listed here, but every once in a while it goes up 30% in like 20 mins.
Click to expand...
Click to collapse
3G, 1750 mAh stock battery. Sorry, I forgot about that.
Its so curious how the charge can be faster at the start
Rickymax said:
Its so curious how the charge can be faster at the start
Click to expand...
Click to collapse
Get a more powerful charger.... I'm using my playbook charger, which uses a 2.1 amp... Way faster than 142 mins... Mine takes about 1:30 to charge from 1% to full.
Sent from my Galaxy Nexus
Rickymax said:
Its so curious how the charge can be faster at the start
Click to expand...
Click to collapse
All capacitors acts this way (a battery is also a capacitor) the charge/discharge is always fsstest to 63% both ways and after that it slowes down.. this can ofcourse be monitored and controlled with soft or hardware. But this is the reality of capacitors
Sent from my Galaxy Nexus using xda premium
big samm said:
Get a more powerful charger.... I'm using my playbook charger, which uses a 2.1 amp... Way faster than 142 mins... Mine takes about 1:30 to charge from 1% to full.
Sent from my Galaxy Nexus
Click to expand...
Click to collapse
isnt it bad for the battery when it is not designed to receive charge that quickly?
All about charging LiIon batteries: http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
TL;DR:
LiIons are charged in two main stages:
- stage 1 with constant current, that's the fast charging rate for (roughly) the first 2/3 of the batteries capacity
- stage 2 with constant voltage and a tapered charge current for the last 1/3 of the batteries capacity, that's the slow part where the graph flattens
This is necessary because a LiIon battery is full at exactly 4.20 V and can not handle any overcharge. In fact at ~4.55 V (only + 0.35 V!) the battery would "vent with flame" aka explode.
If you wanna do this on purpose, this is what will happen: http://www.youtube.com/watch?v=YCWdnjLqVWw
Using a more powerful charger can work if the electronics inside the GN handle the higher current properly. I wouldn't recommend it, though. It may charge quicker but it will wear down your battery faster as well.
The phone can only draw up to 1A regardless of much higher the charger is.
So if you're buying a charger, don't bother paying extra for a 2A, but there is no harm in using a 2A charger if you already have one.
wonshikee said:
The phone can only draw up to 1A regardless of much higher the charger is.
So if you're buying a charger, don't bother paying extra for a 2A, but there is no harm in using a 2A charger if you already have one.
Click to expand...
Click to collapse
But I can assure you that my phone charges faster with my Playbook charger than the regular charger that came with the phone... How many amp the regular charger uses?
Sent from my Galaxy Nexus
big samm said:
But I can assure you that my phone charges faster with my Playbook charger than the regular charger that came with the phone... How many amp the regular charger uses?
Click to expand...
Click to collapse
Stock charger is 5V/1A (=5 watts). There may be some leeway built into the GN's charging electronics so it can utilize more than 5 watts, but you can safely assume that Samsung would have packaged this phone with a 10 watt charger if it was safe (or desirable in terms of charging time vs. battery durability). Charging time is an important aspect after all.
The phone can absolutely handle it. I think Samsung is just too cheap to give us a rapid charger, I mean there was enough space in the box.
Sent from my Galaxy Nexus
My car charger is a 2amp charger and does approximetly 1 percent a minute. At home I connect it to my HP Touchpad charger and it seems to charge really quick.
But I LOOOOOOVE my car charger as it can charge my Tablets and phones fast. Well worth the 30 bucks I spent at Best Buy for the rapid charger.
surely a 2amp charger is capable of providing 2amps, but if whatever is attached only drawers 1amp then that's what it'll get ? It doesn't force 2 amps down it's throat ? My palm pre 2 charger is 1amp, my touchpad has a 2 amp charger, but my palm pre doesn't charge any quicker using the touchpad charger.
My Gnex does charge really fast using the plug that came with it especially coming from galaxy s2 which takes ages for a full charge.
alphaola said:
My Gnex does charge really fast using the plug that came with it especially coming from galaxy s2 which takes ages for a full charge.
Click to expand...
