On Sun, 21 Dec 2008 15:28:09 -0000, Spehro Pefhany wrote:

On Sun, 21 Dec 2008 11:19:14 +0000, the renowned "Ron(UK)"
wrote:

Peter Hucker wrote:


Designing anything for alkalines only in ths day and age is absurd.

In your opinion maybe. Professionals in the sound industry use quality
replaceable batteries, they are reliable - reliability means
_everything_ when a show (or your job) is at stake.


P.S. rechargeables have LESS internal resistance. Try shorting a rechargeable and see how hot it gets.

Try shorting a 9 volt Procell! stand well back tho...

Ron

John W. measured something like 90A from a shorted rechargeable (NiCd,
IIRC) 9V battery. Enough to cause a real explosion.

Duracell quote PP3 9v internal resistance as 1.7ohm, which makes the Short circuit current 5.29 Amps - not nearly as much as a NiCd!
http://www.duracell.com/oem/Pdf/new/MN1604_US_CT.pdf

--
http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com

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