I would think yes. Anytime you use more of the machine's functions, it will drain the battery quicker, but adding sensitivity is better than adding additional filters or other functions (circuits). I don't think you will see a massive drain on your batteries if you set your machine's sensitivity up by a couple of numbers. I would think it would be minimal. I ran my DFX hot all the time and never had a battery issue. They lasted the full hunt and more.