Yes. It is a quick swap every 24-36 hours. We recommend you change them proactively as a habit (like when you are brushing your teeth at night). The battery changing process was specifically designed to be easy for everyone, even those people with more limited dexterity. As an aside, our oldest Kanega Watch wearer is currently 103 and she has been regularly swapping out her depleted batteries on the watch for the fresh set of batteries sitting in her charger for nearly 3 years now with no issues.