Click to collapse
+1 I found the gnex really fast charging compared to my sgs2. With the sgs2 I always had it plugged in for fear of a flat battery with the gnex the charging is so fast I don't care anymore.
Sent from my Galaxy Nexus using XDA App
AcE XBOX said:
My car charger is a 2amp charger and does approximetly 1 percent a minute. At home I connect it to my HP Touchpad charger and it seems to charge really quick.
But I LOOOOOOVE my car charger as it can charge my Tablets and phones fast. Well worth the 30 bucks I spent at Best Buy for the rapid charger.
Click to expand...
Click to collapse
FYI, 1% a min is roughly 1A.
In 1 hour, it would restore 60%, 60% of 1.750A = 1.050A.
Nexus battery is the perfect size to eyeball the inflow rate.
30%/hr = .5A
60%/hr = 1A
60%/30min = 2A
If you think you're charging at 2A, simply time it. Also these are rough numbers and will only be accurate when the battery is low.
How long does it take to fully charge your One-X?
Mine is already charging 3.5h to get from 40%to 80%....
Using the default charger, and not using the device.
Isn't that a bit to long?? My HD2 was completely charged in 2h..
Foggy79 said:
How long does it take to fully charge your One-X?
Mine is already charging 3.5h to get from 40%to 80%....
Using the default charger, and not using the device.
Isn't that a bit to long?? My HD2 was completely charged in 2h..
Click to expand...
Click to collapse
I am no expert, so don't hold me on this one, but I believe your device charge should speed up due to firmware updates and also once the battery has been 'worn' in - just stuff I have seen about.
Can anyone else provide me their charge times? How long it takes to charge from A to B?
Pls mention with wall outlet or USB.
I've noticed this as well. My Arc charges in like 2-3h to full. the One X takes about 2 hours to get to about 60% from 30% (using USB).
edit: wall charging takes just as long.
WC_EEND said:
I've noticed this as well. My Arc charges in like 2-3h to full. the One X takes about 2 hours to get to about 60% from 30% (using USB).
edit: wall charging takes just as long.
Click to expand...
Click to collapse
Can't be normal, right? 2h from 30% to 60%...
i think its to do with the type of battery they are using to be fair
Interesting reading about lithium based batteries
this is a quote from batteryuniversity dot com
Simple Guidelines for Charging Lithium-based Batteries
• A portable device should be turned off while charging. This allows the battery to reach the threshold voltage unhindered and reflects the correct saturation current responsible to terminate the charge. A parasitic load confuses the charger.
• Charge at a moderate temperature. Do not charge below freezing.
• Lithium-ion does not need to be fully charged; a partial charge is better.
• Chargers use different methods for “ready” indication. The light signal may not always indicate a full charge.
• Discontinue using charger and/or battery if the battery gets excessively warm.
• Before prolonged storage, apply some charge to bring the pack to about half charge.
• Over-discharged batteries can be “boosted” to life again. Discard pack if the voltage does not rise to a normal level within a minute while on boost.
Click to expand...
Click to collapse
And I also read that charge time should be almost 3h for a full charge(i suppose this is when device turned off). You could get about 70% charge in about an hour if I remember correctly.
Hmm not gonna turn off the phone for every charge tbh...
Sent from my HTC One X using xda premium
While charging and using the phone it takes around 5 hours to get from 5% to 14% when not using but charging takes around 3-5 hours to charge from 25% to 100%
My second charge, from 0% to 100%, with device shut down took 3.5 hours to show the green led... quite a long time since I was using the wall-charger... I hope it will improve with the fw update and after the battery has been "initialized"
Today I began charging my HOX at 1:44 (1%) and it finally reached 100% at 4:59.
I was using HTC's charger.
WiplashNL said:
Today I began charging my HOX at 1:44 (1%) and it finally reached 100% at 4:59.
I was using HTC's charger.
Click to expand...
Click to collapse
same here, about 3h from shutdown with 0% to seeing green LED
using wall charger
Took me three hours with original HTC wall charger and original HTC cable (no extension) to charge from 4% to 100%. Terribly slow!
EDIT 1 : Apparently BWM doesn't show accurate power draw while idle on the One X for now, so my post has become totally irrelevant
I always install Battery Monitor Widget on all my Android devices and monitor charge and discharge constantly.
