AG3 - AG13 adapter

Very simple AG3(LR41) to AG13(LR44) battery adapter.

[AG13/LR44](https://upload.wikimedia.org/wikipedia/commons/thumb/5/53/LR44_Button_Cell_Battery_IEC_Standard_Version.jpg/240px-LR44_Button_Cell_Battery_IEC_Standard_Version.jpg) is used in digital calipers, thermometers.
Size specs: [List of battery sizes wiki](https://en.wikipedia.org/wiki/List_of_battery_sizes#Button_cells_-_coin,_watch)

The only reason having this printed is lots of AG3, but no AG13 batteries at home.