How often should I recharge my Halo Collar and what is the expected battery life of the collar?

The Halo Collar will last for up to 20 hours on a single charge, depending on factors such as having the most up-to-date firmware and how much time you are spending in the app.  You should remove the Halo from your dog each night, and charge it overnight so you can start the next day with a full charge.