On my Desire Z, if it's below 70%+ I get a charge rate of about 750mAh from wall socket.
But on my One X, with the same charger (both are rated for 1amp, and both HTC), my charge rate drops to 450+ at 60% battery life.
It's probably a software issue, but charging the One X does take noticeably longer.
I don't think it is a software issue, as the battery pack is larger than before. Also when you are active the phone itself draws large amount of current and it definitely slow down your charge rate.
eeporkbun said:
I don't think it is a software issue, as the battery pack is larger than before. Also when you are active the phone itself draws large amount of current and it definitely slow down your charge rate.
Click to expand...
Click to collapse
When your phone is idle with screen of, it shouldn't drain large amounts of power while charging. Can't imagine that has a huge influence on charge times tbh.
And for capacity, my HD2 was charged in about 2H for a 1200Ah battery, this 1800Ah One-X batt should be full in like 3h... not 5 or 6h...
The official wall charger took 2.5 hours to fully recharge the One X
Ok after an amount of charges, it now takes only 2.5h - 3h anymore for a complete recharge.
Official wall charger.
Did a charge on mine this morning from dead, took 2.5 hours to get to about 90%, left it for another hour but it didn't go up the last 10% stayed on 90 even after the extra hour. Off the wall
Foggy79 said:
Hmm not gonna turn off the phone for every charge tbh...
Sent from my HTC One X using xda premium
Click to expand...
Click to collapse
I'm thinking the same... I don't mind turning it off on a night for the first 2/3 charges but personally this is my only phone (don't have a house phone) so will be keeping it on through the night in case someone needs me in an emergency etc...
Was interesting to read that batteries prefer a partial charge and do not need to be fully charged; which is good actually as mines got around 18% left and I'm about to stick it on charge for the next 8 hours.
My GS3 takes about 3-4 hours to charge from 0% to 100%. I am on stock and am using the OEM wall charger that came with the phone. Is this normal?
Mine takes around an hour or two I believe it used to take around the same as yours but it doesn't last as long. But how long does yours last
Sent from my GT-I9300T using xda app-developers app
2H+
rnagam1 said:
My GS3 takes about 3-4 hours to charge from 0% to 100%. I am on stock and am using the OEM wall charger that came with the phone. Is this normal?
Click to expand...
Click to collapse
Mine take over 2 hours from 5% to 100% using stock wall charger,,, 3 to 4 seen like a lot.
The answer is... it depends.
If you're charging with the phone on, it will take longer, if you're charging via a usb port, it will take longer.
If the phone is off and you're using the stock wall charger, you're charging at a maximum of one amp. If you have a stock 2100mah battery (2.1 amp-hours) and your charger is 100% efficient (never happens), the best possible 0-100% charge time is... 2.1 hours, it really is that simple
Now, you're not getting 100% efficiency, plus the way lithium batteries charge, at around ~50% capacity, the charge current steps down gradually from 1 amp to nearly 0 amps, so your real full charge time with phone off is probably going to be closer to 4 hours than 2. The step down is necessary to avoid over-charging. The logic (usually in the battery itself for phone batteries) to determine full charge is when the battery reaches 4.2 unloaded volts. Charging current will increase the voltage reading, so as it gets closer to full, charge current is gradually stepped down to maintain the 4.2 volt full charge state. As the current approaches zero and volts stay at 4.2, the charge controller knows that the battery is full.
Check out batteryuniveristy dot com for more than you ever wanted to know about batteries of various chemistry, details about charging, discharging, and battery health.
rnagam1 said:
My GS3 takes about 3-4 hours to charge from 0% to 100%. I am on stock and am using the OEM wall charger that came with the phone. Is this normal?
Click to expand...
Click to collapse
I always drain completly my battery then I charge it for 8-10 hours even if it is showing 100%
rnagam1 said:
My GS3 takes about 3-4 hours to charge from 0% to 100%. I am on stock and am using the OEM wall charger that came with the phone. Is this normal?
Click to expand...
Click to collapse
3 hours is the average using the included 1amp A/C charger.
