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Hi,
is there any way you can disable charging via USB. This is a feature available on WinMO devices and should help extend battery life. If you often plug/unplug the USB from the device, the battery will constantly being charged for a short while. Even if LiIon battery that's not good to do all the time.
Anyone found any mod?
Pete
can anyone help???
Has anyone found a mod to this?
Pete
I would also be interested into this. If there isn't an application for this yet then you could also buy a SD card reader USB
and connect it on your computer to transfer files, although it could be a pain.
I am also expecting a solution for this for my Xperia P.
There isnt a solution, it doesnt have to be a solution since a common misconsumption is that Li-On batteries have memory, they dont...
You do know li-ion has limited number of charges. Those 5-10 minute charges everytime the phone is connected counts towards that.
Yes, i believe that in CWM delete battery stats gets rid of that...
Is there a way (app or hack) to enforce android to ask whether to charge or not when plugged to usb port?
It's kind of annoying that every time I connect the phone to pc it starts to charge up.. it can't be 'healthy' to the battery, can it?
WiCiO_MeDi said:
Is there a way (app or hack) to enforce android to ask whether to charge or not when plugged to usb port?
It's kind of annoying that every time I connect the phone to pc it starts to charge up.. it can't be 'healthy' to the battery, can it?
Click to expand...
Click to collapse
It's perfectly "healthy" for LiION battery. The "it's not good to charge it before it's dead" ideology is a left over from the old days of the NiCad and N-MH and other rechargeables.
Yes every once in a while all the experts say to drain your phone battery dead and recharge it.
Otherwise, unless it interferes with your programming or development just leave it alone. It will not hurt your phone or battery.
Now, I am sure there is someone who has/will write an app that will allow your phone to ignore it was even plugged in, and that is also OK for your phone.
WiCiO_MeDi said:
Is there a way (app or hack) to enforce android to ask whether to charge or not when plugged to usb port?
It's kind of annoying that every time I connect the phone to pc it starts to charge up.. it can't be 'healthy' to the battery, can it?
Click to expand...
Click to collapse
I'll add that it's actually better to not fully discharge - As Ibizian said, Lithium Ion does not have a charge memory and factors such as storage temperature have a higher impact. The only reason to discharge fully is to calibrate the 'fuel gauge' for the battery.
here's a good article on the subject:-http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
@drengur
Great article, thanks!
Now I'm much more educated about batteries
Judging from the text my question is now misplaced and my phone charging habits a bit archaic..
(I thought I asked this recently but can't find the post)
OK ... first off GPS / Nav works.
The issue is first off in car use cigarette plug charger, when as a phone only (or playing music via BT) all OK .. battery keeps topped up.
However if I use SatNav the battery cannot keep up .... even though it says charging it slowly discharges ..
I read here some car adapters don't give out full mA current, (that SGS can take) to be 100% sure, I went and bought a 1.5A USB adapter and still the same ... no problem until I switch on SatNav ... then it starts draining ... a couple of % every 15min.
I assume this is simply down to screen taking so much current .... but in very simple terms the phone should be able to keep up via charge when SatNav is enabled.
Anybody got a fix for this ? (screen dimming is enabled)
Ok seems that I am not the only one that is seeing this.
I've owned the S2 for a week and it feels very weird coming from HTC products.
It charges sloooooooow. Also I noticed that battery monitor shows weird values were on the Desire HD it was giving rock solid logical numbers in aspect of Voltage and current.
The s2 sometimes gives me 80% at 3,952 Volts and after a 40min drive 78% and ... 4,012 Volts. It is not stable at all
Just checking the stats in the batt monitor tool.
23:21 at 70% and 3,986 Volts while at 9:00 at 82% and 3,981 Volts.
It doesn't make any sense at all to me
From what I have read is that the charging controller of the S2 is only capable to charge up to a rate of 650mA while the HTC charged at 1000mA (0,65A vs 1A).
Now today I switched off wifi while driving and then it seemed to be very slowly charging. Give that a try and let us know.
