This is a betavoltaic cell, designed to provide remote power for up to 2 decades. In theory, it will be able to provide enough power to actually be useful - A single cell should be able to run an Arduino, or slowly charge a phone, and multiple of them can power a raspberry pi. The full article is here: https://blog.scd31.com/2016/04/wip-a-betavoltaic-cell-to-power-all-the-things/

Parts list

A cell costs roughly $25 CAD, and leaves solar cells left over.

• Tritium vial: http://www.ebay.ca/itm/181911780380

• Solar cells: http://www.ebay.ca/itm/221912468332

TODO

• Research to determine efficency of solar cells, and therefore to determine the optimal arrangment of solar cells within the betavoltaic cell

• Design circuitry for applications where bursts of power are needed

Inspired by Jargon on Thingiverse: http://www.thingiverse.com/thing:1494163