Refill your energy.
Ship is Disabled during core cycling.
This ability is granted by all Primary equipment in the Power Hub with the exception of the Short-Cycle Power Hub and the Volatile Power Hub.
The base time to complete Reload is 1.5 seconds. However, this number can change significantly depending on other equipment. It can never go below 0.75 seconds.
Reloading disables your shields. Your HUD will still show a shield bar, but damage you take while Reloading will go to your hull.
If you're Overcharged, Reload will set your energy to your normal maximum. This can be useful if you're running an Overcharge build and are about to Overload. (Find a safe spot to do this first.)
If you're trying to refill an ammunition based weapon, try Restocker.