On Fri, 19 Feb 2010 10:07:55 -0600 Fred James <[email protected]> wrote:
<snip> > >> > Tim Wescott > Thank you for the clarification > The APC documentation indicates stringing one or more "battery packs" > to the BBU - if one were to try to duplicate this with just batteries > and wire, I am assuming (pardon my ignorance here) that one would > want to wire those extra batteries in parallel - is that true? IIRC > parallel (+ to + and - to -) delivers the same current but for > longer, and series (+ to - as in a flash light) delivers a higher > voltage but not for longer? Thanks again > Regards > Fred James > > Correct.. In parallel it is + to + etc... The problem is...Unless the batteries have identical Voltage the most positive battery will see the other battery as a load and discharge into it for some period of time. Till the charges are equal.. YMMV Marvin _______________________________________________ PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
