This document discusses the design of an optimal battery charging system for a solar-powered robotic vehicle. It proposes using tracked solar panels and a smart host microcontroller to implement an intelligent energy management system. This system was tested on an autonomous exploration robot called VANTER. The system allows the solar panels to track the sun for increased power generation. It also uses two batteries that can be charged independently, with one powering the robot while the other charges. This provides continuous power without downtime during charging.