Lead-acid battery cell voltage is

Lead-acid battery cell voltage is

• A. 2.0V
• B. 2.4V
• C. 2.1V
• D. 2.2V

Answer: (D)

Lead-acid cells sit at about two volts per cell. In a healthy, resting state the voltage is typically around 2.1 to 2.2 volts, and 2.2 volts is the value most often cited for a fully charged cell in training materials. So the best single value to represent a per-cell voltage is about 2.2 V. The other numbers are less representative: 2.0 V is the nominal rating, and 2.4 V is more like a charging condition higher than the resting cell voltage. If you think in terms of a 12-volt battery made of six cells, that per-cell voltage would sum to roughly 12.6 to 13.2 V when fully charged, which aligns with using around 2.2 V per cell.

Lead-acid cells sit at about two volts per cell. In a healthy, resting state the voltage is typically around 2.1 to 2.2 volts, and 2.2 volts is the value most often cited for a fully charged cell in training materials. So the best single value to represent a per-cell voltage is about 2.2 V. The other numbers are less representative: 2.0 V is the nominal rating, and 2.4 V is more like a charging condition higher than the resting cell voltage. If you think in terms of a 12-volt battery made of six cells, that per-cell voltage would sum to roughly 12.6 to 13.2 V when fully charged, which aligns with using around 2.2 V per cell.