I purchased defective replacement batteries for my invisible fence, which I ordered online from www.petsafe-warehouse.com. After spending $41.97 for four batteries, two of which I found to be defective, I had my invisible fence system checked for problems. The only problem discovered involved the defective batteries. That determination cost me $80.00 for a home visit, but I was also provided batteries that worked for an additional fee. When I asked for my money back from Petsafe, they refused because the battery provider they used wa... read full review »