MIGHTY MAX BATTERY 14.4v Battery for Roomba 500 510 530 532 535 540 550 560 562 MAX3471800 - The Home Depot
The best robot vacuum cleaners to get in 2023 - The Verge
Roomba® 500 Series AeroVac™ Bin in White | iRobot | iRobot
Amazon.com - Replacement Parts for iRobot Roomba 500 Series Roomba 510 530 535 540 Vacuum Cleaning Robots Other Models with Green or Red Cleaning Head. -
User manual iRobot Roomba 540 (English - 19 pages)