Charges 10% about every 15 minutes for 0% to 90%, and charges the last 10% in about half an hour.
(don't bother trying to charge using your computer's 0.5amp usb port, though; takes forever, especially if you're using it while charging)
There are reports that the charger that came with the s3 is garbage.
I was using the s2 cable to charge and it took approximately 1.5 hours.
Now it's taking 3 - 4 hours.
roger85 said:
There are reports that the charger that came with the s3 is garbage.
Click to expand...
Click to collapse
The charger that comes with the S3 is NOT garbage. I tested charging times against a "better" 2.1amp charger about a month ago and there was no difference. (If your custom kernel supports "fast charge", then there'll be a difference, but your battery will suffer. Better to stick with 1amp)
I was using the s2 cable to charge and it took approximately 1.5 hours.
Now it's taking 3 - 4 hours.
Click to expand...
Click to collapse
That doesn't make any sense. I think you're just not remembering correctly. Test again and report back.
zmore said:
The charger that comes with the S3 is NOT garbage. I tested charging times against a "better" 2.1amp charger about a month ago and there was no difference. (If your custom kernel supports "fast charge", then there'll be a difference, but your battery will suffer. Better to stick with 1amp)
That doesn't make any sense. I think you're just not remembering correctly. Test again and report back.
Click to expand...
Click to collapse
Flashed JB today. Phone currently charging. Started charging at 2%, now at 41% and it's been 45 min. Estimate completion time, 1 hour 45 min.
So the culprit is not the USB charger, but rather something I had installed on ICS. I suspect it is the launcher I was using, which was GO launcher. Prior to JB, i was using apex and it was charging a little bit faster than GO, but still wasn't acceptable. I think it was 3ish hours for full charge.
My current JB setup is pure stock launcher and apps.
With stock charger it takes my phone approximately 2.5 hours to go from 5% to 100%.
roger85 said:
There are reports that the charger that came with the s3 is garbage.
I was using the s2 cable to charge and it took approximately 1.5 hours.
Now it's taking 3 - 4 hours.
Click to expand...
Click to collapse
I can confirm that,my AT&T S3 has been charging with that charger for 6 hours and I am still showing a 50%,so I had to grab a Motorola charger and it went up from 50% to 73% in half an hour.
Freaking Samsung,there's always something.
I'm on Slimbean 4.2.1 RC1 w/ lean kernel and my phone will usually last (with average daily use) about 3 days on one charge. The rom/kernel supports fast charge so I can get it from 0-100% charge in under an hour and a half. On stock rooted rom I was getting maybe a day and a half of battery life. Darned AT&T bloat lol
fizzer82 said:
The answer is... it depends.
If you're charging with the phone on, it will take longer, if you're charging via a usb port, it will take longer.
If the phone is off and you're using the stock wall charger, you're charging at a maximum of one amp. If you have a stock 2100mah battery (2.1 amp-hours) and your charger is 100% efficient (never happens), the best possible 0-100% charge time is... 2.1 hours, it really is that simple
Now, you're not getting 100% efficiency, plus the way lithium batteries charge, at around ~50% capacity, the charge current steps down gradually from 1 amp to nearly 0 amps, so your real full charge time with phone off is probably going to be closer to 4 hours than 2. The step down is necessary to avoid over-charging. The logic (usually in the battery itself for phone batteries) to determine full charge is when the battery reaches 4.2 unloaded volts. Charging current will increase the voltage reading, so as it gets closer to full, charge current is gradually stepped down to maintain the 4.2 volt full charge state. As the current approaches zero and volts stay at 4.2, the charge controller knows that the battery is full.
Check out batteryuniveristy dot com for more than you ever wanted to know about batteries of various chemistry, details about charging, discharging, and battery health.
Click to expand...
Click to collapse
So how do we decide the most efficient charging method possible? How do we look at the Amperage of the battery and the amperage of the charger and decide what's best?
Also what's faster? Wall charging or fast/quick charging to a USB line?
zetsui said:
So how do we decide the most efficient charging method possible? How do we look at the Amperage of the battery and the amperage of the charger and decide what's best?
Also what's faster? Wall charging or fast/quick charging to a USB line?
