[SanjayMehta]

My iPhones' batteries have all lasted a minimum of 5 years.

Having said that, my Nokia E71 and Communicator batteries are still usable after 20+ years.

[usr1106]

I was figthing a bit recently to make my 9210 Communicator charge again after well over 20 years in the drawer. But it eventually worked. The first phone with a color screen and a keyboard!