So I have my phone on a dock and connected to my PC via USB to keep it charged and I like to keep the screen on whilst doing this. Are there any downsides to this? Does it wear the battery down at all? (1) With the screen always on the battery doesn't really charge, just sits on the same % which I don't mind so much but want to make sure it's safe to leave it like that regularly.
When the screen is off how quickly should the phone charge via USB? (2) It still seems to be pretty slow, I understand it wouldn't be as quick as the power adapter of course. I have an ASUS motherboard and there is supposed to be a USB Charger Plus Driver from ASUS which I believe gives more power to a certain port you can use which should charge it quicker if supported, would that be safe for the battery? (3)
I've numbered each question (1-3) so should be easier to answer, thanks for any help!
Josh98 said:
So I have my phone on a dock and connected to my PC via USB to keep it charged and I like to keep the screen on whilst doing this. Are there any downsides to this? Does it wear the battery down at all? (1) With the screen always on the battery doesn't really charge, just sits on the same % which I don't mind so much but want to make sure it's safe to leave it like that regularly.
When the screen is off how quickly should the phone charge via USB? (2) It still seems to be pretty slow, I understand it wouldn't be as quick as the power adapter of course. I have an ASUS motherboard and there is supposed to be a USB Charger Plus Driver from ASUS which I believe gives more power to a certain port you can use which should charge it quicker if supported, would that be safe for the battery? (3)
I've numbered each question (1-3) so should be easier to answer, thanks for any help!
Click to expand...
Click to collapse
Yes, It will downgrade your battery.
Don't always leave your display on. Like we also needs a 6-7 hours sleep after long any hectic routine same is with phone.
Some manufacturer's have specially built an USB 3.0 port for the charging purpose, so you can use that.
:good:
D_RiDeRs said:
Yes, It will downgrade your battery.
Don't always leave your display on. Like we also needs a 6-7 hours sleep after long any hectic routine same is with phone.
Some manufacturer's have specially built an USB 3.0 port for the charging purpose, so you can use that.
:good:
Click to expand...
Click to collapse
Well the screen will be off all night and 30+% of the day, might that be ok?
Will leaving it plugged in with USB and screen off still degrade the battery still?
Sent from my Nexus 7 using Tapatalk HD
Josh98 said:
Well the screen will be off all night and 30+% of the day, might that be ok?
Will leaving it plugged in with USB and screen off still degrade the battery still?
Sent from my Nexus 7 using Tapatalk HD
Click to expand...
Click to collapse
Yup, if screen is off all the night, it will perfectly charge your phone.
No, leaving it plugged in doesn't degrade the battery.:good:
D_RiDeRs said:
Yup, if screen is off all the night, it will perfectly charge your phone.
No, leaving it plugged in doesn't degrade the battery.:good:
Click to expand...
Click to collapse
Cool thanks
Sent from my Nexus 7 using Tapatalk HD
Related
I have a couple of spare batteries and tried a hot swap of battery without powering down while connected to a charger, and it worked to my surprise.
handy for charging spare batteries, or popping on a fully charged one if you're on the way out somewhere or even keeping open apps in a running state.
I guess this may be common knowledge for some people, I never tried before with my N1 as I am sure I had tried it on other phones and they did not stay booted.
If it makes any difference I am running Cyanogen 6.0 rc3.
scote said:
I have a couple of spare batteries and tried a hot swap of battery without powering down while connected to a charger, and it worked to my surprise.
handy for charging spare batteries, or popping on a fully charged one if you're on the way out somewhere or even keeping open apps in a running state.
I guess this may be common knowledge for some people, I never tried before with my N1 as I am sure I had tried it on other phones and they did not stay booted.
If it makes any difference I am running Cyanogen 6.0 rc3.
Click to expand...
Click to collapse
Don't know if it's the same, but on the back of my laptop battery, it says being connected without a battery may cause damage to your system.
Not sure about that, but just sharing.
thatguyzx said:
Not sure about that, but just sharing.
Click to expand...
Click to collapse
Think batteries offer an extra degree of filtering.
I have tried this before, it did not work for me. Phone shut off as soon as I took the battery out. Was connected to USB at the time.
Tried it with a car charger and it turned off lucky!!!
