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

Bryan D. Boyle bdboyle at bdboyle.com
Mon Jul 10 12:52:34 EDT 2017


I like that...didn't see the one with the micro usb plug when I bought a box of the other ones with just fly leads 6 months ago.

I'd complete it with a good 12v PS, a powergate, nice sealed gel auto battery, and a brace of these to power both the step-down feeding the Pi and the radios.  

I guess if you wanted to get fancy, you could wire in a couple coax bypass relays (if you've an amplifier after the exciter) controlled by wall current presence to cut the flamethrower out of the circuit and run in degraded mode if you lost mains.

Isn't this more fun designing?  

--
Bryan
Sent from my iPhone 6S...No electrons were harmed in the sending of this message.



> On Jul 10, 2017, at 12:13, Scott Zimmerman <n3xcc at repeater-builder.com> wrote:
> 
> 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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