Is there any way around this limit? Custom kernel etc.
It's really annoying that my phone discharges, albeit slowly, when using satnav and full screen brightness.
No, there is not. However, if you are using GPS in your car and your charger is detected as MISC or USB, you could increase that to 650mA.
Mine is detected as a charger, not MISC or USB, so I get the full 650mA but I need more current, probably 800mA would do the trick.
I wonder if fitting the new Samsung extended battery would increase the charging current.
gevans35 said:
Mine is detected as a charger, not MISC or USB, so I get the full 650mA but I need more current, probably 800mA would do the trick.
Click to expand...
Click to collapse
It would fry the phone, the battery or both.
gevans35 said:
I wonder if fitting the new Samsung extended battery would increase the charging current.
Click to expand...
Click to collapse
No, it would increase battery life due to higher capacity, but not the charging current.
You could resolder a resistor on the phones motherboard, but there is no software way to get around the limit.
Sent from my GT-I9100 using Tapatalk
Try shiyah kernel and voltage control
Sent from my GT-I9100 using XDA App
Makrilli said:
Try shiyah kernel and voltage control
Click to expand...
Click to collapse
Just to clarify so others don't keep spreading it, trying shiyah (sic) kernel with voltage control will not change anything, you are limited to 650mA.
Makrilli said:
Try shiyah kernel and voltage control
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
I looked at that but, apparently, although it shows a 950mA option, the phone still won't draw over 650mA.
veyka said:
You could resolder a resistor on the phones motherboard, but there is no software way to get around the limit.
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
So it's hardware limited, how stupid .
My main use for a smartphone is satnav and one that goes flat after 500 miles is about as much use as a chocolate tea pot. I suppose my only option is to turn down the brightness and remember to go back to HTC for my next phone.
veyka said:
You could resolder a resistor on the phones motherboard, but there is no software way to get around the limit.
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
So it's hardware limited, how annoying .
My main use for a smartphone is satnav and one that goes flat after 500 miles is about as much use as a chocolate tea pot. I suppose my only option is to turn down the brightness and remember to go back to HTC for my next phone.
gevans35 said:
My main use for a smartphone is satnav and one that goes flat after 500 miles is about as much use as a chocolate tea pot. I suppose my only option is to turn down the brightness and remember to go back to HTC for my next phone.
Click to expand...
Click to collapse
Assuming your car charger is actually supplying 650mA and the phone is still losing charge, you're not entirely without options. For example, you could use a lower brightness (which you already acknowledge), limit the CPU frequency/disable one core or have your sat nav application turn off the screen between instructions.
oinkylicious said:
Assuming your car charger is actually supplying 650mA and the phone is still losing charge, you're not entirely without options. For example, you could use a lower brightness (which you already acknowledge), limit the CPU frequency/disable one core or have your sat nav application turn off the screen between instructions.
Click to expand...
Click to collapse
Thanks, I'll investigate the CPU options, I couldn't live with the screen turning off though.
For the future, I wonder if ICS's better handling of the two cores will reduce consumption.
You can turn mystic up to 650 from 450 which might help with the discharging while using satnav issue.
You would need a custom kernel and voltage control.
Sent from my GT-I9100 using Tapatalk
What is mystic?
veyka said:
You can turn mystic up to 650 from 450 which might help with the discharging while using satnav issue.
You would need a custom kernel and voltage control.
Click to expand...
Click to collapse
gevans35 said:
What is mystic?
Click to expand...
Click to collapse
I presume he meant MISC, which you already clarified shouldn't matter (but wouldn't harm to try, if you're already using a kernel which supports changing these values).
gevans35 said:
Mine is detected as a charger, not MISC or USB, so I get the full 650mA
Click to expand...
Click to collapse
As an additional, newer versions of Siyah kernel allow you to see the charge current.
oinkylicious said:
I presume he meant MISC, which you already clarified shouldn't matter (but wouldn't harm to try, if you're already using a kernel which supports changing these values).
As an additional, newer versions of Siyah kernel allow you to see the charge current.
Click to expand...
Click to collapse
I just downloaded a battery widget app and my car charger (2amp) is definitely recognised as 'AC' which I assume should be 650mA.
I'm using Android 2.3.6, Gingerbread XILA2, Rooted. Would Siyah kernel be worth a try?