Different types of chargers charge at different rates. Mains charges at 650mA, but USB and misc are around 450/550mA. If you're rooted you can change the charging currents in ExTweaks/Voltage Control/setCPU/whatever, however USB is limited as to what it can output anyway, and if you try and force too high a current through, things start to fry.
Sent from my GT-I9100 using XDA
You would not use a Mains charger when using SatNa
It would be a basic requirement that SatNav use in car would be able to keep charged with a USB charger.?
As the same micro USB port is used, how does, phone know its not on Mains?
In answer to above Q ..Wifi is off, I always turn it off when I enable BT.
Sargan said:
You would not use a Mains charger when using SatNa
It would be a basic requirement that SatNav use in car would be able to keep charged with a USB charger.?
As the same micro USB port is used, how does, phone know its not on Mains?
In answer to above Q ..Wifi is off, I always turn it off when I enable BT.
Click to expand...
Click to collapse
OK, that is an 'easy' one. The chargers 'shorten' the 2 data lines.
I've placed shorten between brackets because it doesn't do any harm at all.
I've you install battery monitor you can actually see 'usb connected' or 'ac charging'
As always using waze on my trip to work which takes about 50min.
Started at 58% and went up to 65% when I arrived.
lukesan said:
OK, that is an 'easy' one. The chargers 'shorten' the 2 data lines.
I've placed shorten between brackets because it doesn't do any harm at all.
I've you install battery monitor you can actually see 'usb connected' or 'ac charging'
As always using waze on my trip to work which takes about 50min.
Started at 58% and went up to 65% when I arrived.
Click to expand...
Click to collapse
Here is a simple Q then (maybe I'm naive) .. I am not using USB data port to charge, but a car USB charger point (no chance of any data)
Would charger manufacturers not have this 'short; in place as they are making chargers only ?
If not can you provide any details how to do this ... chargers have plenty of current, be good to get phone to use what it can of this.
dont know how to fix your issue but just to let you know its normal for the phone. Im always on my sat nav with a car charger and never been issues with losing any power. Quite often it comes off charge with more than it was plugged in with.
Hmmm.... I'm using original Blackberry car charger for both BB 9700 and SGS 2.
Yes, it charges slow, but with BT and GPS on it does gain on charge/percentage.
Sargan said:
Here is a simple Q then (maybe I'm naive) .. I am not using USB data port to charge, but a car USB charger point (no chance of any data)
Would charger manufacturers not have this 'short; in place as they are making chargers only ?
Click to expand...
Click to collapse
They should have but unfortunately they often seem to 'forget' it
If not can you provide any details how to do this ... chargers have plenty of current, be good to get phone to use what it can of this.
Click to expand...
Click to collapse
I have attached two photos showing an adapter I fixed myself. Look at the image 'charger-bottom-side.jpg' and notice the red circle. Within this circle you can see the short between the two data lines (D+ and D-). The short is simply a drop of tin-solder.
Sargan said:
Here is a simple Q then (maybe I'm naive) .. I am not using USB data port to charge, but a car USB charger point (no chance of any data)
Would charger manufacturers not have this 'short; in place as they are making chargers only ?
If not can you provide any details how to do this ... chargers have plenty of current, be good to get phone to use what it can of this.
Click to expand...
Click to collapse
As I said in my post. Install battery monitor and see if it says 'usb charging' or ac charging
lukesan said:
As I said in my post. Install battery monitor and see if it says 'usb charging' or ac charging
Click to expand...
Click to collapse
Which app is this (devleoper name ?)... and I'll get it ... just looked on market ... and there are 5 apps with this name.
Sargan said:
Which app is this (devleoper name ?)... and I'll get it ... just looked on market ... and there are 5 apps with this name.
Click to expand...
Click to collapse
3C
Sargan said:
Which app is this (devleoper name ?)... and I'll get it ... just looked on market ... and there are 5 apps with this name.
Click to expand...
Click to collapse
I have now purchased a new lead and charger (to be sure)
Running the App it shows "Charging AC Plugged"
It cannot keep up with current demand when Bluetooth & GPS active ... slowly discharges.
I have had the S2 for about a month now.
