I know charger has tickle-charge to fully charge it. Will charging using PC USB port shorten the lifespan of the battery? I am charging my fone daily as I am at work thru my notebook, worry this will have impact to the lifespan of the bettery.

Apple webpage says the internal battery can still retain 80% efficiency after 1000 cycle of charges.

This post has been edited by stutzedward: May 7 2009, 09:41 PM

Tnx a lot for d feedbck. I asked this cos I had experience with laptop/PC charging do not last as long as charger charging on my old Motorola SLVR.

I'll continue to use PC USB charge then, tnx.

Talking about USB from PC frying stuffs, it's true. I've encountered before. There was once my colleague put his thumb drive into my PC in the office and out of the sudden, smoke came out, It melted the PCB board in the thumb drive (it's transparent).

So let's imagine, if the USB connection is to the iPhone, the fone is gone for good. It's real and it happens.

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Added on April 28, 2009, 9:27 amThanks for the feedback bro but you've misunderstood. I am NOT comparing the battery life of iPhone vs. SLVR. What I meant was, if I charge my SLVR using PC USB, it do not last as long as if I charge using the charger. Eg.

Charge thru PC USB on SLVR = 3.5 days of standby

vs.

Charge thru original charger on SLVR = 4 days of standby

So tht is why I guess PC USB charge do not have 'tickle charge' to really fully charge the battery.

This post has been edited by stutzedward: Apr 28 2009, 09:29 AM

bro buzza, I will try tht comparison on my iPhone. Yeah, I do agree different fone has different type of batt.

sure, pls go ahead.

I am asking for my friend. Her iPhone heats up when it's charging, is this normal? Another problem, during charging, our battery indicator usually shows a 'thunder' logo on the top right battery indicator but even NOT FULL YET (the battery indicator), the 'thunder' logo changed to an 'adapter' logo, which means it's fully charged. I compared hers against my iPhone, no heating at all, is this normal?

This only happens the past few days for her. We both use Maxis set, mine is 1 mth old and hers is only 2.5 weeks plus. Pls help, thanks!

She uses charger to charge as she worries USB will spoil her battery. I am asking her to try using USB and see if this still occurs. What about battery heating, mine doesn't heat up but hers does she said. It's warm, even the front screen.


This post has been edited by stutzedward: May 7 2009, 09:01 PM

Update:

For the past few days, my friend said the fone has been behaving FINE. Only slight warmish when charging using charger but it's cool when using USB.

I personally guess USB charging will be better then....

Bro, it's normal based on yr usage. As for not using it overnite and consuming 20%, did u turn off yr 3G and WiFi?