Fast charging the battery shortens its life anyway. Slow charges are better, IMO.
I don't mind waiting a few extra minutes or buying an additional battery and cycling them, or charging them externally
donalgodon said:
Fast charging the battery shortens its life anyway. Slow charges are better, IMO.
I don't mind waiting a few extra minutes or buying an additional battery and cycling them, or charging them externally
Click to expand...
Click to collapse
But I need sufficient current to cover my satnav drain plus a bit to charge the battery when I'm driving. I don't mind replacing the battery every six months but pulling off the road to change it is a non starter.
gevans35 said:
Would Siyah kernel be worth a try?
Click to expand...
Click to collapse
It's not likely to help your issue, at least not without playing with a few already mentioned things (like limiting CPU frequency or disabling one core).
Related
I bought a charger from ebay made in china, it works, but im scared it might mess the internals of the phone or mess with the battery levels, is this true or is it safe?
Output of the charger:
4.3v, 380mah
Sent from my SK17i using XDA App
royalbloodvi said:
I bought a charger from ebay made in china, it works, but im scared it might mess the internals of the phone or mess with the battery levels, is this true or is it safe?
Output of the charger:
4.3v, 380mah
Sent from my SK17i using XDA App
Click to expand...
Click to collapse
I think it's too low. It has to be at least 5 volts and 500mah.
prinzhernan said:
I think it's too low. It has to be at least 5 volts and 500mah.
Click to expand...
Click to collapse
what would happen if i use it to charge anyway? just a shorter battery time? or will it damage it?
royalbloodvi said:
what would happen if i use it to charge anyway? just a shorter battery time? or will it damage it?
Click to expand...
Click to collapse
Must be jokin right?
Sent from thé,ibterweb
royalbloodvi said:
what would happen if i use it to charge anyway? just a shorter battery time? or will it damage it?
Click to expand...
Click to collapse
When I tried my phone became un responsive. I took it out immediately.
Sent from my GT-I9100 using xda premium
royalbloodvi said:
what would happen if i use it to charge anyway? just a shorter battery time? or will it damage it?
Click to expand...
Click to collapse
I'm not an electronics expert, but based on my personal experience, this does not damage your phone but it willl charge quite slowly (or it might refuse to charge at all, if limitations are built in inside the phone).
I think you should look for a charger with 500-1000 mAh (5V) output.
On the other hand, no, using a non-SonyEricsson charger will not damage your phone (I've been charging my new Mini Pro exclusively with my Samsung charger (which came with my i7500 Galaxy which is happily forgotten by now) because it provides a stronger current than the SE provided one (and should charge faster, even though I haven't really tested this)).
EDIT: quite a good writeup here: http://anythingbutipod.com/2009/08/usb-charging-guide/
i just got this phone a few days ago. i love it. nothing wrong with it.
super fast and everything. im on 2.3.6. no issues. my battery lasts 12 hours easy. and actually up to 26 hours so far.
i dont even feel the need for a custom rom. at least not for now.
but one thing that makes me mad is how slow the phone charges, anyone know why this is ? it's kinda frustrating lol
any way to change this ?
also....i kinda hate that there is no camera button on the actual phone. oh well.
*Edited*
well i dont like to charge unless my battery is on red. so that conflicts, its not always red when i go to sleep. but thanks i'll check it out.
and i dont want to unlock to camera. it's easier to take photos with a button is what im saying
mrljlamon said:
well i dont like to charge unless my battery is on red. so that conflicts, its not always red when i go to sleep. but thanks i'll check it out.
and i dont want to unlock to camera. it's easier to take photos with a button is what im saying
Click to expand...
Click to collapse
If I remember correctly waiting till the battery is completely depleted is not a good thing for our batteries.
i never said completely depleted though.
and yea ive read so many reviews to not do that, and reviews that say you should... and reviews to charge it this much and that much and blah blah. may be a new phone, but none of this is new to me.
Charge current is hardware limited from what I've read. Or atleast for the time being. If your using the phone while charging it'll be significantly slower. Also using wallplug makes a difference. If you've got stuff running while charging try throttling down the CPU while charging.