Seems like Sygic is the only GPS soft which I tried that doesn't hit the cpu 100% all the time.
I did a test over the weekend and with everything 'on' it slowly charged the phone.
yes
yeah, battery monitor will let you know that.
also suffered from this in the past
I have had the discharge problem using sat nav (Copilot live premium) and a car charger (various car chargers actually). Stock S2 with generic UK firmware. The problem exists on 4.03 and 4.04 - not sure about previous GB as updated to ICS as soon as I bought the phone.
I have found that if I apply battery save mode and turn down the screen brightness the charge just about holds station.
But the strangest thing I have found, although reading around I have not seen it mentioned elsewhere, is that if I enable mobile data the phone charges just fine whilst using sat nav. The problem only arises when I disable the data connection. This came to my attention whilst abroad where I deactivated data to avoid preposterous roaming charges.
This rather implies to me that something is trying to use the mobile data connection when it is deactivated and is causing battery drain when it can't. This could be any app of course, but the problem only rears its head when I use the sat nav (power hungry) with the mobile data turned off.
Has anyone else noticed this? Any advice on narrowing down which app/process this might be would be welcome.
Sargan said:
I have now purchased a new lead and charger (to be sure)
Running the App it shows "Charging AC Plugged"
It cannot keep up with current demand when Bluetooth & GPS active ... slowly discharges.
Click to expand...
Click to collapse
Sorry for bumping into this thread but I think I can help.
Correct me if I'm wrong, but I think your question is:
-Battery charging cannot keep up with discharging rate while using GPS and Bluetooth.
Reason for this problem:
-This occurs because usb charging further is lower than charging via wall charger, hence the battery heroes discharging when the demand is higher than the charging rate.
Solution:
-we need to increase usb charging current to equals the Ac charging current
How is that possible:
1.Root access is needed. If you don't already have root access key me know
2.custom kernel needed.
-You need to flash one of, Siyah, Dorimanx or dream kernel.
-Any of these kernels has the option to increase usb charging current
-move to 3. If you are already running any of the listed kernels.
3.after flashing the custom kernel, install extweaks from market.
-open extweaks
-under "misc", change the charging current to option 3.
Done
lukesan said:
I have had the S2 for about a month now.
Seems like Sygic is the only GPS soft which I tried that doesn't hit the cpu 100% all the time.
I did a test over the weekend and with everything 'on' it slowly charged the phone.
Click to expand...
Click to collapse
Swyped from my Samsung Galaxy SII
Jokesy said:
Reason for this problem:
-This occurs because usb charging further is lower than charging via wall charger, hence the battery heroes discharging when the demand is higher than the charging rate.
Click to expand...
Click to collapse
Wrong. Just read your own quote from Sargan's post:
Sargan said:
Running the App it shows "Charging AC Plugged"
Click to expand...
Click to collapse
Jokesy said:
Solution:
-we need to increase usb charging current to equals the Ac charging current
How is that possible:
1.Root access is needed. If you don't already have root access key me know
2.custom kernel needed.
-You need to flash one of, Siyah, Dorimanx or dream kernel.
-Any of these kernels has the option to increase usb charging current
-move to 3. If you are already running any of the listed kernels.
3.after flashing the custom kernel, install extweaks from market.
-open extweaks
-under "misc", change the charging current to option 3.
Done
Click to expand...
Click to collapse
I advise not to do that because:
It will not solve this problem as charging from AC is already detected by the device (see above).
The option is dangerous and will enable (if working at all) charging with the higher current limits from any USB port.
good to know
Jokesy said:
Sorry for bumping into this thread but I think I can help.
Correct me if I'm wrong, but I think your question is:
-Battery charging cannot keep up with discharging rate while using GPS and Bluetooth.
Click to expand...
Click to collapse
Actually in my case when using sat nav it will charge with mobile data enabled, but will discharge (whilst connected to the car charger/wall charger) without data enabled.
I have read multiple posts talking about battery life problems suffered after the ICS update. However, my question is regarding the time it takes to charge the phone using a usb. I know the fact that usb charging is slower than wall charging. But what i am comparing is usb charging before and after the ICS update. My phone is not rooted and has the OTA update from motorola. Also, it is a RAZR and not RAZR MAX.
