[App_rpt-users] USB Battery Bank that supports 'Pass Through Charging' and acts as a UPS for Allstar Nodes running on a Pi

Mark Phillips g7ltt at g7ltt.com
Mon Jul 10 13:10:36 EDT 2017


OK. so now your Pi is backed up. What about the rest of the network? Is the
ethernet swich, cable modem etc etc also on a UPS? No point otherwise.

On Mon, Jul 10, 2017 at 1:03 PM, Carl <carl at n7kuw.com> wrote:

> I have not used the buck converter linked below, but I have tried using a
> different buck converter to go from 12V to 5V for the Pi, and found it
> introduced an excessive amount of noise into the Pi (which carried over
> into the radio audio). Something to check as you develop your power scheme.
> Carl
>
> -----Original Message-----
> From: App_rpt-users [mailto:app_rpt-users-bounces at lists.allstarlink.org]
> On Behalf Of Scott Zimmerman
> Sent: Monday, July 10, 2017 9:14 AM
> To: Users of Asterisk app_rpt; app_rpt
> Subject: Re: [App_rpt-users] USB Battery Bank that supports 'Pass Through
> Charging' and acts as a UPS for Allstar Nodes running on a Pi
>
> Ramesh,
>
> If it were me, I would use a 7ah 12v backup battery with a "normal" 12v
> float charger, then use a buck converter to lower the voltage down to 5v.
> Something like this would do nicely:
> http://www.ebay.com/itm/262908222815
>
> Using 12v storage makes things more "standard".
>
> Just my 2c.
>
> Scott
>
> Scott Zimmerman
> Amateur Radio Call N3XCC
> 474 Barnett Road
> Boswell, PA 15531
>
> On 7/10/2017 11:38 AM, Ramesh Dhami wrote:
> > Hi Folks:
> >
> > Wonder if anyone has a lead on a USB Battery Bank that supports
> > pass-through charging and does NOT interrupt the output voltage when
> there is loss of commercial power?
> >
> > I'd like to use a battery bank on my remote node down in FL (renowned
> > for electrical storms!), so keeping the Pi up during brown-outs and loss
> of commercial power is a big plus.
> >
> > In case folks are interested - here is a link to a good article
> providing a review of various products:
> >
> > http://www.theoutpost.org/6-techy/raspberry-pi-usb-power-bank-ups-pass
> > -through/
> >
> > Unfortunately, the leading contender, the product from RS Electronics
> > (brings back memories of my "jollies" as an Apprentice heading up to
> Alum Rock in Birmingham ;) is not available in N. America.  There must be
> other equivalents out there.....
> >
> > Anyone have a lead on such a product?
> >
> > Thanks!
> >
> > Ramesh, VA3UV
> >
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