DogWatch® 3.6 Volt Lithium Battery

Compatible with SmartCollar, R9, R9V, R8, R12, R3000, AR300 and most other older receiver models.

Typically lasts 2 years in R9 and R8 receivers; 1 year in the R9V and SmartFence; and 1 year in older receiver models.

It is very important to only use authoried batteries for your DogWatch products!