What if my battery dies during a session? Replace them immediately. You will need to start your toning session again. Related articles What toning programmes does the Abs5 feature? What do I need to work the Slendertone Abs5? Where can I view my toning session progress? How do I assemble the Abs3/Abs5 belt correctly? Slendertone Abs5 Unboxing & Set Up Video Comments 0 comments Please sign in to leave a comment.