Other than that I think our phone is limited to 650mah to charge. So 1650/650 is about 2.5 hours with perfect efficiency. Now take into account the power being drawn and how the chargers for li batteries work, that's about 3-4 hrs to be expected.
And don't run li batteries all the way down on a regular basis, its not good. I'm not positive on li ion batteries, but with lipo you generally want to use about %80 of rated capacity to prolong life and power of the cell.
400 mA on USB, 650 on a wall charger, CPU/screen usage counts against these limits - no way to change this
Forgot where I read it. Could be wrong too.
Slow charging for this phone was samsungs way of keeping our phones battery in shape. Hopefully prolonging the life of it. I noticed my 3GS lose about 20% of its full capacity in a couple years. Only time will tell?
Siyah has an option to upping the charging mA I believe.
Sent from my AT&T cellular device.
all useful responses and all make sense. thank you guys.
i dont use it when it charges and yea it does take about 4 hours to charge.
coming from a crappy xperia x10 which took about 2 hours to charge from 0 to 100
but this phone is 10 times better even without a custom rom so i can deal.
thank you guys for ur knowledge.
jdbeitz said:
Siyah has an option to upping the charging mA I believe.
Sent from my AT&T cellular device.
Click to expand...
Click to collapse
He removed it because it turned out not to work. (If it's still there I'm surprised - it should be completely gone.)
It turns out the I9100 has the same limitation as the I777 - charging is handled not by the MAX8997, but by a MAX8922.
Entropy512 said:
He removed it because it turned out not to work. (If it's still there I'm surprised - it should be completely gone.)
It turns out the I9100 has the same limitation as the I777 - charging is handled not by the MAX8997, but by a MAX8922.
Click to expand...
Click to collapse
Its still there. I have a 750mA charger and iit SEEMS to help but I don't know how to check it
Sent from my AT&T cellular device.
CurrentWidget
he removed the high ma charge back to defaults. you can still change them in voltage control but it wont do a damn thing. as entropy said 650 wall 450 misc.
My remix:
EM EYE YOU EYE
SIYAH nara to the rest, I'm rollin with the best.
SGS2 I777
Entropy512 said:
CurrentWidget
Click to expand...
Click to collapse
Does that widget only show charging current?
According to currentwidget i am charging at 1850+ mA. So, that cant be right. I am not using any voltage controller.
thejanitor86 said:
According to currentwidget i am charging at 1850+ mA. So, that cant be right. I am not using any voltage controller.
Click to expand...
Click to collapse
Enjoy the fireworks.
thejanitor86 said:
According to currentwidget i am charging at 1850+ mA. So, that cant be right. I am not using any voltage controller.
Click to expand...
Click to collapse
Hmmm when I used to run a different widget it would report that, but not with current widget. However I'm on a different ROM now, what ROM you on?
I'm currently on the latest ICScrewed
Sent from my SGH-I777 using XDA App
thejanitor86 said:
According to currentwidget i am charging at 1850+ mA. So, that cant be right. I am not using any voltage controller.
Click to expand...
Click to collapse
If you are on Entropy's DD kernel you should divide that number by 2.85
Battery charge current monitoring (CurrentWidget) support - only reports charge current and not discharge, and reports a value 2.85 times the actual current. Use CurrentWidget's "operation on value" to divide by 2.85.
Click to expand...
Click to collapse
As the title says...what's the strongest charger? I've noticed my current one when using the GPS with navigation even with it plugged in it'll still lose battery life. Current model I have does 750mA. Are there better ones out there?
Nosferatu. said:
As the title says...what's the strongest charger? I've noticed my current one when using the GPS with navigation even with it plugged in it'll still lose battery life. Current model I have does 750mA. Are there better ones out there?
Click to expand...
Click to collapse
There are ones made for tablets that outputs 2.1A. Not sure how much our phones can actually draw from it though.
EDIT// Per Entropy
Entropy512 said:
Basically, anything with a rating of 0.7 amps or above which shorts D+ and D- together (indicating a dumb charger) will behave the same.
Our internal charging chip limits to 650 mA on AC and 400 on USB. So the only thing you have to watch out for with cheap chargers are:
1) Voltage WAY off from 5 volts (USB standard) at 650 mA load
2) Does not properly signal "dumb charger" causing the phone to charge at 400 mA
Click to expand...
