IPhone not user-replaceable. The iPhone can be charged when connected to a computer for syncing across the included USB to dock connector cable, similar to charging an iPod. Alternatively, a USB to AC adapter (or "wall charger", also included) can be connected to the cable to charge directly from an AC outlet. Some models of the iPhone support wireless charging. Apple runs tests on preproduction units to determine battery life. Apple's website says that the battery life "is designed to retain up to 80% of its original capacity after 400 full charge and discharge cycles", which is comparable to iPod batteries.
JUNQ and IPOD the late onset of neurodegenerative diseases. In such diseases (e.g. Huntington's disease), a mutated protein misfolds and becomes toxic to the cellular environment by various ways such as denaturating cytosolic proteins. Incompetent of degrading those toxic species, the cell must isolate them to avoid their hazardous interaction with the cellular proteome. The IPOD was shown to be the sub-cellular site to which toxic amyloidogenic proteins are sequestered to, hereby serving as a protective quality control compartment. In addition, it was suggested by the Lindquist group, that the IPOD is the site where yeast prions undergo a maturation process. Thus, the