As shown in the cutaway view of the lead acid battery in figure "A" of the illustration, if one half of the battery's cells are revealed by the cutaway section (with the other half remaining hidden from view), what is the nominal output voltage of the battery? EL-0031

Correct Answer: Option C — 12 volts

Standard marine lead-acid battery cells possess a nominal open-circuit voltage of 2 volts each. A 12-volt marine battery consists of six internal series-connected cells; revealing half of them equates to three active cells generating 6 volts.