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From: "jbker@juno.com" <jbker@juno.com>
Date: Tue, 22 Feb 2005 18:09:14 GMT
To: flyrotary@lancaironline.net
Subject: Re: [FlyRotary] Battery load testing (was: Amps required to run engine
	 & amp-    hours available)
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Bill D. wrote:

 
        I have found that the cheapest way to load test (capacity test) a 
battery is with a home-made water-cooled dummy load, a voltmeter, a stop 
watch, and something to measure current.

______________________________________________

I think ( and I'm certainly not an EE, Tracy will attest to that) you might get a more representative number easier by useing 3 50 watt 12 volt halogen track lights and the same bulbs make cheap landing lights :>)
I had to wire them in parallel because they would only glow dim when in series and not pull much current. You can count on 4 amps per bulb until the voltage drops below 10 volts. Count the time till 10 volts and multiply hours by bulbs by 4 and you will have how many amps that batter is good for. 2 bulbs might be more representative of the rotary operating load, I measured 7.8 for mine.

Bernie, N19VX is now legal to fly, just have to get it ready to fly now.