For 5v power, I've used one of these with good results: https://powerwerx.com/usbbuddy-powerpole-usb-converter-device-charger 73 Stephen K1LNX On Mon, Jul 10, 2017 at 1:12 PM, Mark Phillips <g7ltt@g7ltt.com> wrote:
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.
Mark
On Mon, Jul 10, 2017 at 12:13 PM, Scott Zimmerman < n3xcc@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-ban k-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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