Battery chargers are devices for charging rechargeable batteries

Electrical contacts and contact materials are soft, high-conductivity, oxidation- resistant materials that are used in circuit breakers, relays, switches, and electrical discharge machining (EDM) applications.

Electrical and EMC testing services evaluate parts and products for electromagnetic compatibility (EMC), electromagnetic interference (EMI), radio frequency interference (RFI), dielectric properties, conductivity, electrostatic discharge (ESD), insulation resistance, and other electrical characteristics

Solders include low melting point metal alloys usually in wire, powder, preform or paste forms.

Environmental exposure (climatics) testing services use humidity, pressure, temperature, vibration, exposure to ultraviolet light (UV) and other climatic variables to test samples, parts and components, and finished products.

Electrical connectors are devices that join electrical circuits together.

Ultracapacitors store charges (energy) by physically separating positive and negative charges (unlike batteries which do so chemically).