Digital Maximizer: provides up to five times longer run time on a single charge by drawing only as much power as you need, so they don't waste any energy. These motors are variable speed, so dial in your precise speed and let Digital Maximizer deliver the right amount of power, while conserving your battery - extending your time on the water. Fully Encapsulated Electronics: Marine-grade urethane fully encapsulates Riptide control boards to protect the electronic circuitry. All electrical connections are sealed with waterproof heat-shrink tubing to keep saltwater out.