Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!olivea!uunet!wuarchive!sdd.hp.com!hp-pcd!hp-vcd!johne From: johne@hp-vcd.HP.COM (John Eaton) Newsgroups: sci.electronics Subject: Re: Why Are 9v Rechargables Not 9v?????? Message-ID: <2470013@hp-vcd.HP.COM> Date: 12 Feb 91 15:43:34 GMT References: <1991Feb11.005844.1630@julius.cs.uiuc.edu> Organization: Hewlett Packard, Vancouver, WA Lines: 15 <<< < < rechargeables also seem to be 7.2v. This seems to be a pretty serious < degradation from 9v, and I am surprised that these batteries would < even work in some applications. ---------- The standard 9 V battery starts out with a cell voltage of 1.5 but will drop slowly to 1.0 as it discharges. After that point it falls off very rapidly. Any 9 volt device must be able to operate from 9v down to 6 or else you will be tossing batteries with a lot of good amp/minutes left in them. John Eaton !hp-vcd!johne