How often are batteries, cartridges and roller brushes generally replaced? Customer Support August 17, 2021 08:34 Battery is expected to be about 2-3 years. The cartridge and roller brush is best be changed every 3-6 months. Related articles Can I clean both wet and dry waste? What floors are suitable? Can I add detergent or sanitizer? Can hot water be added? App instructions Life expectancy?
