Larry, Thanks for the reply, but the real question I'm asking is whether or not the non-rechargeable Lithium cells can take the charging voltage meant for the rechargeable NiCad battery? Yes, the Lithium cells are now working fine, and have for almost a week now, but will this last? Lewis Emerson >Larry Fisk <[log in to unmask]> writes: >Lewis; > yes you can use a battery that's slightly different voltage. >Rayovac makes a replacement battery #844a 4.5 volt >that will work in almost any system. I routinely use them. ___________________________________________________________________ Get the Internet just the way you want it. Free software, free e-mail, and free Internet access for a month! Try Juno Web: http://dl.www.juno.com/dynoget/tagj. Visit our website regularly for FAQs, articles, how-to's, tech tips and much more http://nospin.com - http://nospin.org