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Handy Battery Cpacity Calculator (was: Odyssey % of charge)

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william.p.dube(at)noaa.go
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Posted: Thu Feb 23, 2006 11:00 am Post subject: Handy Battery Cpacity Calculator (was: Odyssey % of charge)

The Peukert calculator at the bottom of this web page is very useful for 

determining the capacity of a particular battery under some load other 

than the rates given in the specifications.



http://www.geocities.com/CapeCanaveral/Lab/8679/battery.html



    You plug in the 20 hr rate and the reserve capacity (or the capcity 

at some other rate) and the webpage calculates the Peukert exponent. You 

them move down a bit and plug in the load of interest and the web page 

will calculate the capacity at that load.



    Quite handy. Very useful.



    Keep in mind that the temperature of the battery has a big effect. 

The capacity goes down the toilet on a lead-acid battery when it gets cold.



    Bill Dube'

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