Question 141Electricity & Electronics - Assistant Engineer

The correct answer is A) 12 volts. When individual 12 volt lead-acid batteries are connected in parallel, as shown in the illustration EL-0070, the total voltage of the battery bank remains at 12 volts. This is because batteries connected in parallel share the same voltage, but their capacity (in amp-hours) is additive. The parallel configuration allows the batteries to be charged and discharged together, but does not increase the overall voltage of the system. The other answer choices are incorrect because connecting the batteries in series would be required to increase the voltage, such as 24 volts (B), 36 volts (C), or 48 volts (D). In a series configuration, the voltages of the individual batteries would add up, but that is not the case in a parallel arrangement as depicted in the illustration.