Silver Oxide Battery S1325 (RFA-16, 4SR44, 4G13, S28PX, PX28)
Compatible with 4LR44, 537, 2CR1/3N, 4SR44, 544, PX28, PX28L, V28PX, L544, 28SO, 4G13, 2CR1/N3, A544
Also known as 4SR44 PX28 4G13 V28PX S28PX
Compatible with RFA-16.
Extra long life battery.
Great for camera, dog training, many other applications.
Dog Collar Battery