Assuming that the electrolyte has had sufficient time to be uniformly diffused throughout the cell, if the open-circuit cell voltage as measured by a digital multimeter is 2.12, what would be the approximate specific gravity?

Correct Answer: Option C — 1.280

Open-circuit cell voltage correlates directly with electrolyte specific gravity. A fully diffused lead-acid cell reading 2.12 volts typically corresponds to a high specific gravity of approximately 1.280 at standard reference temperatures, indicating a fully charged state.