apple i phone memory and battery jacket/case
key is the 5 external memory slots is a part and the external battery is a seperate part but external memory slots and external battery can join together and jacket on the phone
because battery always need changing, we have 2 or 3 backup battery from home to office but the memory slots and memory cards x5 hardly needs changing
so everytime we change the jacket, we can unplug the external memory slots from the external battery and slot in another already charged external battery to the external memory slots and wear the jacket on the i phone so the phone can have always fresh external battery and keep the same external five in one memory slots.