Click to collapse
gsrrr said:
There are ones made for tablets that outputs 2.1A. Not sure how much our phones can actually draw from it though.
Click to expand...
Click to collapse
right my problem is finding one that not only draws 1000mA and uses it. I have one that when I plug it in it'll say AC charging and on the unit it says 1000mA but it obviously isn't doing it's job if I'm losing battery life while running GPS navigation in the car. Short of me buying a bulking inverter for the car so I can plug a wall outlet plug directly into it I'd prefer to find a USB to 12V that works right.
I briefly thumbed this thread to get a bit more educated but still no luck on finding a product that works...
http://forum.xda-developers.com/showthread.php?t=767961
his edit says 650 on wall outlet 400 on USB no matter how big a unit you buy you'll always get 650 Max. Lower brightness and only have the GPS going
Sent from my SGH-I777 using xda premium
I have the AT$T-branded car charger and when I was using the phone for nav I had no issues with over drain unless I also was streaming Slacker or Pandora at the same time. I now have a truck with built-in nav, so I no longer use the phone for that.
my concern is because I just got a Passport 9500ix and I'm using the live cord so it requires the screen to be on, bluetooth on (which is on anyways for my handsfree), and a GPS signal to be on.
I normally don't use GPS either in the car as I have a built in nav for my vehicle.
I use mine with BT in the car and streaming Slacker with the screen on constant and I never turn off GPS. Have yet to have a charging deficit issue with the aforementioned charger.
well the LiveCable had a USB port on it, plugged it in, and says Charging (AC).
Let's see how this thing holds up I'll re-post in this thread if there's a problem. I'll try it's port instead of my current socket which is not sufficient.
Per another recommendation by Entropy I use SetCPU to limit the cpu to 800 MHz when the navigation app is active. There's still enough power left at this state to allow the phone to build a slight charge if plugged in, or to limit battery drain if it's not.
The simple reality of the situation though is that nav consumes a ton of battery. Running the screen, rendering the maps, running the gps, downloading the maps over cell data etc. all at once consumes a lot of power on any device.
In situations where the battery is getting very low but I still need to use the navigation app I also sometimes just turn off the screen and rely on the audio directions. This helps limit power drain quite a bit.
I wonder how much current he official Samsung car dock supplies?
Sent from my SGH-I777 using xda app-developers app
I still have a motorola rapid charger from a while back. You guys know much more than i do im sure, especially with the mA pull but ive never had drain while running GPS with brightness on high on my motorcycle.
Rrryan2 said:
Per another recommendation by Entropy I use SetCPU to limit the cpu to 800 MHz when the navigation app is active. There's still enough power left at this state to allow the phone to build a slight charge if plugged in, or to limit battery drain if it's not.
The simple reality of the situation though is that nav consumes a ton of battery. Running the screen, rendering the maps, running the gps, downloading the maps over cell data etc. all at once consumes a lot of power on any device.
In situations where the battery is getting very low but I still need to use the navigation app I also sometimes just turn off the screen and rely on the audio directions. This helps limit power drain quite a bit.
I wonder how much current he official Samsung car dock supplies?
Sent from my SGH-I777 using xda app-developers app
Click to expand...
Click to collapse
interesting about setting CPU down when running navigation! I'll have to try that.
Well the good news is with a combination of the stock USB cable plugged into the Live cord for the radar I'm actually charging now while using navigation (slowly but it's charging). Full brightness though it'll either hold steady or drop maybe 1% in 45min or so. Anything but high brightness and it'll charge.
Rrryan2 said:
Per another recommendation by Entropy I use SetCPU to limit the cpu to 800 MHz when the navigation app is active. There's still enough power left at this state to allow the phone to build a slight charge if plugged in, or to limit battery drain if it's not.
The simple reality of the situation though is that nav consumes a ton of battery. Running the screen, rendering the maps, running the gps, downloading the maps over cell data etc. all at once consumes a lot of power on any device.
In situations where the battery is getting very low but I still need to use the navigation app I also sometimes just turn off the screen and rely on the audio directions. This helps limit power drain quite a bit.
I wonder how much current he official Samsung car dock supplies?
Sent from my SGH-I777 using xda app-developers app
Click to expand...
Click to collapse
Samsung car dock just uses whatever its input is. The phone treats it the same as an AC power supply - 650 mA limit regardless of what the power supply capability is.
