DFG Invisible Fence®️ Compatible R21 and R51 Dog Collar Battery - Year Supply (Perimeter Technologies®️)

*Ships ONLY within the United States*  


Each battery will last as long or longer than the original Invisible Fence®️ Brand batteries. Compatible with all Invisible Fence Brand R21, R51 and MicroLite®️ electronic dog fence receiver collars.


The battery design was approved by the chief engineer at the Invisible Fence®️  Company and are manufactured in a state of the art facility in Pennsylvania under his supervision.

  • Includes 3 batteries which will last a year under normal usage.
3-volt lithium battery for the Invisible Fence brand collar.


  • 0.25 lb
  • Available
  • Ships within 1-3 days