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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%!!!)
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
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,
I hope someone can help me. My Transformer doesn't charge anymore since yesterday.
Tablet was around 10% when i put the charger in, but the message 'Connect your charger'doesn't go away.
Strange thing is that whenever i plug it in and TF is off, it will turn on, so I guess the wall charger and cable are functioning.
Also when connecting it to my PC I can sync.
I've tried already all the solutions i could find online:
- put the wall charger in the freezer --> didn't work
- cold boot --> didn't work
- factory reset --> didn't work
- tried a different wall charger and connected the wire to a portable battery --> didn't work
- flashed the ROM again --> didn't work
The only way now i have for charging my TF is by USB (connected to PC while turned off). It will charge this way but it takes about 3 hours to get 10% charge from this.
Anyone had this happen already before?
So you tried multiple Asus wall chargers? with no luck? A standard USB charger will not work as those have an output voltage of 5+ when the tf requires 12+.
Sounds like you have a bad charger, you can join the club of thousands... It is a very common issue and not always resolved by the freezer or fiddling trick. If you are able to trickle charge via a PC connection then your cable and tf should be good.
Sent from my SAMSUNG-SGH-I997 using XDA
Link for another discussion where I listed an alternate charger
http://forum.xda-developers.com/showthread.php?p=23917818
It really is heads and tails better than the Asus one
Sent from my SAMSUNG-SGH-I997 using XDA
theraffman said:
So you tried multiple Asus wall chargers? with no luck? A standard USB charger will not work as those have an output voltage of 5+ when the tf requires 12+.
Sounds like you have a bad charger, you can join the club of thousands... It is a very common issue and not always resolved by the freezer or fiddling trick. If you are able to trickle charge via a PC connection then your cable and tf should be good.
Sent from my SAMSUNG-SGH-I997 using XDA
Click to expand...
Click to collapse
No, I tried with a different wall charger (from Motorola). I don't think it's the wall charger though, but to make sure I wil connect it to a phone and check if it's working.
It just feels like the cable and wall charger is working as it should (tablet powers up or screen turns on when I plug it in), but the tablet refuses to charge.
Could it be the pins?
Sent from my GT-I9100 using xda premium
And the motorola USB charger puts out at least 12 volts and not just 5. Is it the wall charger for the zoom? I was UN aware that the zoom used a USB type charger (similar to the tf).
Once again, you can't use just any USB wall charger for the tf... 99% of chargers put out the standard 5 volts which is enough to trickle charge a tf and to slightly charge it in done cases when powered down. I am only adamant about this this because I have sewn this post a hundred times, and 99 of those times it was the charger... Many people don't realize the tf USB charger is very coherent then what most folks are accustom to, even though it looks and acts similar to others.
The only way to confirm is to find someone who has a tf and borrow their charger, our go to radio shack and buy the charger I listed... Which you should do any ways because it's is way way better, my charging cord over all length is 10ft. Beats the hell out of the 2 or 3 you normally would have.
Sent from my SAMSUNG-SGH-I997 using XDA
theraffman said:
And the motorola USB charger puts out at least 12 volts and not just 5. Is it the wall charger for the zoom? I was UN aware that the zoom used a USB type charger (similar to the tf).
Once again, you can't use just any USB wall charger for the tf... 99% of chargers put out the standard 5 volts which is enough to trickle charge a tf and to slightly charge it in done cases when powered down. I am only adamant about this this because I have sewn this post a hundred times, and 99 of those times it was the charger... Many people don't realize the tf USB charger is very coherent then what most folks are accustom to, even though it looks and acts similar to others.
The only way to confirm is to find someone who has a tf and borrow their charger, our go to radio shack and buy the charger I listed... Which you should do any ways because it's is way way better, my charging cord over all length is 10ft. Beats the hell out of the 2 or 3 you normally would have.
Sent from my SAMSUNG-SGH-I997 using XDA
Click to expand...
Click to collapse
Thanks for your replies.
You're right, the Motorola wall charger is only 5v output. It was the one I got with the Milestone. I do start to believe it might be the wall charger after all now.
Unfortunately I don't know anyone else with a TF (anyone reading this lives in Ghent, Belgium with aTF?). Radio Shack isn't an option either since I live in Belgium, but I'll try to find overhere or online.
Anyway, appreciate your help. Might try the freezer thing again in the meantime... you never know.
When you connect your TF to a pc on a usb 3.0 port, should you be able to see the TF charging? Or no way to get more the 5v from this too?
