Bryan;
You've brought up a very good example. Our Corporal missile internal
batteries were made up of 4 amp-hr sintered-plate Ni-Cd cells. They were
capable of supplying at least 18 amps for 6 minutes, if I remember
correctly.
I still have a portable spotlight that I made years ago in my cave-exploring
days in WV. It uses a small #4509 aircraft landing light that is powered by
10 of those cells in series mounted in styrofoam in a surplus .30 cal ammo
can. It worked great.
Surplus sintered-plate Ni-Cd cells or batteries can sometimes be found on
eBay for fairly reasonable prices.
Regards, Neil Tucson, AZ
-----Original Message-----
From: Bryan Savage [mailto:basavage@earthlink.net]
Sent: Sunday, January 05, 2003 12:15 PM
To: Glenn Ridlen
Cc: Russel Mack; ardunbill@webtv.net; land-speed@autox.team.net
Subject: Re: Battery Voltage
I just remembered one more possibility.
Sintered plate aircraft batteries. Sintered plates have enormous surface
area
and that's what determines the max current. A small 12V sintered plate
NICAD aircraft battery will spin the hell out of a 400 inch Continental
because
at about 400 amps the voltage only drops to about 10 volts. The sintered
plates have very low resistance because of the huge surface area.
Cost --- I have no idea but they wouldn't be cheap ($$$).
Bryan (They were developed for missiles in the '50's)
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