Enclosures and methods for removing hydrogen gas from enclosures

An equipment enclosure includes an inner chamber having a top, a bottom opposing the top, and a plurality of sides between the top and the bottom, an outer chamber adjacent one of said plurality of sides of the inner chamber, and a wall extending between the inner chamber and the outer chamber. The inner chamber is configured to house one or more rechargeable batteries capable of releasing hydrogen gas over time. The wall includes one or more perforations to allow hydrogen gas released by the one or more rechargeable batteries to pass from the inner chamber into the outer chamber. The outer chamber includes an exterior wall having one or more perforations to allow the hydrogen gas in the outer chamber to exit the enclosure. Other example enclosures and methods of exhausting hydrogen gas from enclosures are also disclosed.