Click to expand...
Click to collapse
Fast Charge will make it charge the same speed the wall charger would (but breaks storage mount while it's turned on).
Galaxy S3 charging time
roger85 said:
There are reports that the charger that came with the s3 is garbage.
I was using the s2 cable to charge and it took approximately 1.5 hours.
Now it's taking 3 - 4 hours.
Click to expand...
Click to collapse
:good: I started charging my s3 at 8:30AM this morning. and at 5:50PM it's showing 96% charged. taking 9 HOURS! to ALMOST CHARGE?? I ALREADY REPLACED THE BATTERY ONE TIME WITH ANOTHER ONE. BOUGHT THE PHONE NEW FROM METRO.
SO MAYBE YOU ARE RIGHT THE CHARGER IS GARBAGE. I WILL TRY ANOTHER WALL CHARGER AND SEE IF IT WILL CHARGE FASTER.
THANKS! FOR THIS POST!
liltitiz said:
I always drain completly my battery then I charge it for 8-10 hours even if it is showing 100%
Click to expand...
Click to collapse
This doesn't mean you battery is "on charge" for all the time... once the battery is 100%, the charge changes to something called "trickle charge". At this point charge does not happen continuous, but like a trickle to maintain the 100%.
Pull the phone out at the end of 8 hours of charge, and notice how quickly it goes to 99. Pull it like 10 mins after it says full, and it takes longer to go to 99%.
---------- Post added at 10:07 PM ---------- Previous post was at 10:06 PM ----------
jajdaman said:
:good: I started charging my s3 at 8:30AM this morning. and at 5:50PM it's showing 96% charged. taking 9 HOURS! to ALMOST CHARGE?? I ALREADY REPLACED THE BATTERY ONE TIME WITH ANOTHER ONE. BOUGHT THE PHONE NEW FROM METRO.
SO MAYBE YOU ARE RIGHT THE CHARGER IS GARBAGE. I WILL TRY ANOTHER WALL CHARGER AND SEE IF IT WILL CHARGE FASTER.
THANKS! FOR THIS POST!
Click to expand...
Click to collapse
Foremost, take off all caps. CAPS mean screaming.
---------- Post added at 10:09 PM ---------- Previous post was at 10:07 PM ----------
zetsui said:
So how do we decide the most efficient charging method possible? How do we look at the Amperage of the battery and the amperage of the charger and decide what's best?
Click to expand...
Click to collapse
Higher amps charge battery faster... but... at the cost of capacity... At approximate 10% more charge than the battery is optimized of, it kills the battery by as much as 30% sooner. So its not really worth that. At the same time lowering the amps by 10% increases life by about 20-30%.
---------- Post added at 10:11 PM ---------- Previous post was at 10:09 PM ----------
roger85 said:
There are reports that the charger that came with the s3 is garbage.
I was using the s2 cable to charge and it took approximately 1.5 hours.
Now it's taking 3 - 4 hours.
Click to expand...
Click to collapse
I have two S3 phones, and am using stock wall charger and stock cables, and never had an issue thus far.
It takes me 1 hour to fully charge mine but it's only two months old.
Sent from my SGH-I747M using xda app-developers app
SoundsLegit said:
It takes me 1 hour to fully charge mine but it's only two months old.
Sent from my SGH-I747M using xda app-developers app
Click to expand...
Click to collapse
1 hour is like kinda too low... non stock charger?
My s2 takes approximately 3.5 hours to charge. Why? Btw, is it bad for the battery if after the battery is fully charged, it's still plugged for approx 6 hours almost every day?
Sent from my GT-I9100 using xda premium
diablo009 said:
1 hour is like kinda too low... non stock charger?
Click to expand...
Click to collapse
I use the charger that came with it yes and I leave the screen off and it usually charges in 1hour.
Sent from my SGH-I747M using xda app-developers app
how fast can Arc S charge?
how many Voltage recommanded for the charger?
is 1000mA max support, can it be higher like 2000mA?
thank you
All I know is that the default charger is 850mAh, and that already chargers pretty fast. half-full in an hour.
sdk16420 said:
All I know is that the default charger is 850mAh, and that already chargers pretty fast. half-full in an hour.
