Get an ideal replacement for the once popular Eveready E135N with the Exell A135 7.5v Alkaline Battery (EN135A, 5LR50, PC135A). This alkaline battery can be used in Pioneer Electric and Research Corp’s compact tachometers such as the Pioneer Photo-Tach Model 36. It is also utilized in various industrial applications and electronic testing equipment. The battery produces 7.5 V, and its voltage is a bit higher than the 5.6 V of the mercury cell. Most devices that run on E135N will accommodate the slight increase in voltage and function correctly. Offering high efficiency and long-lasting performance, the Exell A135 7.5v Alkaline Battery (EN135A, 5LR50, PC135A) offers you excellent value for money and reliability.