I've experimented with several of these class of device.
They are a 3.7V Lithium battery with a charging and discharging
circuit attached.
Like the high current power adapters, the outputs are not always 5V;
sometimes they are somewhat higher, so that at high current charging
the voltage at the o
excellent, better than the one I found
From: George Hunt
Sent: Friday, February 27, 2015 9:56 AM
To: Tim Moody
Subject: lithium battery
I'm excited about our discussion yesterday. Based on your research, what do you
think of:
http://www.amazon.com/gp/product/B00F4U49M6/
>From the comments
