Varta Primary Silver Battery V28 PX / 4 SR 44, Nickel-Oxyhydroxide (NiOx), 6.2V, 145 mAh-Single Pack

The Varta Primary Silver Battery V28 PX / 4SR44 silver-oxide cell are commonly used in cameras (such as the Minox 35ML, Bronica GS-1 and Canon AE-1), light meters and blood sugar testers. These high voltage batteries are also used primarily in remote controls for car central locking systems, garage door openers, etc.It is a popular replacement for the now discontinued PX28 mercury battery. These mercury batteries, no longer manufactured because of their toxicity, were variously known as PX28, 4MR44, V4034PX, 4H-C, 4NR44, HM-4C. It has a shelf life of 8 + years,. This Silver Oxide cell has exactly the same dimensions as the alkaline 4LR44s, but has a longer battery life. You can always use this silver oxide 4SR44 battery in place