The Exell A136 9v Alkaline Battery (6LR50, EN136A, PC136A) provides efficient and long-running performance. This alkaline cell also functions as replacement batteries for many applications ranging from vintage cameras to sophisticated medical testing equipment. It is utilized as a substitute for the Eveready E136N batteries commonly employed by Pioneer Electric and Research Corp’s portable tachometers like the Photo-Tach Model 36. The battery is also used in the IRD 306 meter and many other industrial devices. The Exell A136 9v Alkaline Battery (6LR50, EN136A, PC136A) produces 9 V, which is higher than the 5.6 V produced by an equivalent mercury cell. Even though the voltage is higher in this battery, most devices will accommodate the increase and work correctly.