From Halopedia, the Halo wiki
Universe and lore
The following are locations on the map that are so named on the player's heads-up display during gameplay:
The map was seen again in the A New Generation trailer and was shown in even more detail in the Halo Infinite Multiplayer Overview trailer. Finally, in a Canon Fodder post on Halo Waypoint, Recharge had its name revealed and further story details divulged.