: Available at Walmart for around $26.99, these often offer higher milliamp-hour (mAh) ratings for potentially longer runtimes. Tenergy Battery Packs Go to product viewer dialog for this item.
You can buy official replacement batteries directly from the iRobot website or through authorized retailers like Amazon , Walmart , and Batteries Plus . Authentic iRobot Options where to buy irobot roomba battery
: A standard replacement for many 600, 800, and 900 series models. Third-Party & Budget Alternatives : Available at Walmart for around $26
: Often cited by community reviewers as a "good value" alternative for around $30. How to Identify the Right Battery where to buy irobot roomba battery