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Hey! Guys I am having problems with the USB Charging, it seems to drain the 100% charged battery quicker (while using the phone, unplugged NOT charging) like one day and I have to charge the phone again, But when i charge my phone (100% charge) using the wall charger my phone lasts two and a half days. My wife also said she experiences the same thing with USB charged HTC Trinity Phone. I have tried on different computers and laptops as well but still the same and i know that USB charging will take longer to charge (500mah) so i leave the phone over night like 9 hours but the phone drains like juice. What kind of a Phenomenon is this.. Guys i need your humble thoughts and solutions on this because this is becoming a big problem for me since i use USB charging mostly... Plus I am not a very hardcore app, wifi or games user on the phone either... Darn...
same problem
I don't know why but i meting with the same problem. No idea why this happening it should be same from electric perspective.
When the phone cahrges via computer USB, the phone charges at a rate of around 90mA due to the phone running. Try with the phone off
Tried that as well, but it seems to be the quite the same but little difference since it last a little longer but still drained out in one freakin day. I am pulling my hair off because of this problem.. darn why is this just so... i mean like in the second post the process should be electronically identical right. only difference is it takes more time to charge from USB.... Grrrrr!
my phone hardly last one day..How do you make it last for 2 1/2 days?
xiyan2127 said:
Tried that as well, but it seems to be the quite the same but little difference since it last a little longer but still drained out in one freakin day. I am pulling my hair off because of this problem.. darn why is this just so... i mean like in the second post the process should be electronically identical right. only difference is it takes more time to charge from USB.... Grrrrr!
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Battery indicators do lie.
it all depends upon if your board can deliver enough current to run the phone and charge it. on my rig i see no difference between wall charger and laptop or desktop charging
the laptop is a studio 15 with an i5 and h55 chipset and the desktop is a core 2d machine with a p45 series chipset.
you can tell the phone to disable usb charging if the phone is on while connected to usb to see if that helps (it will still charge via USB if the phone is off)
anhyeuemmaimai said:
it all depends upon if your board can deliver enough current to run the phone and charge it. on my rig i see no difference between wall charger and laptop or desktop charging
the laptop is a studio 15 with an i5 and h55 chipset and the desktop is a core 2d machine with a p45 series chipset.
you can tell the phone to disable usb charging if the phone is on while connected to usb to see if that helps (it will still charge via USB if the phone is off)
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any usb not from china will give about 500mah, whether it be my i7 laptop or z550 vaio, so specific components shouldn't matter.
usb charges a little slower, but no reason it should not last as long once its got all the amps it can take. weird situation man...my huge list of htc phones never had an issue, and i do use a work computer to charge via usb sometimes
Thanks for your thoughts guys!!!
Weird... Yeah thats the thing i am also using a Core i7 930 CPU and my motherboard is ASUS ROG Rampage III Gene board, so i don't think my system is the problem here...
The wall charger delives 2 amperes to our HTC phones while usb ports delivery only 500mA (0,5 amperes). It's not only a matter of charging slower but you can't deliver the full charge the battery needs to revert the chemical process of discharging when tou use usb port. With 2amperes the charging process reachs it's maximum.
bravo261 said:
any usb not from china will give about 500mah, whether it be my i7 laptop or z550 vaio, so specific components shouldn't matter.
usb charges a little slower, but no reason it should not last as long once its got all the amps it can take. weird situation man...my huge list of htc phones never had an issue, and i do use a work computer to charge via usb sometimes
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Click to collapse
some cheap mainboards cannot supply even 500ma. a good qaulity board can supply more.
want to test it? put your HD2 in the first USB port and then put a high power device like a wireless dongle or external USB HDD in the second and see what happens. if your board cannot power both, you'll drop your wireless/hdd connection when you plug your phone in.
Phone Usage...
mbrown3460 said:
my phone hardly last one day..How do you make it last for 2 1/2 days?
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Sir I have said that I am not a very heavy phone using guy, I am an average phone user. Plus I dont use the 3g or data connection here in my country since the connections are snail slow and prices are over the head and there is no unlimited data package here yet. I use the Wifi sometimes to update my twitter, Rss hub, facebook, weather tabs and very little market place... So my phone lasts for two and a half days when i use the wall charger.
Oh yeah and Guys, i tried recalibrating the battery by using it till the phone died completely and recharging it with USB (phone turned off) for like a day but still it drains faster than the wall charger rate.... I dont understand really...
Bicalho said:
The wall charger delives 2 amperes to our HTC phones while usb ports delivery only 500mA (0,5 amperes). It's not only a matter of charging slower but you can't deliver the full charge the battery needs to revert the chemical process of discharging when tou use usb port. With 2amperes the charging process reachs it's maximum.
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This is why. The awnser was given, but people ignored it. To fully charge a battery it needs more amperes. Use the wall charger. The battery indicator lies, and is unable to acuratly measure a fully charged battery. It'll display 100% when it's roughly 70%.
Our batteries use Lithium ions as means of electricity. They use a Lithium compound, and move the ions from the negative to the positive pole. When there are no more ions to move, our batteries are discharged. When we connect to an external power source, the higher voltage will draw the ions back to the "negative pole".
USB supplies 500 mA (that's 0.5A) @ 5V (per specification, some motherboards won't be able to go that high, depending number of USB devices connected, etc)
European electrical sockets supply up to 2.5A @ 230V and although your HTC charger should only output 1A @ 5V, the topping off will occur much quicker.
Basically the more you have to charge, the more time it takes, and the bigger the effort on the current to pull the remaining ions back to the negative pole.
I am finding that in Android, my phone will not charge with either wall or usb charging. The phone shows that it is charging but does not actually charge. This is really unacceptable. It works in Windows Mobile but is not a listed problem of the Android builds. Are all of you using WM6.5 or Android? Or both?
jaylc said:
I am finding that in Android, my phone will not charge with either wall or usb charging. The phone shows that it is charging but does not actually charge. This is really unacceptable. It works in Windows Mobile but is not a listed problem of the Android builds. Are all of you using WM6.5 or Android? Or both?
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I can Charge my HD2 well on both OS's but still when compared to android and WinMo when i use the USB Android does discharge heavily than WinMO and Android does the same when compared to WinMO on wall charger use as well... So nothing much more to say at that...
Charging mobiles using USB takes alot longer than using power outlet and this is valid for all kind of mobiles, ALSO when you charge by USB your mobiles battery drains much faster than charging from power outlet. (Electrical Engineers say so).
NOW why you don't use power outlet to charge your HD2 rather than using USB?
There are safety measures in charging from USB like, static issues from wall charger in some countries and then there is the ease of use from charging from PC while you are at work or away on a business trip..
mbrown3460 said:
my phone hardly last one day..How do you make it last for 2 1/2 days?
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Mine lives for 5 days on just 1 charge, and with normal use (every 2/3 hours updating weather and twitter, sometimes call, sometimes texting, sometimes using internet)
Is it alright to have the SGT plugged into a USB port all day (approx 9hrs) ? I'd like to have it keep its charge (maybe even gain a little) while I'm at work so I can have a decent amount of juice for the trip home and until i go to bed. Or is this a good way of burning out my battery real quick? Thoughts?
Oh and as a side note on USB charging, I was able to get from 15% to 99% in 7hrs with the screen off the whole time.
Is it a slow-charging USB port? Or is it a powered hub? If I'm not mistaken, slow-charging a lithium-ion based battery pack is actually better for its life as opposed to rapid charging.
Its the regular port on the PC not even high speed usb so i guess it isn't powered.hmm guess the charging part is OK..but what about leaving it plugged all day even if the battery is at 100%?
Sent from my GT-P1000 using XDA App
All usb ports are powered by definition. They can supply up to 500ma (half an amp). Dont worry about leaving your tab plugged in, devices are smart enough these days not to overcharge the battery.
Sent from my GT-P1000 using XDA App
TheCoda said:
All usb ports are powered by definition. They can supply up to 500ma (half an amp). Dont worry about leaving your tab plugged in, devices are smart enough these days not to overcharge the battery.
Sent from my GT-P1000 using XDA App
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Coda is right, technically they all have power . If not, how would any device charge? I guess I really meant to say USB ports charge at a higher MA or something for rapid charging (wall-socket USB adapters?).
Also, Coda is right again. Devices these days are fairly smart. I typically leave my HD2 plugged in all the time with no problems.
itll be just fine plugged in!
ive been part-charging mine at random intervals (sometimes for 20 mins at a time a few times a day) and leaving it charging over a day from both powered hub and charger over about five months... though i have had two or three near total discharges
the battery has got better, which is what you would expect from the tech - sammy even provides a nice notification telling you the device is fully chraged
i wonder if they put that in there to account for unexpected battery problems down the line? in any case, ive read that low-powered charging, even unregistered by the battery, will increase the lifetime of the battery and also charge at approximately the same rate... ive seen this with my phones charging over pc usb
Great! Nothing to worry about then. The tab would look really cool on my office desk sporting the same screensaver as my PC ..'the Matrix' scrolling code.
