CASIO fx-3800p scientific calculator working from 1987 with the original Panasonic battery !!!!!!

[@jordiescartin2572]

The same with mine! Running with original battery!

[@lauzasdogpower234]

what is the battery CR2032 or CR2016

[@danitzageorginaramoschoque9297]

Es excelente, mine have a error, IIIV

[@juliandimov9349]

Same, don't you know, how to fix it?

[@ismailasm134]

guys did u solve it? I have the same error and dont know how to fix it.