The question is, has anybody noticed that usb charging is slower after the ICS update? I used to plug in my phone with usually 50-60% battery life in the mornings and it always used to be fully charged before lunch. Now, the whole day goes by and it barely reaches 100%.
The phone, the usb cable and the computer are all the same. Only the software has changed.
My initial guess is that the 'charge only' option that used to be available before did a better job of sending more current than the options available under ICS.
Does anybody know of a way to fix it ? With or without root?
Thanks,
Kavik Bachani
I ran into your post after googling the same issue for my cousin; also started after ICS upgrade, but her phone is Xperia S, and its not only affecting USB charging, but even the wall charger is much slower now, more than 4hrs plugged for 30% charge only, when it used to take less than 2hrs for full charge before.
I've always had trouble charging my phone on a computer via USB. It goes way faster when on a wall charger.
kavik_bachani316 said:
I have read multiple posts talking about battery life problems suffered after the ICS update. However, my question is regarding the time it takes to charge the phone using a usb. I know the fact that usb charging is slower than wall charging. But what i am comparing is usb charging before and after the ICS update. My phone is not rooted and has the OTA update from motorola. Also, it is a RAZR and not RAZR MAX.
The question is, has anybody noticed that usb charging is slower after the ICS update? I used to plug in my phone with usually 50-60% battery life in the mornings and it always used to be fully charged before lunch. Now, the whole day goes by and it barely reaches 100%.
The phone, the usb cable and the computer are all the same. Only the software has changed.
My initial guess is that the 'charge only' option that used to be available before did a better job of sending more current than the options available under ICS.
Does anybody know of a way to fix it ? With or without root?
Thanks,
Kavik Bachani
Click to expand...
Click to collapse
there can be more than one issue for this.
1) could be the battery stat. but to wipe this you need to root your phone. Maybe just charge and discharge it a few times completely (till it shut's down automatically)
2) other charging source? are you using another USB-Port to charge it? it could happen, cause your phone has to 'tell' the USB port it's some kind of high power device to get 500mA and not like mouse and keyboard only 100mA. does the PC recognize the phone? are your usb ports unlocked (yeah, i know... even locked ports supports power, but maybe not enough...)?
3) do you charge it while running? or in shut down state? ICS seems to drains some more battery life while running then GB...
PS: charge only option is no more usable but ask an IT-provider to get a 'power-only' usb cable. i've got some and it only provides current, it's like normally charging
PPS: best rooting solution > get Arctic ICS (GSM/CDMA) or Epsilon (GSM) ROM, usb charging in less then 2h! for better result use the 'power-only' usb cable mentioned above
Another essencial tip is always charge through back usb, never in front and disable wifi, gps, data, bluetooth it will make phone charge more and faster.
xpc21 said:
Another essencial tip is always charge through back usb, never in front and disable wifi, gps, data, bluetooth it will make phone charge more and faster.
Click to expand...
Click to collapse
mentioned that too, is there some explainable reason for the front / back end differences?
I've always had trouble charging my phone on a computer via USB. It goes way faster when on a wall charger.
Click to expand...
Click to collapse
I agree. Wall charging is always way faster than usb charging but my wall charger usually stays at home. That is why, i use the usb charging option at work.
there can be more than one issue for this.
1) could be the battery stat. but to wipe this you need to root your phone. Maybe just charge and discharge it a few times completely (till it shut's down automatically)
Click to expand...
Click to collapse
My phone has discharged completely twice since the ICS update. I am not sure but that might have reset the battery stat. Is there a way to check it on a non rooted device?
2) other charging source? are you using another USB-Port to charge it? it could happen, cause your phone has to 'tell' the USB port it's some kind of high power device to get 500mA and not like mouse and keyboard only 100mA. does the PC recognize the phone? are your usb ports unlocked (yeah, i know... even locked ports supports power, but maybe not enough...)?
Click to expand...
