Mark, I am no battery expert, but I believe that in an article that I read some time ago, Ni-Cads have a lower internal resistance than alkaline or zinc chloride cells. If this is true, then loads incorporating motors could possibly take excessive currents at start-up.
Regards, Geoff Lister Senior Engineer Motion Media Technology Ltd., Bristol, UK. http://www.motion-media.com > -----Original Message----- > From: [email protected] > Sent: 22 November 2000 17:28 > To: [email protected] > Subject: Rechargeable Batteries > > > I hope you'll all be patient with what might be a question with an > obvious answer: why do so many battery operated equipments > state that they must not be operated using rechargeable batteries? > > I appreciate that NiCads have a nominal voltage of 1.2V compared > to Alkaline and Zinc Chloride's 1.5V, but is there something else of > which I'm not aware? Higher output impedance as they grow old? > Greater chemical toxicity? More likely to leak corrosive material? > More likely to explode?! > > Is it functionality, safety or EMC that worries the instruction book > writers? > > Regards, Mark > -- > Mark Hone > > Wellman CJB Limited Email: [email protected] > Airport Service Road Tel: +44 (0)2392 629239 (Direct) > Portsmouth, Hampshire Tel: +44 (0)2392 664911 > PO3 5PG, ENGLAND Fax: +44 (0)2392 697864 > > ------------------------------------------- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > To cancel your subscription, send mail to: > [email protected] > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Jim Bacher: [email protected] > Michael Garretson: [email protected] > > For policy questions, send mail to: > Richard Nute: [email protected] > ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: [email protected] Michael Garretson: [email protected] For policy questions, send mail to: Richard Nute: [email protected]
