What is the battery life on the Pro? October 03, 2023 18:46 Updated Up to nine months! That is miles ahead of the competition. Related articles How to reset your Pro Sonic Toothbrush? Is the Pro good for whitening your teeth? How do I replace the batteries in my BURST Nova Sonic Toothbrush? There is a gap between my BURST Pro Toothbrush head and the handle, Is this normal? How is the BURST Original Toothbrush different from other sonic brushes?