Interesting note: The power supply's method for signaling a "dumb charger" becomes irrelevant on official docks. All the phone knows is it's docked and it has power, it assumes an AC charger. As a result, power supplies that are intended for iDevices will get detected as USB (400 mA limit on I777) if connected directly, but AC if connected via dock.
Nosferatu. said:
interesting about setting CPU down when running navigation! I'll have to try that.
Click to expand...
Click to collapse
Recent versions of SetCPU make it really easy to set a profile that triggers automatically when the nav app is started. Well worth the $1.99 price of the app.
Nosferatu. said:
Well the good news is with a combination of the stock USB cable plugged into the Live cord for the radar I'm actually charging now while using navigation (slowly but it's charging). Full brightness though it'll either hold steady or drop maybe 1% in 45min or so. Anything but high brightness and it'll charge.
Click to expand...
Click to collapse
Hmm... I confess I haven't paid close attention to it lately, but if I remember right if auto-brightness is selected the screen automatically dims between turns but then ratchets up brightness when a turn is approaching. Maybe setting auto-brightness might handle the issue for you...?
Rrryan2 said:
Recent versions of SetCPU make it really easy to set a profile that triggers automatically when the nav app is started. Well worth the $1.99 price of the app.
Hmm... I confess I haven't paid close attention to it lately, but if I remember right if auto-brightness is selected the screen automatically dims between turns but then ratchets up brightness when a turn is approaching. Maybe setting auto-brightness might handle the issue for you...?
Click to expand...
Click to collapse
-as for SetCPU I'm running that setting now. Once or twice SetCPU has been granted superuser came up while running (fine with me it's doing it's job)
-as for auto brightness I'll try with it later. The software Escort uses is a proprietary program and not directly google's maps program (although it does use it's maps).
https://play.google.com/store/apps/details?id=com.escort.androidui.root&hl=en
you could always flash siyha kernel. it has a setting in ex tweaks to set charging currents. you can up it for all of the devices so usb smart and dumb chargers all charge at 650mA though that might damage a pc usb port... just be careful. and the hardware limits it to 650mA, no more, a lot less
tmckenn2 said:
you could always flash siyha kernel. it has a setting in ex tweaks to set charging currents. you can up it for all of the devices so usb smart and dumb chargers all charge at 650mA though that might damage a pc usb port... just be careful. and the hardware limits it to 650mA, no more, a lot less
Click to expand...
Click to collapse
I do have Siyah kernel any link to a thread about this or a quick how to? I'm sure if I played with it enough I'd figure it out but since you're familiar with the subject I figured you'd hook me up! I tend not to play with these types of tweaks too much on my phone... :good:
I have the OEM Samsung car charger. Thankfully, I can have GPS on while plugged in and the phone still charges up, albeit slowly, but it certainly doesn't drain.
Here's the car charger I have:
http://item.mobileweb.ebay.com/viewitem?itemId=400310588012&index=14&nav=SEARCH&nid=89155668283
Sent from my Samsung Galaxy S II
hi,i just bought new 2.1A charger for my S3 and with current widget it shows 999mA charging rate. so S3 dont charge faster even I have better charger? Because when I play some games with wifi on and brightness on 50 percent with charging my battery % dont go up but slowly go down :/
1A is the limit. Some kernels allow it to go up to 1100
ok, now understand. maybe I can rise by myself that rate? or its dangerous for phone or batttery? Or only kernel devs can do it? Now Im using siyah kernel
scorpio1991 said:
ok, now understand. maybe I can rise by myself that rate? or its dangerous for phone or batttery? Or only kernel devs can do it? Now Im using siyah kernel
Click to expand...
Click to collapse
Your choice but phone can only explode once and custom kernel = no warranty .
jje
oh, I dont need see explode on my table. so maybe I leave like that.
LoL don't worry about your phone exploding.
I've been fast charging for the last 6 months.
There are no adverse effects. No increase in Battery temp while charging and no effect on Battery longevity.
You can safely go up to 1500 with either Yanks or Perseus Kernel
If you choose perseus don't switch off the failsafe.
Don't expect anything dramatic though. I would say that there is a10 to 15% reduction in charge time.
