[?]Is it possible to disable USB charging like winMo

[ducnguyen36]

I just wonder is it possible to disable USb charging in Nexus One

 

[habibas]

until now i have fond nothing about this
i rely need this because i plug my phone for tethering at work
and the battery is 100% already there should be an option for this

 

[scote]

Not sure why you need this, when the phone is 100% it will stop charging and draw power from USB while plugged in, surely this is preferable to rapidly draining the battery while being tethered?

 

[habibas]

the problem that i am using the phone for 8H for tethering (all the work time)
and the device get toooo hot i want to stop the chargeing ntile the phone battery dry than i will charge it again

 

[Bitbrit]

the device get toooo hot i want to stop the chargeing ntile the phone battery dry than i will charge it again

From what I've seen from other threads on the subject of charging, doing what's practically a full drain and then charging again will not only create more heat but may also shorten the life of the Li-On battery.

 

[bmj1086]

From what I've seen from other threads on the subject of charging, doing what's practically a full drain and then charging again will not only create more heat but may also shorten the life of the Li-On battery.

It's not that making it 0% before charging it kills the battery life. The Lithium Ion battery's life cycle is poor and that's what it's infamous for. What makes it's life shorter is the amount of times you charge it. When you charge it all the time you're reducing the life of the battery greatly. This should help with that subject.

As far as disabling USB charging, I've never heard of it and I don't think it would be possible. If it is, that's great. My question is; why don't you use WIFI Tethering? You get the same results and you don't have to charge to use it.

 

[p7x]

If your phone gets hot while tethering, just use SetCPU to slow it down a bit... or maybe use a task killer to get rid of some of the background tasks. If your phone's already charged to 100% then it shouldn't get hot just from being plugged in.

 

[bmj1086]

If your phone gets hot while tethering, just use SetCPU to slow it down a bit... or maybe use a task killer to get rid of some of the background tasks. If your phone's already charged to 100% then it shouldn't get hot just from being plugged in.

SetCPU wont have any effect on this because the battery is what is getting hot from charging.

I still don't understand why people even use SetCPU anyways.

 

[Yatyas]

Couldn't you modify a USB cable and clip the power wires? I know it might be a hassle but it would be a sure fire way to keep it from charging and I believe the data connection would still work. That way you could have a true data only cable.

 

[bmj1086]

Couldn't you modify a USB cable and clip the power wires? I know it might be a hassle but it would be a sure fire way to keep it from charging and I believe the data connection would still work. That way you could have a true data only cable.

Sounds like a good idea. I might try that out.

 

[royn]

I still don't understand why people even use SetCPU anyways.

I've found that it almost doubles my battery lifetime by reducing the CPU speed when the phoneis on standby to almost minimum... Otherwise my phone doesnt last all day (from 8am to 1am)... It is actually one of the most useful apps on the nexus for me at the moment...

 

[b0unceee]

I still don't understand why people even use SetCPU anyways.

Why not? Throttling my max clock while in standby and setting a max clock on under 40% battery, has helped me increase my battery life about 2-4 hours every day...

 

[bmj1086]

Why not? Throttling my max clock while in standby and setting a max clock on under 40% battery, has helped me increase my battery life about 2-4 hours every day...

I've found that it almost doubles my battery lifetime by reducing the CPU speed when the phoneis on standby to almost minimum... Otherwise my phone doesnt last all day (from 8am to 1am)... It is actually one of the most useful apps on the nexus for me at the moment...

Most people misunderstand how a processor works. Your phone automatically idles at 386mhz. Setting a MAX does nothing but limit the availability. A 1ghz processor doesn't run at 1ghz consistently. A 1ghz processor just means that 1ghz is available. If your phone is sleeping then it's not using very much at all. The only reasonable change would be to change your MAX to something lower for Screen On or setting the MAX to like 100mhz for screen off. Other than that, you make no changes.

 

[mafiabs]

From what I've seen from other threads on the subject of charging, doing what's practically a full drain and then charging again will not only create more heat but may also shorten the life of the Li-On battery.

actually, that's a good thing to do. It's called battery calibration, and you should do it once monthly. Look at the links to get detailed info:
eastwoodzhao.com/maintaining-and-calibrating-a-laptop-battery-pack/
h20239.www2.hp.com/techcenter/battery/Battery_max.htm

 

[OzCDN]

actually, that's a good thing to do. It's called battery calibration, and you should do it once monthly. Look at the links to get detailed info:
eastwoodzhao.com/maintaining-and-calibrating-a-laptop-battery-pack/
h20239.www2.hp.com/techcenter/battery/Battery_max.htm

Yes, but not more often than that (I've heard numbers like every 50 cycles (~2 months)). Unlike other types of batteries, LiIon batteries do not like the full discharge / full recharge cycle.

 

[ryan22158]

Take the battery out. The phone will run off of USB power only. It works with my old G1. I haven't tried with my nexus though.

 

[pastech]

USB Connect without charging Galaxy S

I just tried 'snipping' the power wire (Red) on a USB cable, now nothing happens when connecting the cable, it's as if the devices (Samsung Galaxy S and Nokia E72) need the power line to connect for data transfer.

 

[badge2033]

actually, that's a good thing to do. It's called battery calibration, and you should do it once monthly. Look at the links to get detailed info:
eastwoodzhao.com/maintaining-and-calibrating-a-laptop-battery-pack/
h20239.www2.hp.com/techcenter/battery/Battery_max.htm

in fact that's not a good a thing to do, the worst ennemies for liion batteries are heat and voltage stress.
voltage stress results from either full charge or full discharge , the optimal charging pattern is 10% - 90% (but partial charges in between are of no harm at all)
by all means try to avoid full battery drain and/or keeping charger plugged after full charge.

following these guidelines you should more than double you battery life span