Cell phone memory

[jonny b]

How does a cell phone keep it's addresses and settings intact when you remove and replace the battery?

[Midknyte]

cellphones have a sim card and/or onboard memory.

[jonny b]

But when U remove the battery why does the memory keep the info? How long can this memory keep the info without the battery? There must be a mini battery in there hidden as well.

[Steve R Jones]

When in doubt - get a new battery.

[krupted]

its called non volitle memory. it doesnt loose information once powered down. theres a few different kinds of memory, and not all of them need power to retain data

[Midknyte]

it's the same type of memory used in usb flash drives. it can retain data without power.