Since it wasn't used very often, I think it's in relatively good condition. Please understand that it's been stored. The internal battery was so depleted that the display disappeared when the solar panel was covered, so I replaced it with a new one. Replacement date: September 2, 2025 Replacement battery: CR2025 All buttons respond normally, and there are no display defects. You can use it as is. #Casio #CASIO #JS-20LA #Calculator #Professional Business Calculator