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-throu...
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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