Nickel-cadmium batteries are used predominantly in which type of equipment?

• A. Automobile Starters
• B. Cordless, Rechargeable Equipment
• C. Single-use Primary Batteries
• D. Industrial Machinery

Answer: (B)

Nickel-cadmium batteries are rechargeable and capable of delivering high current over many cycles, which makes them ideal for portable, high-drain use. That’s why they’re used predominantly in cordless, rechargeable equipment—devices you power on with a battery pack and carry around, like cordless tools or portable devices requiring reliable bursts of power.

Automobile starters rely on large lead-acid batteries designed for very high cranking amps, not small, rechargeable NiCd packs. Single-use primary batteries are non-rechargeable, so NiCd isn’t used there. Industrial machinery may use a variety of power sources, but NiCd’s niche strength is in portable, rechargeable applications rather than stationary or large-scale equipment.