Arduino with LiPo batterries.

Hi, I want to use the type of Li Po(3.7 V) to give the power to my Arduino.

Am I need to use step up or any circuit and how do I hook it up to Arduino(power pin or Vin pin).

Thanks

Suggest:

https://www.sparkfun.com/products/11231

or

https://www.sparkfun.com/products/10255

and a little reading on how to connect them.

Hi, I can only get 5v set up breakout (https://www.sparkfun.com/products/10968) from littlebirdelectronic (http://littlebirdelectronics.com/produc … p-breakout) and (http://littlebirdelectronics.com/produc … -vpack-pcb). Can I possible to use for instance LiPo Booster.

Thanks