<div dir="ltr">I use one of these to power the Pi that runs my 3D printer. It's wired in to the printer supply. One switch does it all. they are great little gizmo's. I bought a second one to run the Pi based hotspot in my car - when I get around to it.<div><br></div><div>Mark</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Jul 10, 2017 at 12:13 PM, Scott Zimmerman <span dir="ltr"><<a href="mailto:n3xcc@repeater-builder.com" target="_blank">n3xcc@repeater-builder.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Ramesh,<br>
<br>
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:<br>
<a href="http://www.ebay.com/itm/262908222815" rel="noreferrer" target="_blank">http://www.ebay.com/itm/262908<wbr>222815</a><br>
<br>
Using 12v storage makes things more "standard".<br>
<br>
Just my 2c.<br>
<br>
Scott<span class="HOEnZb"><font color="#888888"><br>
<br>
Scott Zimmerman<br>
Amateur Radio Call N3XCC<br>
474 Barnett Road<br>
Boswell, PA 15531</font></span><span class="im HOEnZb"><br>
<br>
On 7/10/2017 11:38 AM, Ramesh Dhami wrote:<br>
</span><div class="HOEnZb"><div class="h5"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi Folks:<br>
<br>
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?<br>
<br>
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.<br>
<br>
In case folks are interested - here is a link to a good article providing a review of various products:<br>
<br>
<a href="http://www.theoutpost.org/6-techy/raspberry-pi-usb-power-bank-ups-pass-through/" rel="noreferrer" target="_blank">http://www.theoutpost.org/6-te<wbr>chy/raspberry-pi-usb-power-ban<wbr>k-ups-pass-through/</a><br>
<br>
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.....<br>
<br>
Anyone have a lead on such a product?<br>
<br>
Thanks!<br>
<br>
Ramesh, VA3UV<br>
<br>
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