I always used only PetSafe brand however in an attempt to save money I purchased a different generic brand... never again. Every single one of the others only lasted a week, therefore I went back to the PetSafe. I gave only 4 stars this time as one of the batteries only lasted a week... the only time this has happened to me with this brand. I will continue to purchase only this brand.
These batteries are complete garbage. When they fail after a couple of days and your dog wanders off you will regret ever thinking about saving some money. I thought it might have been a fluke so I tried another then another..... They are either bootlegs or expired and being sold as fresh. Buying batteries on Amazon is a mistake and it is a mistake I won't make again.
The item shipped and was received quick. The battery life is just as quick. I'm on my 3rd battery so far and I've only had them for 2 weeks. I could see it if my dog kept running out of range but he has learned to stay near the house.