The Roomba operates with internal nickel-metal hydride batteries (NiMH) and must be recharged regularly from a wall plug, although newer second and third-generation models have a self-charging homebase they automatically try to find (via its infrared beacons).
The Roomba operates with internal nickel-metal hydride batteries (NiMH). The Roomba must be recharged regularly from a wall plug. Newer second and third-generation models have a self-charging homebase. They automatically try to find (via its infrared beacons).