Covenant recharge station
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You may also be looking for the Covenant's methane recharge stations or the Huragok recharge stations.
These recharge stations are a piece of battlefield logistics equipment used by the Covenant's military forces. The stations are cruciform, bilaterally symmetrical and covered at the center of the base by a maroon-colored cowling. They are used to recharge a specific type of large, cylindrical cell, which is placed on top of the station for the duration of the process. One or more such cells, along with other Covenant field equipment such as plasma batteries, are also commonly found in the vicinity of recharge stations.
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