Sharp Advanced D.A.L. EL-531X Scientific Advanced Calculator Tested Battery Case

Sharp Advanced D.A.L. EL-531X Scientific Advanced Calculator Tested-With Battery. Calculator works and is pre owned and I do not know how old battery is. If you have any questions, please do not hesitate to contact me prior to buying. Thank you for looking and have a great day!  Please view my other listings, I have lots of great items! Always carefully packed from a non-smoking household.