With the use of a boost converter, a microcontroller can operate on a single battery cell by boosting it up to 1.8 Volts or higher. This allows systems to operate from one battery cell, and operate even when the voltage drops to 0.5 Volt. Alternatively, systems can be powered with a single 0.5 Volt solar cell. This paper will explore how to use a switched mode Pump to solve system power issues.