Ready to take your Arduino or Raspberry Pi on the road? The Powerboost 1000 gives lets you use a LiPo battery (which run around 3.7V) and boost it to 5.2V @ 1A. This means that you can power your portable Pi or Arduino project off of a LiPo using a converter which is slightly bigger than a quarter. The best feature of the Powerboost 1000 is that you can plug in a micro-USB cable and power your device while you charge the LiP battery. You can also solder a switch to the board which makes your portable project much easier to tame.