Click to expand...
Click to collapse
do you think it can be faster?
i would say mine charges full in an hour
charge current is programmed in phone's firmware below 1A for AC chargers and below 500mA for USB (don't remember actual values), so even if a 2A charger is used, charge time will not vary.
Mine goes about 1% a minute, I find it good enough for me.
Full charge takes about 1,5h so for me it's not long. But comparing to Xperia S and 0,5h Arc S charge takes ages
When it gets to 90% or maybe even 85%, it slows down its charging, and displays the LED as green, it then continues to charge, this is the economic techniques of the charger, at least that's what I remember from the manual. So it saves energy as most people charge their phone at night, as it gets plugged in for longer periods of time.
This was the first device that introduced me to that concept, the iPhone 3G I had before focused on faster charging. I am unaware of any other products that use green charging methods, however I'm certain other devices will do.
Sent from my LT18i using xda app-developers app
stu15 said:
When it gets to 90% or maybe even 85%, it slows down its charging, and displays the LED as green, it then continues to charge, this is the economic techniques of the charger, at least that's what I remember from the manual. So it saves energy as most people charge their phone at night, as it gets plugged in for longer periods of time.
This was the first device that introduced me to that concept, the iPhone 3G I had before focused on faster charging. I am unaware of any other products that use green charging methods, however I'm certain other devices will do.
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charging a lithium based cell requires a first step using a constant current supply, until voltage reaches 4.2 volt; beyond that point, charging switches to constant voltage, providing the last 10% or so of charge to the cell.
every li-ion charger does so, but someone signals "cell charged" (i.e. green led) when charger actually stops supplying current, others when transitioning from constant-current to constant-voltage mode.
and if that last 10% of charge is not so vital for you, i suggest to disconnect charger as soon as led turns green, because at that high voltage, corrosion of battery's anode is faster and so life of cell and it's capacity is reduced on the long run.
ww w.societyofrobots.com/robotforum/index.php?action=dlattach;topic=13150.0;attach=5296;image
(remove spaces from link, i'm below 10 posts)
_Homer said:
and if that last 10% of charge is not so vital for you, i suggest to disconnect charger as soon as led turns green, because at that high voltage, corrosion of battery's anode is faster and so life of cell and it's capacity is reduced on the long run.
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MYTH NO. 2: Overcharging your lithium ion battery will reduce its battery life
One of the most common myths that we have heard about lithium ion batteries would be the need to plug it from its charger after being fully charged, since overcharging the battery/device will reduce its battery life. The truth is, lithium ion batteries cannot be overcharged or can be reduced of its battery life through overcharging. What’s good about these batteries is that that already have built-in circuits that will cut off the power once it has been fully charged.
However, it is a good idea to unplug or remove the battery once it has done charging because the heat from poor ventilation or from charging will cause it to blow up. Another reason why this is an important note worth remembering is that batteries discharge faster when heated thus, reducing its lifespan.
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http://www.androidauthority.com/the-top-3-android-battery-myths-46924/
Someguyfromhell said:
http://www.androidauthority.com/the-top-3-android-battery-myths-46924/
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that it's true, and is a residual myth from the age of stupid charger that went on charging forever after 100%.
perhaps I was not talking about overcharging, but to terminate charge before the constant-voltage part (at about 90%) if you want to slow down capacity reduction and so prolong battery life.
life of li-ion cell is optimal at 40% charge, but obviously a cell kept at 40% is useless :laugh:, so only thing I can suggest is to avoid reaching full charge if you can.
it's a form of perfectionism, let's call it so
I undervolted my phone, turned off WiFi, sync, brightness and put it on powersaver, charged at 1% a minute which is much faster than its normal charge. Good for me to know, obviously turning the phone off is basically the same
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jman2131 said:
i would say mine charges full in an hour
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me too my phone charges full in an hour
agree about full charge with 1 hour
mine is sometimes less than 1 hour with original charger. with PC or non original chargers more than 2 hours. sometimes 3
ash-ta said:
me too my phone charges full in an hour
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the same for me
agrCale this
what about charge from PC?