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(ET) Fully charged pack voltage




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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