RoombaCharger has been created to clearly show on one page the various options available for buying a replacement IRobot Roomba mains AC power adaptor for use in the UK and other countries.

This is listed as a compatible mains power supply adapter for use in the UK and will charge the Roomba 400 series. This includes the Discovery series - (UK model numbers 5545, 5247, 5107), Roomba Red and Roomba Dirt Dog.

This looks like a genuine IRobot power adapter for the 500 series Roomba (although it should also work with the older 400 series Roomba). The photo on their website shows a U.S. style 2-prong plug.

This is a genuine IRobot product for the 500 series Roomba. The photo on their website shows a U.S. style 2-prong plug, although the description specifies this is a UK product, so should plug into a 240V mains socket. This should also be compatible with the older 400 series Roomba.

This 110-240V 2 prong AC power supply adapter for use in Europe will charge the 400 series Roombas.