How many volts is a nickel cadmium battery?

How many volts is a nickel cadmium battery?

• A. 3.0V
• B. 1.5V
• C. 2.0V
• D. 4.5V

Answer: (B)

Nickel-cadmium cells have a nominal voltage of about 1.2 volts per cell, but when they are freshly charged the terminal voltage can rise toward 1.4–1.5 volts. So a single NiCd cell can read around 1.5 volts when it’s fully charged, which is why that value matches best. In practice, a NiCd battery used in equipment is usually a pack of several cells in series, so the pack voltage is roughly the per‑cell voltage times the number of cells (for example, four cells around 4.8 V when fresh). The other numbers don’t align with typical per‑cell voltages for NiCd chemistry.

Nickel-cadmium cells have a nominal voltage of about 1.2 volts per cell, but when they are freshly charged the terminal voltage can rise toward 1.4–1.5 volts. So a single NiCd cell can read around 1.5 volts when it’s fully charged, which is why that value matches best. In practice, a NiCd battery used in equipment is usually a pack of several cells in series, so the pack voltage is roughly the per‑cell voltage times the number of cells (for example, four cells around 4.8 V when fresh). The other numbers don’t align with typical per‑cell voltages for NiCd chemistry.