If this battery pack ever fails to hold a charge, we will rebuild it at no charge. Red Light Emitting Diode display is "Crisp and Bright" with all segments illumined.
Manual is excellent without extraneous writing. On/off switch clicks into position with authority. Battery compartment is pristine and conductive. All four original feet are present and intact. All items from Vintage Calculators Inc come from a smoke free environment.Check our feedback comments from our Domestic and International clients. The item "HP-21 RARE WOODSTOCK VINTAGE CALCULATOR MIB WORKS PERFECTLY" is in sale since Thursday, March 4, 2021. This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Calculators". The seller is "vintagecalculatorsinc" and is located in Hemet, California. This item can be shipped worldwide.