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

[Carl]

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
> 
> _______________________________________________
> App_rpt-users mailing list
> App_rpt-users at lists.allstarlink.org
> http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users
> 
> To unsubscribe from this list please visit 
> http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button"
> You do not need a password to unsubscribe, you can do it via email 
> confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.
_______________________________________________
App_rpt-users mailing list
App_rpt-users at lists.allstarlink.org
http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users

To unsubscribe from this list please visit http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button"
You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.