Pressure relief assemblies and methods

A venting system, comprising:

• a lid or base comprising a center wall that defines a central longitudinal axis, and a total radius that is measured from the longitudinal axis to an outermost periphery of the lid or base;
• and
• a pressure relief feature that is disposed along the lid or base,
• wherein the pressure relief feature includes at least a first venting feature defining a thinned region of the lid or base,
• wherein a venting radius is measured from the longitudinal axis to an outermost extent of the first venting feature,
• wherein the venting radius is less than about 40% of the total radius of the lid or base, expressed as a percentage,
• wherein the thinned region defines a region thickness that is less than about 40% of a maximum thickness of the central wall, expressed as a percentage, and
• wherein the pressure relief feature further includes a second venting feature that is disconnected from the first venting feature.