Ultra Capacitor

This item allows the player to store surplus energy for sprinting, power-jumping, walking at a normal rate with insufficient energy sources, etc. They can also be installed in a power installation, such as a charging station, wind turbine, or solar array, and used to accumulate and store energy to draw from. Typically, that's also where they can be found.

Author's note: Through experimentation, I value the depth of the medium capacitor, the only one in version 0.0.3 that I'm aware of, to be around 5000Kj. Also, each appears to weigh 50Kg.