to 1.5 volts. Later developments dispensed with the ammonium chloride completely, giving a cell that can endure more sustained discharge without its internal resistance rising as quickly (the zinc chloride cell).
Up to 1.5 volts. Subsequent advancements dispensed with the use of ammonium chloride, thereby enhancing the cell's ability to sustain longer discharges without its internal resistance escalating as quickly (the zinc chloride cell).