Ok, I’d hate to blog any bad news about the iPhone, especially just after having written a post celebrating the iPhone’s unlock. But this is actually quite serious, as you may already know, the iPhone is not like any other cell phone / mobile phone… the batteries do not pop out when it falls on the floor, the casing does not fall apart everywhere like you would expect with a normal cell phone (like the picture to the left), at least not usually.
This is what makes it so unique, however, in return there is a price to pay. Because the iPhone’s battery cannot be taken out and replaced by a new one, its quite obvious that your iPhone’s unique power source will die someday and along with it goes your iPhone…
To ‘help’ you prepare for this holy day, PCMAG has created an iPhone Death Watch. Given that your iPhone’s every functionality depends heavily on its battery, it was actually quite simple to setup a formula to calculate when exactly in terms of ‘after how many charges’ your iPhone will hit the bin.
Read on after the jump…
Combined with functions like phone calls, music play, google map, emailing, WiFi and EDGE… your iPhone would probably need a charge every 1.5 days. Whilst, according to Apple, your iPhone’s battery will have left only 80% of its efficiency after 400 battery charges. So based on this fact, PCMAG predicts that by 450 charges, you’ll probably be quite pissed off at your battery and will want to send it back to Apple for a replacement.
Therefore, the approximate number of days works out to be: 450 x 1.5 = 675 days!
If you want to check out how long your precious iPhone have got left, check out the iPhone Death Watch!
However, if you believe that you will still have the will to tolerate your iPhone’s half dead battery ability after 450 charges, this death watch is invalid for your use 
As for now, beware, the time is ticking!
Yeah people keep bitching about the fact that one can’t remove the battery to an iphone but honestly if it really last over 2 years before the charges start to crap out it’s not the end of the world most people change cellphone more frequently than that. After working in telecommunication customer service for several years, I’ve come to realize that most people buy a new cellphone rather than buy a new battery. Beside in 2 years apple will probably have come out with the iphone advance or something … people will want the new model… they always do… it’s marketing.
I’m replying to this simply because you’re the only person to have written something and it was ages ago!?
However – I do also agree with you.
The math in here is terrible, if the iPhone battery is on 80% of it’s life expectancy after 400 cycles, how does that mean it will die after 450 cycles?
It’s basically saying 20 cycles = 1% life expectancy, of course this isn’t exact but you’re looking at more like ~2000 full cycles before it’s dead and ~1000 full cycles before it’s at 50%.