: Newer models (e, i, j, s, 900 series) typically use Lithium-Ion , while older models (500-800 series) may use NiMH (Nickel-Metal Hydride).

: Look at the first digit of your model number (e.g., Roomba 675 is part of the 600 series).

Official batteries are recommended to maintain your warranty and ensure compatibility. Most official lithium-ion and XLife batteries are priced around $99.99 . iRobot McKinley Replacement Lithium Ion Battery Go to product viewer dialog for this item.

: A standard replacement for many 600, 800, and 900 series models. Third-Party & Budget Alternatives

You can buy official replacement batteries directly from the iRobot website or through authorized retailers like Amazon , Walmart , and Batteries Plus . Authentic iRobot Options

: Designed for the 500, 600, 700, and 800 series. It is noted for delivering twice as many cleaning cycles as previous models.

: Check the bottom of your current battery for a specific part number like ABL-D1 or 4624864 to ensure an exact match.

: 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.