Mobi the Lunar Bot

Mobi uses a solar energy and static electricity from the friction of it's feet and arms to get energy. It collects regolith through a vacuum tube in it's feet and arms. The arms can expand in length to reach further distances. The collected regolith is stored in it's body until it reaches it's location to dump it out through the tube in it's extendable arms. As long as Mobi is moving it will never run out of energy because it makes static electricity by moving around. Mobi has a battery pack to store any unused energy.