On average you will need to change the battery (2 CR1/3n cells end to end in blue shrink wrap pictured above the quarter) in the battery powered receiver collars every 6 months or twice a year. Batteries can be purchased through Hidden Fence of Minnesota for $12.50 each or save $10 and buy a four pack for $40.
If you decide to purchase a system and have us install it, we will give you the opportunity to receive 10 Free batteries (5 year supply for one dog) from us for completing a simple review of our performance on any social media site.
You may also purchase them at any store that sells individual CR 1/3n batteries. Most people find it easier to purchase them from us since they come pre-assembled and ready for use.