You will notice a much bigger effect with usb fast charge if you increase that from the stock 450 to 1000. Especially when using a car charger.
Sent from my SGS3 using Tapatalk
ROM Sotmax Ultimate V15
Kernel Yank555.lu-V3.2
corrsea said:
no effect on Battery longevity
Click to expand...
Click to collapse
it'll just die sooner
Glebun said:
it'll just die sooner
Click to expand...
Click to collapse
Nah. That depends on your pattern of charging.
I monitor my battery closely.
It's 8 months old with no signs of ageing or change in capacity.
Sent from my SGS3 using Tapatalk
ROM Sotmax Ultimate V15
Kernel Yank555.lu-V3.2
8 months is not a long time
Using charger not usb,it takes 3 hours ,is that normal how much time does it take for you guys?If normal any way to decrease time with other charger?
Alucard said:
Using charger not usb,it takes 3 hours ,is that normal how much time does it take for you guys?If normal any way to decrease time with other charger?
Click to expand...
Click to collapse
Its normal.
Sent from my GT-I9100 using Tapatalk 2
corruptionfreeindia said:
Its normal.
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
Any way to fix this issue by changing charger or setting in rom?
Alucard said:
Any way to fix this issue by changing charger or setting in rom?
Click to expand...
Click to collapse
NO, u cannot
Since for USB charging its capped at 400mA and with wall charger its capped at 650mA
u can see the video link below for more info
http://www.youtube.com/watch?v=FL71G2YEIHU
Sun90 said:
NO, u cannot
Since for USB charging its capped at 400mA and with wall charger its capped at 650mA
u can see the video link below for more info
http://www.youtube.com/watch?v=FL71G2YEIHU
Click to expand...
Click to collapse
So when plugged in wall charger it uses 650 mah or do i need to use the app on the video to increase the voltage?
Sorry....but I can't believe you posted this..... 3 hours IS pretty damn fast.....my old galaxy W used to take 5 to 6 hours.
A lot of things in this world may well be instant.........phone charging ain't EVER gonna be one of them.........
This might be my S2, or it might be my W...but it's definitely CM
Sun90 said:
NO, u cannot
Since for USB charging its capped at 400mA and with wall charger its capped at 650mA
u can see the video link below for more info
http://www.youtube.com/watch?v=FL71G2YEIHU
Click to expand...
Click to collapse
With stweaks you can let usb charge from 450 to 650mAh.
keithross39 said:
Sorry....but I can't believe you posted this..... 3 hours IS pretty damn fast.....my old galaxy W used to take 5 to 6 hours.
A lot of things in this world may well be instant.........phone charging ain't EVER gonna be one of them.........
This might be my S2, or it might be my W...but it's definitely CM
Click to expand...
Click to collapse
My LG p970 with 1500 mah battery used to do 1 and half hour at the most,and when plugged in i could play heavy games and still it could finish charging,but not with s2,and 3 hours dude its not fast for 1650 mah,but i can live with it,at first i thought my phone was broken so this the reason for this question.
neatrom
Alucard said:
My LG p970 with 1500 mah battery used to do 1 and half hour at the most,and when plugged in i could play heavy games and still it could finish charging,but not with s2,and 3 hours dude its not fast for 1650 mah,but i can live with it,at first i thought my phone was broken so this the reason for this question.
Click to expand...
Click to collapse
2:30 H using neat rom
trying yahowy
I use in my SGS2 battery with 3200 mAh (X-Longer CS-SMI9100DL).
It takes 5H to fully charge.
Alucard said:
Any way to fix this issue by changing charger or setting in rom?
Click to expand...
Click to collapse
Use s4 charger. It has 1amp output current. .
But not recommended though.
Sent from my GT-I9100 using Tapatalk 2
Yes, the charging speed Form S2 is very poor. I don't understand this cause other manufactorers do it better without battery issues...
soeschelz said:
Yes, the charging speed Form S2 is very poor. I don't understand this cause other manufactorers do it better without battery issues...
Click to expand...
Click to collapse
Then buy an ICrap or old BlackBerry and get a swirl... live free with equally fast discharge...
Fast charge is disabled by default (on obvious reasons, google it), but hey... anyone is free to make it work if he can find a proper solution.
