* '''1 battery per use''' when used as a '''hacking tool'''.
* '''2 battery''' to identify the contents of a '''floppy disk'''
* '''3 battery''' to identify the contents of a '''zip disk''' or a '''camera memory card'''
* '''4 battery''' to identify the contents of a '''compact disc (CD)'''
* '''5 battery''' to identify the contents of a '''hard drive disk (HDD)'''