How long does the battery last? Dr. Boss 4 years ago A How long does the battery last? Posted on June 15, 2020 It supports more than 4-6 hours using time, amazing product Category: General Questions Permalink Related posts Kyphosis Treatment by Deep Muscle Stimulator & Exercise by Dr. Boss 4 years ago Elbows, shoulders, wrists massage is very good by Dr. Boss 4 years ago Human Kinetics – Athletic Therapy Today by Dr. Boss 4 years ago