Click to collapse
The phone is plugged in to a USB port on the computer and is recognized as a Motorola RAZR. I also have the Motorola Device Manager installed which i believe installs all the necessary drivers.
Also, I have tried multiple ports (front and back) and i have seen similar results in terms of the time it takes to fully charge the phone.
3) do you charge it while running? or in shut down state? ICS seems to drains some more battery life while running then GB...
Click to expand...
Click to collapse
I do charge it while running and wifi on. Data, Bluetooth, GPS are off. I always used to charge it this way. Its sad that the same state in ICS drains more battery than GB.
PS: charge only option is no more usable but ask an IT-provider to get a 'power-only' usb cable. i've got some and it only provides current, it's like normally charging
Click to expand...
Click to collapse
I didn't know of a charge only usb cable. I'll try to get my hands on one and let you know the results.
PPS: best rooting solution > get Arctic ICS (GSM/CDMA) or Epsilon (GSM) ROM, usb charging in less then 2h! for better result use the 'power-only' usb cable mentioned above
Click to expand...
Click to collapse
I have so far avoided the root option since i am a little scared of bricking the phone / what if i am not able to restore it back to stock / unable to update phone to future software versions etc.
How does rooting the phone increases the speed of usb charging? Is the software that is being flashed on the device modified in certain ways that is not done as part of the .211 OTA update?
I have also read about the .215 leak. Do you know if the usb charging speeds are different between the two .211 and .215 versions?
kavik_bachani316 said:
...
I have also read about the .215 leak. Do you know if the usb charging speeds are different between the two .211 and .215 versions?
Click to expand...
Click to collapse
For me i don't have any experiences with CDMA phones but what i read was a significant better signal state and battery life in .215 ...
Looks like they improved the system processes / memory usage to get less battery drain. This should be good for charging, because while charging it would drain less battery life / it's charged faster.
kavik_bachani316 said:
I have so far avoided the root option since i am a little scared of bricking the phone / what if i am not able to restore it back to stock / unable to update phone to future software versions etc.
How does rooting the phone increases the speed of usb charging? Is the software that is being flashed on the device modified in certain ways that is not done as part of the .211 OTA update?
Click to expand...
Click to collapse
Rooting itself will not bring you any advantage in battery drain / charging times. But a rooted phone is open for kernel tweaks and custom ROMs.
Tweaks are used to improve the CPU to get more power or better battery life.
ROMs can be de-odexed / de-bloated to get rid of every senseless app or system process that drains battery while running in the background.
And this improves your battery life AND charge times
PS: There should be some stock ROM from EternityProject as emergency unbrick for CDMA too. Just use the search function, you should be able to go back to stock from every custom ROM.
For some reason my phone don't always use fast charging when I plug it in. Sometimes it will just say cable charging and takes couple hours to charge and some times it will say fast charge... Its really random.
Does anyone know why this is happening?
Using the 2.0 amp charger included will fast charge your phone.
orangeswim said:
Using the 2.0 amp charger included will fast charge your phone.
Click to expand...
Click to collapse
That's what I am using but still, it doesn't always fast charge and that's why I asked the question
Hmm....mine goes to fast charge as soon as I plug it in. Get gsam battery monitor, https://play.google.com/store/apps/details?id=com.gsamlabs.bbm&hl=en
It has detailed charts on charging info. Maybe you can track down if there is a pattern.
odobo said:
For some reason my phone don't always use fast charging when I plug it in. Sometimes it will just say cable charging and takes couple hours to charge and some times it will say fast charge... Its really random.
Does anyone know why this is happening?
Click to expand...
Click to collapse
check the battery setting! and try a different cable!
I know one issue was that using the included charger, if you dont make sure the cable is plugged all the way into it it will not fast charge. It will still do the cable charge, but if you plug it in just a bit harder it will switch to fast charge. Might check that.
odobo said:
For some reason my phone don't always use fast charging when I plug it in. Sometimes it will just say cable charging and takes couple hours to charge and some times it will say fast charge... Its really random.
Does anyone know why this is happening?
Click to expand...
Click to collapse
User manual says:
Increasing the charging speed
To increase the charging speed, turn the device or its screen off when you charge the battery.
