An energy storage module includes a motherboard and a connector that may convey power, ground, and I/O signals to and from the motherboard. The connector includes a non-metallic housing that includes a plurality of sections, each having a corresponding connector contact portion. A first contact portion includes a first non-metallic protrusion and a first plurality of metallic blade contacts positioned thereon, and the first metallic blade contacts may convey backup power. A second contact portion includes a second non-metallic protrusion and a second plurality of metallic blade contacts positioned thereon, and the second metallic blade contacts may convey a circuit ground return path for the backup power. Further, a third contact portion includes a third non-metallic protrusion and a plurality of metallic pin contacts positioned thereon, and the metallic pin contacts may convey input/output (I/O) signals, input power, and a circuit ground return path for the input power.