![Casio FX115ESPLUS Scientific Calculator - Hard Case, Auto Power Off, Dual Power, Textbook Display - 4 Line(s) - 16 Digits - Battery/Solar Powered - 1 - 1" x 3.3" x 6.5" - White - 1 Each - Walmart.com Casio FX115ESPLUS Scientific Calculator - Hard Case, Auto Power Off, Dual Power, Textbook Display - 4 Line(s) - 16 Digits - Battery/Solar Powered - 1 - 1" x 3.3" x 6.5" - White - 1 Each - Walmart.com](https://i5.walmartimages.com/asr/a84ca0bd-89ce-45ff-af7c-e1a58e0b873a.44d33f83267a36516aabc3244bbc34ff.jpeg?odnHeight=612&odnWidth=612&odnBg=FFFFFF)
Casio FX115ESPLUS Scientific Calculator - Hard Case, Auto Power Off, Dual Power, Textbook Display - 4 Line(s) - 16 Digits - Battery/Solar Powered - 1 - 1" x 3.3" x 6.5" - White - 1 Each - Walmart.com
How long to Casio calculator batteries live for? I swear I haven't changed the batteries and I've had it for three years - Quora
![File:Vintage Casio Model AS-80 Electronic Desktop Calculator, Battery or AC Operation, Made In Japan, Circa 1971 (14551050788).jpg - Wikimedia Commons File:Vintage Casio Model AS-80 Electronic Desktop Calculator, Battery or AC Operation, Made In Japan, Circa 1971 (14551050788).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/f/ff/Vintage_Casio_Model_AS-80_Electronic_Desktop_Calculator%2C_Battery_or_AC_Operation%2C_Made_In_Japan%2C_Circa_1971_%2814551050788%29.jpg)
File:Vintage Casio Model AS-80 Electronic Desktop Calculator, Battery or AC Operation, Made In Japan, Circa 1971 (14551050788).jpg - Wikimedia Commons
![Amazon.com : Casio FX-991ES Plus Scientific Calculator Fx 991 Es - New & Sealed ship to world wide : Office Products Amazon.com : Casio FX-991ES Plus Scientific Calculator Fx 991 Es - New & Sealed ship to world wide : Office Products](https://m.media-amazon.com/images/I/61v44oHp1cL.jpg)
Amazon.com : Casio FX-991ES Plus Scientific Calculator Fx 991 Es - New & Sealed ship to world wide : Office Products
![Casio SL300 8-Digit Handheld Calculator - 8 Digits - Battery/Solar Powered - 0.3" x 2.8" x 4.6" - Silver - 1 Each - Office Supply Hut Casio SL300 8-Digit Handheld Calculator - 8 Digits - Battery/Solar Powered - 0.3" x 2.8" x 4.6" - Silver - 1 Each - Office Supply Hut](https://content.etilize.com/Maximum/1010046027.jpg)