Sent from my Nexus One using XDA App
Appears not to work for everyone - I was using an HTC mains charger, maybe it has something to do with the type of charger or what ROM/kernel you are using?
As far as laptops are concerned, i am sure I read somewhere that it is beneficial not to have the battery connected if you use them on mains most of the time due to the heat degrading Li-Ion batteries over time, but I can see the point about the battery filtering and providing protection against spikes and brown outs
xm0is3sx said:
Tried it with a car charger and it turned off lucky!!!
Sent from my Nexus One using XDA App
Click to expand...
Click to collapse
Your car charger probably only provides 450mAh then.
i wouldn't be surprised if it only worked with the htc charger plugged in. as long as the power is stable (aka won't dip in voltage when something high power like the vibrator turns on) then the phone will be fine. The phone knows if it's an htc charger, a computer usb power, or some 50c knock-off charger and it's understandable that it would protect itself by changing its behavior based on the power it can reliably draw.
macbooks, for example, will downclock their cpu when the battery is removed to make sure the silly little apple transformer can keep the voltage up.
Batteries provide voltage stabilization from wall power, so it's definitely safer to leave them in...but a few moments of wall-only power won't hurt. If you're really worried about it, hook up your charger to a power conditioner.
Works for me via USB but only when ADB is running... if I kill the ADB server the phone shuts down...
I have My Tab plugged in to my PC all day while debugging on it as I develop, unfortunately the fact that the tab somehow and for some reason disables charging while debugging is causing a huge problem for my workflow.
Can anybody suggest a possible solution that will allow me to charge and debug at the same time. My boss may consider allowing me to root the device (I know it's easy, I could do it right now, but it's political) if I know it's the only option.
The power outlet of the USB port isn't enough to charge it, which is driving me nuts too.
If you root it you can use ADB wireless (free app on market) to use adb over the wifi, and have the tab plugged into the wall. Otherwise I don't know. Maybe a hub with it's own power supply **might** do it, but I'm not sure.
TheGrammarFreak said:
The power outlet of the USB port isn't enough to charge it, which is driving me nuts too.
If you root it you can use ADB wireless (free app on market) to use adb over the wifi, and have the tab plugged into the wall. Otherwise I don't know. Maybe a hub with it's own power supply **might** do it, but I'm not sure.
Click to expand...
Click to collapse
Thanks, I assumed it was a software check that it's connected in debug and simply disabled.
My boss has agreed to allow me to root it on the basis that I can restore it to factory if required.
Cool beans. Glad I could be of assistance.
TheGrammarFreak said:
Cool beans. Glad I could be of assistance.
Click to expand...
Click to collapse
I'm still surprised it's that much of a beast that it needs more power than the USB port can supply, I mean, is it all because of the screen?
The wall charger does 2A
But the specs aren't any higher than my HTC Desire except for the screen and that only needs 1A from the charger and can charge by USB too.
I genuinely have no idea. I'm given to understand that the Tab does charge from USB, albeit slowly. As for why it needs 2A, who knows. Maybe Samsung don't like us using other chargers.
TheGrammarFreak said:
I genuinely have no idea. I'm given to understand that the Tab does charge from USB, albeit slowly. As for why it needs 2A, who knows. Maybe Samsung don't like us using other chargers.
Click to expand...
Click to collapse
Well my Tab doesn't charge from USB unless it's switched off. If it's on, the Battery symbol has a line throgh it, as in "charging disabled".
Yeah, mine does that too. I just use wireless ADB now, so much easier
alias_neo said:
Well my Tab doesn't charge from USB unless it's switched off. If it's on, the Battery symbol has a line throgh it, as in "charging disabled".
Click to expand...
Click to collapse
I think you will find that even in those circumstances it is still actually charging, albeit very slowly.
I had my Tab hooked up to my PC last week and when I connected it up it was showing that it wasn't fully charged, and didn't appear to be charging. However, when I disconnected it some time later it appeared to be fully charged.
Perhaps it would be worthwhile downloading JuicePlotter to see what affect, it any, connecting the Tab to your USB port has.
Regards,
Dave
It's not the specs of the device, it's the size and resistance of the battery. It charges slowly over USB, and it charges a much smaller percentage of the battery's capacity than it would with a smartphone.
Easy math, it's over 3x the capacity of your Desire battery, and as you well know, even your Desire battery charges slowly over USB compared to mains.