Sent from my Transformer TF101 using xda premium
do u know anyone with an ipad? sure the wall chargers are 15w out and should do the trick.
Alta1r said:
When you connect your TF to a pc on a usb 3.0 port, should you be able to see the TF charging? Or no way to get more the 5v from this too?
Click to expand...
Click to collapse
USB is 5V. No exceptions.
What you can do is build your own PC charger, like the one in my sig.
scottyf79 said:
do u know anyone with an ipad? sure the wall chargers are 15w out and should do the trick.
Click to expand...
Click to collapse
Cheers man, my colleague has an ipad. Will ask him to bring his wall charger.
Goatshocker said:
USB is 5V. No exceptions.
What you can do is build your own PC charger, like the one in my sig.
Click to expand...
Click to collapse
I might try that, but only if I have no other choice (i fear i'll blow up my TF while doing that).
usb chargers are 5v only and will charge but take all day. The TF charger uses the physical usb plug to do double duty. transfer data via usb and charge device using 15v when the charger block sees a gnd signal on pin 7. Charging is not usb. There are several after market chargers that have variable output voltages and an asst of connectors (usb being one) best one is dynex video charger. Also you should not attempt to flash a ROM with 10% charge as you could get stuck in the middle of a charge and have problems.
Well, it was the wall charger after all. Went out to buy a power adapter with 12v and 1000mA output and the tablet is charging again. Many thanks to all people that replied and tried to help me.
For your info: ipad or galaxy wall charger aren't working with our TF's, they both only have an out put of 5v.
Sent from my Transformer TF101 using xda premium
Alta1r said:
Well, it was the wall charger after all. Went out to buy a power adapter with 12v and 1000mA output and the tablet is charging again. Many thanks to all people that replied and tried to help me.
For your info: ipad or galaxy wall charger aren't working with our TF's, they both only have an out put of 5v.
Sent from my Transformer TF101 using xda premium
Click to expand...
Click to collapse
Never allow your charge level fall below 30% because it will cause your charger to overheat and eventually stop working.
I am not sure if anyone else is experiencing this but I am seeing that i'll charge my phone for somewhere between 5-8 hours using the original wall charger and cable but it will not fully charge. It gets to about 70-80%. Is this happening to anyone else?
Any other details? Rooted? ROM?
My phone fully charges from 10% to 100% in about 2 hours or less
Sent from my Nexus 4 using xda app-developers app
5-8 hours is definitely not normal. It fully charges from 0 to 100% in 3h 45min Max and even that is a little bit of a stretch. For me its more like 3hours.
Sent from my Mako Nexus quattro using Tapatalk 2!
Check your chaging status. If it says USB, thats your problem. Without further knowledge of your setup, I cannot advise you any further
Just happened to me, plugged into original charger before going to sleep, woke up and it shows only 80%. Plugged into Samsung charger, now up to 90% in 20 minutes.
fuego77 said:
Any other details? Rooted? ROM?
My phone fully charges from 10% to 100% in about 2 hours or less
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Stock everything. It's happened about 4 nights now.
I find that sometimes my stock charger detects as USB instead of AC. You can see if it is charging that way in the battery details in the settings. When it is stuck on USB it is way slower.
Sent from my Nexus 4 using xda app-developers app
Yeah and if you want it to charge a little bit more faster you turn off the device
Check about phone, make sure it says Charging (AC) and not Charging (USB). If it's USB then thats the reason why, use another charger.
My stock charger that came with N4 went to USB but then for some reason, after I replugged it, it went to AC and has been AC ever since.
zephiK said:
Check about phone, make sure it says Charging (AC) and not Charging (USB). If it's USB then thats the reason why, use another charger.
My stock charger that came with N4 went to USB but then for some reason, after I replugged it, it went to AC and has been AC ever since.
Click to expand...
Click to collapse
+1 and don't trust these USB adaptor that come with the phone now. Get a straight across wall charger.. I just received my LG wall charger and it's perfect! Doesn't switch to usb and all.. I suggect getting this.. http://pages.ebay.com/link/?nav=item.view&id=150959459340 beautiful charger! No USB ****!
Sent from my Nexus 4
Genestealer said:
Just happened to me, plugged into original charger before going to sleep, woke up and it shows only 80%. Plugged into Samsung charger, now up to 90% in 20 minutes.
Click to expand...