Said that, 3 hrs should be more like 2 hours or 2 hours and a a half... but seen OP never stated specs, it's all right.
Fevves said:
Then buy an ICrap or old BlackBerry and get a swirl... live free with equally fast discharge...
Fast charge is disabled by default (on obvious reasons, google it), but hey... anyone is free to make it work if he can find a proper solution.
Said that, 3 hrs should be more like 2 hours or 2 hours and a a half... but seen OP never stated specs, it's all right.
Click to expand...
Click to collapse
Oh, you're very polite :/
In fact, the most other phones charge with ~1A+ and they don't have any big draing issues in common. It doesn't matter which OS they run.
Fevves said:
Then buy an ICrap or old BlackBerry and get a swirl... live free with equally fast discharge...
Fast charge is disabled by default (on obvious reasons, google it), but hey... anyone is free to make it work if he can find a proper solution.
Said that, 3 hrs should be more like 2 hours or 2 hours and a a half... but seen OP never stated specs, it's all right.
Click to expand...
Click to collapse
ill never buy an iphone,s2 does charge really slowly and s3 too,but s4 no,so its a matter of samsungs technology which is slow,plus i agree that battery is good for 1650,i guess ill have to get used to it.Im going to send it to samsung to see if they can change something,like the usb port to handle more voltage,do u guys think its possible?
corruptionfreeindia said:
Use s4 charger. It has 1amp output current. .
But not recommended though.
Sent from my GT-I9100 using Tapatalk 2
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Yeap thought of it but i agree i will not risk it,but its frustrating cause im playing gta vice city and it not easy cause battery drains superfast,can i use s2 without a battery connected to charger?
soeschelz said:
Oh, you're very polite :/
In fact, the most other phones charge with ~1A+ and they don't have any big draing issues in common. It doesn't matter which OS they run.
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Yes I am , thank you, cause the slow charge issue was elaborated and mentioned so many time around XDA but seems no one cares to search and read.
This phone with and with original charger, and AFTER teh update from Gingerbread to ICS/JB is charging as per specs. On Gingerbread there was a flaw that permitted to charge it upto 900-1000 mA but the phone was rather hot, I recall charging mine in an hour and a half or 15-20 minutes more, from 2-3% to 100% back when phone had GingerBread.
Alucard said:
ill never buy an iphone,s2 does charge really slowly and s3 too,but s4 no,so its a matter of samsungs technology which is slow,plus i agree that battery is good for 1650,i guess ill have to get used to it.Im going to send it to samsung to see if they can change something,like the usb port to handle more voltage,do u guys think its possible?
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Nope, they won't do anything, but you can try all along if it's free service.
Alucard said:
Yeap thought of it but i agree i will not risk it,but its frustrating cause im playing gta vice city and it not easy cause battery drains superfast,can i use s2 without a battery connected to charger?
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You can use 2.1A output chargers too, it is simply not going to draw all that but you might get the better on the go recharging while you're using the phone with heavy apps. Just think of the dual car chargers - they have both 1A (phone) and 2.1A (tablet) output. SatNav on 1A is zeroing or still draining your phone battery, while 2A can slowly charge it on the go.
You just give it a needed juice and if the discharge is so greater then recharge, there's not much you can do about it.
Call it a flaw, but Samsung did it cause of longevity of their batteries and li-ion technology.
That is why I indicated iCrap and BB - their fast charge is provoking rather fast discharge too cause the battery will not hold it. I have colleagues with BB who're charging in an hour but get their phones depleted in 3 hours of usage... I wouldn't want that from my S2 for sure. :good:
GreekBlood said:
With stweaks you can let usb charge from 450 to 650mAh.
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But it risky for USB port!
corruptionfreeindia said:
Use s4 charger. It has 1amp output current. .
But not recommended though.
Sent from my GT-I9100 using Tapatalk 2
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It doesn't matter what the output current of the charger is... the phone will only draw 650mA.
The charger I got with my S2 delivers 1A but my phone only draws 650mA. Actually the hardware doesn't support it.
IMO, 3hrs is pretty fast for a full charge.
Edit: Just noticed that Fevves already mentioned all that...
adressing sfafrorn
Some kernels have the Option to change the charge rate but even at 650mA the phone will get very hot if you are doing something on it while charging
Sandm4n is right :good: