thank you for your responses, but my opener is very sluggish and will hardly penetrate the cork, even though it is plugged in and sitting on the charger all the time. There are tiny holes in the body of the opener that suggest another battery or batteries could be added?
It's rechargable and comes with a charger that you plug in. I always left it plugged in on the counter so it was always ready. It will open a few dozen bottles before a charge, but I just leave it in the charger all the time.