Click to collapse
Something happen to me
Sent from my Nexus 4 using Tapatalk 2
noodles2224 said:
+1 and don't trust these USB adaptor that come with the phone now. Get a straight across wall charger.. I just received my LG wall charger and it's perfect! Doesn't switch to usb and all.. I suggect getting this.. http://pages.ebay.com/link/?nav=item.view&id=150959459340 beautiful charger! No USB ****!
Sent from my Nexus 4
Click to expand...
Click to collapse
Trust me, this works perfect! None of that USB-AC jumping.. always order a straight AC Wall Charger. Dont trust the USB adaptor that comes with phones no a days. in 2 1/2 hour fully charged. thats a normal charge.
noodles2224 said:
Trust me, this works perfect! None of that USB-AC jumping.. always order a straight AC Wall Charger. Dont trust the USB adaptor that comes with phones no a days. in 2 1/2 hour fully charged. thats a normal charge.
Click to expand...
Click to collapse
Thank u I just bought one. +10 maybe this will solve my charging wake lock problem.
Using Tapatalk 2
Jefferyrbrown1983 said:
Thank u I just bought one. +10 maybe this will solve my charging wake lock problem.
Using Tapatalk 2
Click to expand...
Click to collapse
youre welcome. fast shipping too! it was supposedly be here monday, i got it today.. beautiful charge. AC all the way. Good use for the USB cord is ADB and updates
cant seem to spread the word enough because youre the only one that replied about it. couple threads that ive mentioned it but nope, they think its phone related problem or the cord.. cord, yes, because its a USB cord to an AC adaptor, duhhh!!! nothings perfect
I was having a problem where mine, with the charger that came with it would charge very slowly, once overnight only got to 80% in ~8 he's i watched it and sometimes would not even show charging on the lock screen. I switched to my HTC one s charger and it is charging with great speed. Issue with these chargers?
Sent from Nexus 4 - cm10 - faux kernel002 beta005
n82k said:
I was having a problem where mine, with the charger that came with it would charge very slowly, once overnight only got to 80% in ~8 he's i watched it and sometimes would not even show charging on the lock screen. I switched to my HTC one s charger and it is charging with great speed. Issue with these chargers?
Sent from Nexus 4 - cm10 - faux kernel002 beta005[/QU
did your HTC One S have an adaptor like the Nexus 4 or any other phone now a days... I think thats the probllem. having an adaptor from USB to AC PLUG messes with these phones. Like I said before, above post.. buy an LG AC Wall Charger.. works great.
Click to expand...
Click to collapse
noodles2224 said:
n82k said:
I was having a problem where mine, with the charger that came with it would charge very slowly, once overnight only got to 80% in ~8 he's i watched it and sometimes would not even show charging on the lock screen. I switched to my HTC one s charger and it is charging with great speed. Issue with these chargers?
Sent from Nexus 4 - cm10 - faux kernel002 beta005[/QU
did your HTC One S have an adaptor like the Nexus 4 or any other phone now a days... I think thats the probllem. having an adaptor from USB to AC PLUG messes with these phones. Like I said before, above post.. buy an LG AC Wall Charger.. works great.
Click to expand...
Click to collapse
Same thing.... AC -> USB adapter, http://www.youtube.com/watch?feature=player_detailpage&v=6wI_F-SRlio#t=182s
Click to expand...
Click to collapse
Just noticed this as well. Plugged my wife's one s charger and it returned to normal.
Genestealer said:
Just happened to me, plugged into original charger before going to sleep, woke up and it shows only 80%. Plugged into Samsung charger, now up to 90% in 20 minutes.
Click to expand...
Click to collapse
Sorry to jump on a thread and go completely off topic but love the screen name
Sent from my Nexus 4 using xda app-developers app
Wow, glad I found this thread. I was wondering what the cause of this was, as well. I've been using my GNex charger since it switched over.
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.
Click to expand...
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
Click to expand...
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
Click to expand...
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
Click to expand...
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?
Click to expand...
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:
Any one else have the problem when u plug in with the charger that lg provides you get a pop up that says slow charging check connection and use charger provided... I get that notification but if i use my nexus 6p type c charging block everything works fine..
Sent from my LG-H910 using XDA-Developers mobile app
Never mind i didn't have the usb side of the charger plugged in all the.. Carry on dont mind me blonde moment
Sent from my LG-H910 using XDA-Developers mobile app
djmdubb said:
Never mind i didn't have the usb side of the charger plugged in all the.. Carry on dont mind me blonde moment
Sent from my LG-H910 using XDA-Developers mobile app
Click to expand...
