One-way storage basin valve

A vehicle comprising:

• a storage basin disposed in a floor of the vehicle and having
• a basin floor defining a first surface exposed to an interior cavity and a second surface opposite the first surface exposed to an exterior of the vehicle,
• an aperture disposed through the basin floor,
• a one-way valve disposed within the aperture having
• a base including a first ring wall including a first aperture disposed therethrough, a second ring wall coaxial with the first ring wall and including a second aperture disposed therethrough and angularly offset from the first aperture, and a central arching surface,
• a diaphragm disposed on the central arching surface,
• a cover secured to the base and defining an annular skirt region,
• a seal disposed in the annular skirt region, and
• a snap member projecting outwardly from the first ring wall;
• and
• a high-voltage battery disposed within the storage basin and secured to the first surface above the one-way valve.