I was thinking of charging my iPhone thru USB@office. The only problem is that I don't have admin access&admin will never approve I tunes installation. I thought it'll be ok to just connect the USB cable & let iPhone charge even whethe driver is not installed.

But from posting in here it could cause trouble, anyone else can validate this!?

Can we charge iphone from the car audio USB port?

As long as the USB port is electrically charged and provides enough amperage to pass those charges to the iPhone, it should work. I've charged from the Airport Express USB port sometimes, when i forgotten to being the charger head.

You can charge your iPhone with any desktop/laptop or wall charger @ office/home.

For car charger, read this threads:

http://forum.lowyat.net/index.php?showtopi...&hl=car+charger

http://forum.lowyat.net/index.php?showtopi...post&p=16804687

when im charging my iphone with the 2 pin charger...my touchscreen feels very weird. the touchscreen seems to be inaccurate. for example if i touch the top but sometimes the bottom will be sensed instead.
ironically, when im charging with usb via computer or laptop, the touchscreen is perfect.

i would like to know whether this is a hardware related problem?

is it because of third party charger or the 2 pin plug?

anyone having this experience or anybody that knows please help...really annoying as i cant use it when im charging. =(
thank you for your time...and have a nice day.

Never had the problem like this. but for me, im not going to use any 3rd party charger or anything with my precious hardware.

hi thanks for the reply.
sigh...i thought using third party charger is fine...hope using third party stuff wouldn't cause any harm to my iPhone.

3rd party which are authorized by apple don't bring any problem. Such as brand like griffin ect.

I don't know which way of charging is better or does either of the way will bring harm to the phone....

But for me, do use both (PC USB and Adapter) when ever it is convi to me. Since Steve gave us 2 ways of charging, I think both will be fine and neither of it will harm the phone....

the output of the charger is supposed to be around 5V. mayb your third party charger is not supplying the correct voltage to the phone.

i thought apple already mention in their website can charge the phone in 2 ways ?

http://www.apple.com/iphone/specs.html



if want to consider harm, then too much of thinking already ...



This post has been edited by Ken: Nov 1 2009, 09:16 PM

Is a simple fact that AC plug might able to speed up charging.

USB from PC provides 5V and 500mA power vs AC Plug USB provides 5V and 1000mA. That doubles the power to charge the battery.

Hi, actually im charging with an ori adaptor, not third party sorry. I'm quite convinced its original...because it states "designed by apple in california. assembled in china. TM and 2006 Apple Computer Inc. All rights reserved". lol sorry i dont really know how to differentiate whether its ori or not.

but anyways, the power adaptor states:
input of 100-240v~, 50-60Hz, 0.15A Max.
output of 5V 1A
its a 2pin adaptor but it states "iPod" USB power adaptor.

could that be the reason for my touchscreen problem while charging? because charging via usb cable through computer doesn't give me any problems.

Need some advice whether to buy a new "iPhone" charger(ori or third party?). I dont even know whether theres a difference between iPod and iPhone adaptor.

thx for the feedback guys.

This post has been edited by anti-LAx2: Nov 2 2009, 01:32 AM

where did you obtain that original charger? is it came with the phone package or bought separately that the seller claim is original?

The only way to be ascertain of original charger, get it from Macstore or Machines shop.

Ipod and iPhone adaptor is the same because they use standard USB power plug to charge. USB only produce 5V in 500mA or 1000mA (AC plug)

iphone and ipod touch is li-ion battery , we always plug the USB cable it will auto charge when transfer a file or mp3 plug the cable it will auto charge also .

can i ask the battery will spoil ?

i heard from my friend said li-ion battery always charge won spoil
if li-polymer battery used half u charge will spoil

is it correct ?

use back charger dat is officially designed for iphone.. third party charger will damage yr iphone batt. (mayb not now but u'll realize in 1-2months more.. cz i try b4 last time on my iphone 3g.. =)
currently using 3gs no more 3rd party stuff for my precious baby cz losing an iphone its like losing something very important in yr life..

i had this kind of problem too.. but mine is worse.. both the ac n usb charging method got this kind of problem.. but its charging fine if i didnt use d phone.. its just when got a msg.. very hard to reply since i cant touch the correct word.. it goes crazy like wtf!!.. haha so i had to disconnect d phone then i reply lor.. wouldnt it hurt the battery if i dc n reconnect d cable back n forth since i sms 24/7.. even i sleep also sms.. kidding..

owh n i use 3rd party charger n usb cable.. would this be d problem.. my phone is 3gs 16gb maxis set still got warranty till november this year.. n yup.. jailbroken

hi all, jz wondering can i charge my iPhone whenever i want? i mean even it is more than 30% or so? or it is better for me to charge only when the battery is less than 20% or so?
another question, can i unplug my iPhone when it is not fully charge?

thx...

This post has been edited by derik87: Apr 6 2010, 10:35 PM

yes u can charge it when ever u want unplug it even its not fully charge...just use up to like <20% and charge it till its full and wait for another 20minutes or more for it to fully charge every month....your iphone battery should work like a charm in those coming years

It is alwats better to discharge your phone every month and charge it again, so that your battery works perfectly

Fully discharging lithium ion battery will actually harm it, not prolong it.


Charging procedure
If the voltage drops below 2.50 V per cell, the battery protection circuit may also render it unchargeable with regular charging equipment. Most battery protection circuits stop at 2.7–3.0 V per cell.[45]
http://en.wikipedia.org/wiki/Lithium-ion_battery

This post has been edited by ante5k: Apr 15 2010, 01:13 PM