The final schematic incorporates two current sensors and one voltage sensor to take the vitals of the TOP. This information is processed by an Arduino Mega, which then displays the corresponding information on the LCD. Everything can be turned off separately to ensure the greatest usability, and safety in maintaining the electrical system. In total there are four USB outlets and eight AC outlets the TOP can supply power for. There is a 30 amp fuse to protect the system in case something shorts. The system uses a 100 watt solar panel to capture energy which is conditioned with a solar charge controller. The battery is a bank of 72 lithium ion 18650s batteries.