The larger backlight should consume about twice the voltage of a 3.7" display (rough estimate), so you're barely pushing any charge at all via USB when the display is on, a trickle of a trickle.
Croak said:
It's not the specs of the device, it's the size and resistance of the battery. It charges slowly over USB, and it charges a much smaller percentage of the battery's capacity than it would with a smartphone.
Easy math, it's over 3x the capacity of your Desire battery, and as you well know, even your Desire battery charges slowly over USB compared to mains.
The larger backlight should consume about twice the voltage of a 3.7" display (rough estimate), so you're barely pushing any charge at all via USB when the display is on, a trickle of a trickle.
Click to expand...
Click to collapse
You're right, I probably should have looked into the rating of the Battery in this thing. As an Engineer, the math is trivial.
Still, It appears to me that it's not charging at all, not even trickle, from full charge when I left for work this morning to empty before the end of an 8 hour working day with it plugged in to usb the entire time, slightly disappointing result.
Just as a matter of interest, I installed JuicePlotter and attached my Tab to my laptop and adb'd into the Tab and left it for a while. JuicePlotter definitely shows the battery charge rising, but probably only in the region of 5-10% per hour.
Regards,
Dave
foxmeister said:
Just as a matter of interest, I installed JuicePlotter and attached my Tab to my laptop and adb'd into the Tab and left it for a while. JuicePlotter definitely shows the battery charge rising, but probably only in the region of 5-10% per hour.
Regards,
Dave
Click to expand...
Click to collapse
I'll give it a try, where do I find this juice plotter? Market app?
alias_neo said:
I'll give it a try, where do I find this juice plotter? Market app?
Click to expand...
Click to collapse
Yes, it's on the Market.
Regards,
Dave
foxmeister said:
Yes, it's on the Market.
Regards,
Dave
Click to expand...
Click to collapse
As a pure matter of interest, and feel free to ignore me; why do you sign all your posts with "regards, Dave"?
TheGrammarFreak said:
As a pure matter of interest, and feel free to ignore me; why do you sign all your posts with "regards, Dave"?
Click to expand...
Click to collapse
Cause its the gentalmanly thing to do? lol. Maybe its a sort of signature.
TheGrammarFreak said:
As a pure matter of interest, and feel free to ignore me; why do you sign all your posts with "regards, Dave"?
Click to expand...
Click to collapse
? Same reason you sign all of yours like so?
HTC Legend, CyanogenMOD 6.1 nightly build 44 with 787MHz OC and /system overlay
Gapps for nightlies: (not that you should ever need them)
gapps-mdpi-20101020-signed
gapps-mdpi-tiny-20101020-signed
Please search, and engage brain! Click me!
---------------------
Device 2: Samsung Galaxy Tab, rooted
Click to expand...
Click to collapse
TheGrammarFreak said:
As a pure matter of interest, and feel free to ignore me; why do you sign all your posts with "regards, Dave"?
Click to expand...
Click to collapse
What Deafjam said!
Regards,
Dave
This power thing is annoying. I bought a 1 amp car charger USB adapter when I got my HTC Desire as running my satnav software on it otherwise depleted the battery quickly. The 1 amp charger was enough to charge the phone while running the software.
However, if I use it with my Tab, rhe battery is still running down while using the satnav software, although slowly.
If I got a 2 amp car charger adapter, would that solve the problem? Can one buy 2 amp adapters for the car? I don't reallly want to buy the way overpriced Samsung car charger, which isn't even available yet.
EDIT: OK I've found 2 amp USB car chargers are available. Will 2 amp be enough to charge the Tab while running the satnav software?
norm2002 said:
This power thing is annoying. I bought a 1 amp car charger USB adapter when I got my HTC Desire as running my satnav software on it otherwise depleted the battery quickly. The 1 amp charger was enough to charge the phone while running the software.
However, if I use it with my Tab, rhe battery is still running down while using the satnav software, although slowly.
If I got a 2 amp car charger adapter, would that solve the problem? Can one buy 2 amp adapters for the car? I don't reallly want to buy the way overpriced Samsung car charger, which isn't even available yet.
Click to expand...
