iRobot Roomba 600 Series Owner's Manual page 6

This symbol on the battery indicates that the battery must not
be disposed of with unsorted common municipal waste. As the
end-user, it is your responsibility to dispose of the end-of-life
EN
battery in your appliance in an environmentally sensitive manner
as follows:
(1) returning it to the distributor/dealer from whom you
purchased the product; or
(2) depositing it at a designated collection point
The separate collection and recycling of end-of-life batteries at
the time of disposal will help to conserve natural resources and
to ensure that batteries are recycled in a manner that protects
human health and the environment. For more information,
please contact your local recycling office or the dealer from
whom you originally purchased the product. Failure to properly
dispose of end-of-life batteries may potentially result in negative
effects on the environment and human health due to the
substances in the batteries and accumulators.
iv For more information, visit www.irobot.com/Roomba600