This 4LR44 (PX28A A544 L1325) is a popular alkaline (Manganese Dioxide) cell
that is commonly used in cameras and remote control devices.
This 4LR44 (PX28A A544 L1325) battery 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.
Also known as: PX28A, A544, 4LR44, K28A, V34PX, 7H34, 4NZ13, V4034PX,
L1325, 4G13, 4034PX, PX28AB, 1414A.