Click to collapse
I have never seen a 2A car charger but yes, that would do the trick if you found one. I assume Samsung's will be 2A, how much is it to be "overpriced"? A 2A Samsung official car charger is probably worth about £25 I'd say.
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:
just wondering how's everyone fast charge is, back when i had my note 7 it usually only takes an hr and 15mins for the phone to get fully charge, even in use. I'm currently using the stock charger and I'm not happy for it
borismanalo said:
just wondering how's everyone fast charge is, back when i had my note 7 it usually only takes an hr and 15mins for the phone to get fully charge, even in use. I'm currently using the stock charger and I'm not happy for it
Click to expand...
Click to collapse
Yeah....., did you plug it in and immediately take that screen shot? Are you using the stock cable with it? And lastly does it say fast charging in the notification bar?
Mine takes roughly an hour and a half to go from 20ish% to 100%
DarkestSpawn said:
Yeah....., did you plug it in and immediately take that screen shot? Are you using the stock cable with it? And lastly does it say fast charging in the notification bar?
Mine takes roughly an hour and a half to go from 20ish% to 100%
Click to expand...
Click to collapse
no, i have it plugged in for a while... but i use it while its charging.
and yes stock cables and plug, and yes it does says fast charge... i guess im just used to samsung fast charge. that even in use it still charge the phone pretty quick
Your using the phone so the charge time hasn't adjusted. My Note 7 didn't charge in 1hr 15 min while I was using it.
Sent from my VS995 using Tapatalk
borismanalo said:
no, i have it plugged in for a while... but i use it while its charging.
and yes stock cables and plug, and yes it does says fast charge... i guess im just used to samsung fast charge. that even in use it still charge the phone pretty quick
Click to expand...
Click to collapse
My V20 charges crazy fast. There has been 2 times where It seemed to charge very slowly but I chalked it up to a likely bug or something. Other than those 2 times the device charges as it should, even when I'm using it providing the screen brightness isn't all the way up.
Sent from my Nexus 7 using Tapatalk
I will say if its charging slow make sure the usb end is plugged all the way in to the plug that goes in to the wall. I noticed this morning I was getting a slow charge and when looked at the connection it was not in all the way. Once I pushed it all the way in it started charging fast
Sent from my LG-H910 using Tapatalk
As a v10 user I can tell you that sometimes (even using factory charger and cable) it doesn't go into fast charge.
Unplug it and plug it back in the lock screen should state "fast charging.." not just "charging.."
Sent from my LG-H901 using XDA-Developers mobile app
V20 doesn't charge as fast when using while charging. I am guessing that is a firmware thing or intentional to protect from heat, which I rarely notice.
@rbiter said:
V20 doesn't charge as fast when using while charging. I am guessing that is a firmware thing or intentional to protect from heat, which I rarely notice.
Click to expand...
Click to collapse
that's understandable... back in note 7 it gets pretty hot but never exploded or smoked... but note 7 in use while playing a game will still charge the phone in 2hrs...
for me its a really big difference coming from note 7
thanks for everyone's input
using note 7 charger is actually a lil faster than the stock.... as far for my experience
I know that using a laptop to charge your phone is not the most ideal method, but right now it is my only option till I buy another USB adapter, however I am posting about this because it's taking forever to charge the phone. I could be wrong, but I've done it before and I don't think it actually took that long! I haven't calculated exactly how long it has been but I am pretty sure it's been long and it's still at 35% from like 30% when I first plugged it in.
Any ideas why that could be happening? Is that actually normal? I am charging it using the original Samsung USB cable and a MacBook Pro.
Thanks!
TarekElsakka said:
I know that using a laptop to charge your phone is not the most ideal method, but right now it is my only option till I buy another USB adapter, however I am posting about this because it's taking forever to charge the phone. I could be wrong, but I've done it before and I don't think it actually took that l ong! I haven't calculated exactly how long it has been but I am pretty sure it's been long and it's still at 35% from like 30% when I first plugged it in.
Any ideas why that could be happening? Is that actually normal? I am charging it using the original Samsung USB cable and a MacBook Pro.
Thanks!
Click to expand...
Click to collapse
The output of a MacBook usb port is about 2.5 watts, compared to the 10-15 watts of the stock s8 charger then yes, it's going to be extremely slow.
To add to above, also if your other usb ports are being used and drawing power this can reduce the amount of charge