Replacement batteries for invisible Fence® and other Dog Collars
Note: The PX28 size batteries come in two difference lengths. The PX28S is shorter than the PX28A or the PX28L. Please check the dimensions of your battery before ordering. The PX28S is 21mm (0.83") Long. The PX28A and PX28L are 25.2mm (0.992") Long. If your battery looks like it has 4 cell shrink wrapped together you probably has the shorter PX28S.
