I prefer the Motorola Micor TPN1105A/TPN1106A Power Supply /
Battery Charger for the repeater site installation.
Everything needed is built in.
Neil - WA6KLA
Dave VanHorn wrote:
>
> >
> >Remember to set the Astron voltage to the battery float voltage,
> >and the float voltage for a sealed lead acid (i.e. gell cell) is
> >different than that of a wet lead acid and is different than a
> >nickel-cadmium bank. The Astron actually has to be set to
> >the float voltage PLUS the voltage drop of the series diode.
>
> Just for chagrins, why use a diode?
> I simply float the battery across the bus.
> No diodes, no relays, no problems :)
>
> At home, I set things up a bit differently, I use a much smaller
> power supply since it has a lot more time to refill the battery.
> Essentially any supply that has non "foldback" current limiting,
> works nicely. The right supply has a current limit, and it will
> output that current into a battery or a dead short, 24/7. The
> foldback units are kind of useless for battery floating, when you hit
> a limit, they drop their output current to some much lower level,
> until the load goes away entirely.
>
> Switchers work nicely too, but some have no real current limiting,
> which is a bad thing.
>
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