Click to collapse
LOL i was about to say. Go to Tmobile now and tell them so that they can give you a new one. Because despite i have 35 apps up and running, and i have done a lot today, my phone gets charged in about 1 hour and 15 minutes (pretty decent if you ask me)
May I ask what is the Voltage and Ampere rating for the stock charger?
bozq said:
may i ask what is the voltage and ampere rating for the stock charger?
Click to expand...
Click to collapse
9.0v = 1.8; & 5.0v = 1.8a
I had the same thing happen to me the first time I plugged it in...
That said, I found my quick charge 2.0 charger charges it faster than the charger in the box, so I am thinking of buying an official 3.0 quick charger.
That stock charger doesn't look like it's variable voltage that qc3 requires
joseguillen1994 said:
9.0v = 1.8; & 5.0v = 1.8a
Click to expand...
Click to collapse
Hmm. That doesn't look like an actual Quick Charge 3.0 charger.
Oh well, I am prepared. I have two QC3.0 Chargers at home ready for the V20. Heh heh
BozQ said:
Hmm. That doesn't look like an actual Quick Charge 3.0 charger.
Oh well, I am prepared. I have two QC3.0 Chargers at home ready for the V20. Heh heh
Click to expand...
Click to collapse
I know. Im using my own charger with 5v and 2 amps. And it charges very fast with it. With the other it does charges fast. But not as fast as this one
The supplied charger is like a QC1.0 version, it's not even a QC2.0, it doesn't have the 12V, this is the same with the V10 and the G5 which is supplied with the same charger.
kms108 said:
The supplied charger is like a QC1.0 version, it's not even a QC2.0, it doesn't have the 12V, this is the same with the V10 and the G5 which is supplied with the same charger.
Click to expand...
Click to collapse
I wonder if anyone tried charging their V20 with a variable voltage and Ampere QC3.0 charger. I'll definitely try that when I get mine next month.
BozQ said:
I wonder if anyone tried charging their V20 with a variable voltage and Ampere QC3.0 charger. I'll definitely try that when I get mine next month.
Click to expand...
Click to collapse
Charging with my 3rd party QC 2.0 Charger, it wasn't as fast as stock charger, but it was doable. I'll try my 3rd party QC 3 tomorrow and report back.
dbornack said:
Charging with my 3rd party QC 2.0 Charger, it wasn't as fast as stock charger, but it was doable. I'll try my 3rd party QC 3 tomorrow and report back.
Click to expand...
Click to collapse
All this is why I bought a spare battery and charging dock. 30 second charge time ftw
Dvanzutphenkann said:
All this is why I bought a spare battery and charging dock. 30 second charge time ftw
Click to expand...
Click to collapse
30... Seconds or minutes?
BozQ said:
30... Seconds or minutes?
Click to expand...
Click to collapse
Theoretically speaking I charge the other battery in the spare battery charging dock. So when I swap the dead battery out it only takes 30 seconds or so to have a full charge on my phone. No more tethering my phone to the wall.
BozQ said:
30... Seconds or minutes?
Click to expand...
Click to collapse
I think he meant 30 seconds as in the time it takes to change out the battery.
Slash8915 said:
I think he meant 30 seconds as in the time it takes to change out the battery.
Click to expand...
Click to collapse
You're a smarter man than i, I couldn't think of just writing that. Its too early for me, yeah that's what I'll chalk it up to daaaaah to early lol Thanks bro.
I have an Anker QC 3.0 charger and last night, it charged my V20 from 6% to 100% in about 1 hour.
Sent from my LG-H918 using Tapatalk
Measured at the wall, my OEM charger refused to charge over 2.7 WATTS - 2 point 7 - when the battery was at 15%... what the eff? Not that I care, because the charger is junk anyway, but sheesh! Makes no sense...
Also, the charge current drastically drops any time the screen is on from what I am seeing, as pictured below.
Also what makes no sense, and 2 reviewers on Amazon commented the same issue, Anker's PowerPort +1 Type C QC 3.0 charger doesn't work with this phone. I couldn't get it to go over 12 watts with the screen off even though I tried 4 different cables (Anker, i-Orange, i-Rainy, OEM Pixel XL cable). Interestingly, the Pixel XL OEM charger peaked at 19.2 watts! Really interesting actually... don't know how it's doing it, since it's USB PD, but it does have the proper voltages. It's charging the phone pretty damn quick. Even at 68%, it's pulling 14 watts right now as I type.