• While charging the battery when the device is turned off, the icon appears on the
screen.
• You cannot use the fast charging feature when the screen is turned on. Turn off the
screen to increase the charging speed.
• You can check the remaining charge time on the screen. The actual remaining time
may vary depending on the charging conditions.
• You cannot use the built-in fast charging feature when you charge the battery
using a standard battery charger.
• If the device heats up or the ambient air temperature rises, the charging speed may
decrease automatically. This is a normal operating condition to prevent damage to
the device.
Click to expand...
Click to collapse
So maybe it's too hot in your area?
orangeswim said:
Hmm....mine goes to fast charge as soon as I plug it in. Get gsam battery monitor, https://play.google.com/store/apps/details?id=com.gsamlabs.bbm&hl=en
It has detailed charts on charging info. Maybe you can track down if there is a pattern.
Click to expand...
Click to collapse
yea I installed that too... but not sure if the info can help me figure out whats triggering the fast charging or not
If it's not related to what turt mentioned about temperature., I would consider getting it exchanged while it's early.
I got mine from best buy and they have 14 day exchange/return.
My battery temp has been max 94F.
kamranhaghighi said:
check the battery setting! and try a different cable!
Click to expand...
Click to collapse
what battery setting are you suggesting? and I can get the fast charging with the same cable... just not reliably thats why I am not sure if there is some conditions the phone needs to be in before it will happen
schollianmj said:
I know one issue was that using the included charger, if you dont make sure the cable is plugged all the way into it it will not fast charge. It will still do the cable charge, but if you plug it in just a bit harder it will switch to fast charge. Might check that.
Click to expand...
Click to collapse
that could be it... and the other thing I found is if I plug it in with the screen off it seems to do the trick
turt said:
User manual says:
So maybe it's too hot in your area?
Click to expand...
Click to collapse
no... I dont think its temp related. Last night after 3 tries I can finally get it to fast charge and the trick I think is to get the screen off before plugging in the cable.
I wonder if the length of the USB connector has something to do with it too cause I bought a extra QC2.0 charger and I can get it to fast charge reliably everytime, but the QC 2.0 car charger doesnt work for me at all with the cable that came with it. I might need to try a different cable and see
odobo said:
what battery setting are you suggesting? and I can get the fast charging with the same cable... just not reliably thats why I am not sure if there is some conditions the phone needs to be in before it will happen
Click to expand...
Click to collapse
if its just unreliable forget about the setting! so you have tried other cables?! thats all i can think off! im not a pro just thought it might be that!
schollianmj said:
I know one issue was that using the included charger, if you dont make sure the cable is plugged all the way into it it will not fast charge. It will still do the cable charge, but if you plug it in just a bit harder it will switch to fast charge. Might check that.
Click to expand...
Click to collapse
THANK YOU! Top reply I was trying to work out why it wouldn't fast charge, even when using the supplied charger and cable, however I hadn't realised that I needed to push the USB A end (the bit the plugs into the charger) that extra bit - Fast Charge now working and return avoided!
my phone just started the same issue. till last night it was working perfectly fine but all of a sudden when I put my phone to charging this morning, it says cable charging instead of fast charging, I've tried different chargers as well but still no luck. I thought maybe it was a software issue so I should try a factory reset. In order to make backup, I tried connecting to my laptop but windows refused to detect my device and it says your device is not working properly. Anyhow I did a factory reset (loosing all my data) still it shows cable charging. Any idea what this problem is about?
Try plugging in while ur screen is off. It did the trick to mine
i was just about to post about this same problem, til i looked over, and my phone switched from "charging" to "fast charging" once my phone was over 15% in battery life. So thats what i think it is..... If you plug in with less than 15% battery life, it is not powerful enough to fast charge. Once it hits 15% it will be powerful enough to "fast charge". does this seem like a reasonable explanation, cuz thats all i got LOL
I've had the same issue on and off with my Edge+ and have realized there are 2 things that will help start fast charging. First is to close all open apps and notifications, second turn your screen off and wait a few seconds and plug in. Hopefully this will help