I think it is OK. I bought a 2d adapter, one for the office. Since Sammy is selling docks, it also means that it can be powered all times. On the other hand I remember my Archos which I used to leave it on its dock all times... battery was killed in a short time. When you sell multimedia charging docks it means that you can leave it there, no? Not in the case of Archos.
So I realized that if I charge my phone using the USB ports on my laptop, the phones batter lasts much longer than if I charged it through the power outlet in the wall.
I didn't take any screenshots because I didn't think of it at the time, but through the laptop I got about 2 days and 14 hours with moderate use and I had 18% battery left.
Through the wall charger, I get about 18 hours with moderate use.
Can anyone else confirm?
Not sure, but i do feel that it charge slower on the USB port of my laptop. Maybe it have something to do with your theory.
Centranly!
USB port can give max 500mA but the wall charger can supply with 700mA (+40%!!!)
I have a charge-only cable that charges over my MBP's USB faster than any AC adapter I've tried. Charges last about the same regardless of power source though...
Sent from my MB860 using xda premium
emandt said:
Centranly!
USB port can give max 500mA but the wall charger can supply with 700mA (+40%!!!)
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USB 2.0 will provide up to 500mA while USB 3.0 can provide 800mA. Stock Atrix wall charger I have is 850mA.
How do you verify what mA you're using? Is there a good tool for that?
CaelanT said:
USB 2.0 will provide up to 500mA while USB 3.0 can provide 800mA. Stock Atrix wall charger I have is 850mA.
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IIRC, these are minimum specs for the standards. Could be wrong, but I believe that true output varies card to card/port to port.
Sent from my MB860 using xda premium
Plasmamuffins said:
So I realized that if I charge my phone using the USB ports on my laptop, the phones batter lasts much longer than if I charged it through the power outlet in the wall.
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Click to collapse
I've heard this theory before, but didn't see noticeable difference on my phone to back this claim.
I do agree with OP that charging the phone connected to a laptop USB port would give longer battery life. I have noticed this on several occasions already. I also agree the charge process would be much slower. With my phone, with 5% charge or less, the battery icon randomly doesn't animate while being charged.
That a side, I'm also sure something is broken in Atrix design, be it hardware, battery, or both but something is not right. I can't even charge my phone from a power point with the supplied cable and the plug [UK].
I know Motorola won't admit neither fix this problem in Gingerbread but might do, quietly, in ICS. One other possibility I can think of is that the supplied plugs are the culprit.
Today i charged the phone from my laptop, and im not feeling any difference at all. Its discharging at my usual pace. :/
Sent from my MB860 using XDA
Furthermore to my previous post, I have finally found the opportunity to test my phone with a Blackberry charger and it started charging the phone from the power point. That means the Motorola UK plugs I have are broken.
I'm arranging to purchase a Blackberry charger now. Don't want waste my time and money with Motorola anymore.
Hi guys,
currently having a problem with my xbox 360 charging my Nexus 4...
basically i put my nexus on charge (usb cable from xbox 360) over night and it clearly said its charging, so i woke up the next morning and the battery % was as i left it, but it still clearly says charging? this has happen to me twice this week... has anyone else had a problem like this?
forgot to mention, i have always charged my mobile devices using the xbox 360 and never had any problems before...
Maybe try other cables?
I have had similar issues with phones in the past where certain cables worked and some didn't.
accidently gave u a thx I had this problem with all my phones trying to charge them with my PS3 or PC. With my PS it charged 1-2% and with my PC a bit slower than normally. I think its the bad electricity supply over usb
jmcsk8 said:
Maybe try other cables?
I have had similar issues with phones in the past where certain cables worked and some didn't.
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Click to collapse
i'm currently charging right now on work laptop with same cable and its charging fine?
bustem said:
accidently gave u a thx I had this problem with all my phones trying to charge them with my PS3 or PC. With my PS it charged 1-2% and with my PC a bit slower than normally. I think its the bad electricity supply over usb
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Click to collapse
true, it could be... but i charge my samsung galaxy s2 using same method and that charges up fine without problems...
I have no problems with my 360'
But why would you keep your Xbox running at night to charge your iPhone??
Better use a wall charger. It charges faster, and is cheaper..
Sent from my GT-I9300 using xda app-developers app
Davanzze said:
I have no problems with my 360'
But why would you keep your Xbox running at night to charge your iPhone??
Better use a wall charger. It charges faster, and is cheaper..
