Located in several sections that are filled with electrolyte (liquid that moves electricity) and diluted acid. Positive plate is lead dioxide and negative plate is spongy lead-plates. The voltage of one fully charged section without load is 2.1 volts that is usually rounded off to 2 V. This voltage is also called electric power (EP). If there are six sections in a row (they can be called cells) then the EP of such a battery is 12 V. Additionally a battery section contains separators – acid-resistant and liquid-pervious partition walls that separate the opposite terminals.