(ET) Fully charged pack voltage

[Michael S Briggs <msbriggs alberti unh edu>]

I just got a nice new pack of Trojan T-605s (slightly lower capacity than 
T-105s, with a proportionately lower price). I'm trying to figure out what 
the voltage of a fully charged new pack *should* be, and I have seen very 
different things as skimming through the archives.
	My understanding is that the chemical reactions taking place in a 
lead-acid cell produce a potential difference of 2.13 Volts, so a fully 
charged lead-acid battery measured with a very high impedance voltmeter 
should measure that 2.13 Volts per cell, or 6.39V for a 6V battery, and 
38.34 V for a 36V pack.
	But, I have seen statements in the archives saying that a fully 
charged pack should have a voltage of 42V or so (various posts saying 
anywhere from about 40V up to 44V).

Thanks,
Mike

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Michael S. Briggs, PhD
UNH Physics Department
(603) 862-2828
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