Sent from my GT-I9300 using xda app-developers app
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Click to collapse
weirdly i dont leave the xbox on... the usb ports are still live when it is switched off and because of that reason, i use it to charge my phone.
PS its a Nexus not an iPhone lol
killa_byte said:
weirdly i dont leave the xbox on... the usb ports are still live when it is switched off and because of that reason, i use it to charge my phone.
PS its a Nexus not an iPhone lol
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Click to collapse
kk, haha i know its not an iPhone, but my swype made phone into iphone
killa_byte said:
Hi guys,
currently having a problem with my xbox 360 charging my Nexus 4...
basically i put my nexus on charge (usb cable from xbox 360) over night and it clearly said its charging, so i woke up the next morning and the battery % was as i left it, but it still clearly says charging? this has happen to me twice this week... has anyone else had a problem like this?
Click to expand...
Click to collapse
I had similar issues while charging through my laptop, My phone would say charging, meanwhile it would be discharging
I think it has to do with the phone using more power than the port is giving out. Basically some apps you have one your phone is using so much battery that the charger is not charging because the required power to run the phone is greater than the charge is giving. I'm thinking this is becasue the phone has so much RAM that all the background apps are using more and more power. It's like charging a Laptop through your Xbox USB port, the laptop uses WAY too much power for it to be getting charged through a measly USB port.
Nonetheless, I stopped charging my phone through my laptop and just plugged it in the wall. It charges way faster anyway (my charging usually takes 2 hours when it's really low to full battery)
Even if it does charge, it's not likely to charge well; the Nexus 4's charger is 1.2 amps. The Xbox USB ports likely put out less than half that. Unless you have an S model, in which case the rear "Kinect" port is "high-powered," which likely means 1.0 amps.
I'm charging off my AirPort Extreme without issue...albeit it slow. Since I charge at night, it's a non-issue. OP, have you tried swapping USB cable?
Does the Xbox 360 temporarily disable its USB port if you try to pull to much power from them?
The Nexus 4 requires more than what is supplied...
uberSlackr could be right, normal usb ports are 5volts,500mah, so 5 volts standby, you should be able to charge even at a slow rate, windows 7 has an option to turn off usb ports to save power unless you disable it.maybe xbox has a similar power saving function.
samsung s2 max charging rate is at 650mah, my nexus charger is 1.2amps, so 1 amp draws too much.
tibere86 said:
I'm charging off my AirPort Extreme without issue...albeit it slow. Since I charge at night, it's a non-issue. OP, have you tried swapping USB cable?
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Click to collapse
yes, i've tried changing the cable and its the same... i believe the comments above have explained it much clearly to me and make me understand why its not charging (xbox usb being 500 mah and the phone needs 1.2 amp... so looks like i will have to use my wall charger from now on)
i appreciate the help guys!! :good:
Hey all
I'm having this really strange issue, trying to figure out if the phone is at fault and whether I should RMA it.
When I try to charge it through my Macbook pro, it gets to around 16% and stops charging. When I charge it through my car's USB to 9V converter it manages to charge properly but loses that charge very quickly.
When my phone is connected to a power outlet (via a samsung convertor that came with my Nexus S), it charges well and holds the charge for a while.
Should I RMA?
The voltage doesn't make any difference. (Well it does, but it simply won't charge if the voltage is too low) It's the current you should be worried about. May be your Macbook pro and your car USB simply isn't giving out enough current to charge the phone? Laptop usb ports tend to have very low power rating.
beegbear said:
Hey all
I'm having this really strange issue, trying to figure out if the phone is at fault and whether I should RMA it.
When I try to charge it through my Macbook pro, it gets to around 16% and stops charging. When I charge it through my car's USB to 9V converter it manages to charge properly but loses that charge very quickly.
When my phone is connected to a power outlet (via a samsung convertor that came with my Nexus S), it charges well and holds the charge for a while.
Should I RMA?
Click to expand...
Click to collapse
Well, my ENTRY PROCESS of RMA took 15 days. Im pretty lucky .
My nexus 4 got bricked, for a battery issue, I recomend dont charge the N4 in cars... :S
snapper.fishes said:
The voltage doesn't make any difference. (Well it does, but it simply won't charge if the voltage is too low) It's the current you should be worried about. May be your Macbook pro and your car USB simply isn't giving out enough current to charge the phone? Laptop usb ports tend to have very low power rating.
Click to expand...
Click to collapse
My computer has no issues charging any other device...
And to the gentleman that recommended not to charge it in a car.. well that'd make my phone far less useful. I need to be able to charge it in my car.