In article , Rickman wrote:
> I was looking for a Li-ion power source adapter and found this
> in the process.
>
> http://www.ebay.com/itm/112419803835
>
> Looks like it would serve as a UPS for a rPi in many situations.

Pi Hut and others sell the AdaFruit PowerBoost 1000 board that can do
what you want.

https://thepihut.com/products/adafruit-powerboost-1000-charger-rechargea
ble-5v-lipo-usb-boost-1a-1000c

It's more expensive, but proven for this sort of application. You need a
3.7V Lithium or Lithium polymer battery as well as the board.

--
Cheers,
 Daniel.

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