[Captain Code]

Originally Posted by Ferdinand

iPhones use li-ion batteries? Most phones don't though because my 9 year old Nokia still recharges and holds around a week (though just with GSM).

I don't know specifically about the iPhone because I can't buy one here but my cell phone uses li-ion and the computers usually use lithium polymer which has a life fairly similar to li-ion of 300-500 charge cycles depending on the manufacturer.

I would guess it's probably li-polymer.