Electric vehicles can be charged using three main methods: Level 1 (slowest), Level 2 (mid-range), and Level 3 (DC Fast Charging, fastest). These methods differ in their voltage and charging speed. Level 1 uses a standard 120V outlet, Level 2 uses a 240V outlet, and Level 3 uses a DC fast charger, often found at public stations.

High-voltage cable shielding layers are designed to protect the cable and surrounding equipment from electromagnetic interference (EMI) and to provide a path for fault currents to ground. They are typically composed of either a braided wire shield, an aluminum foil tape shield, or a combination of both. Additionally, semi-conducting layers are used to even out electric stress within the cable.

Overmolding is a process where a plastic material is injected into a mold containing a pre-assembled connector harness, creating a protective outer layer that encapsulates the wires and connectors. This process, typically using injection molding, provides enhanced protection against environmental factors, improved strain relief, and can integrate complex shapes or textures.