Zero Multi-Power Supply is Battery supported
This is a breadboard friendly power supply with multiple input options. It can be powered from a USB port or from attached AAA batteries. It also supports Lithium battery input, Single cell(3.7V) and
Dual Cell (7.4V,Max:9V) all supported. Output is 2 way adjustable (2-Way Adjustable 1-5V output) or Way Wide range & Adjustable (Vin-14V) output*. The project is currently live on kickstarter and has 19 days to go.