A managing system for cutting a plurality of lawns (102a, b..) comprising A) two or more robotic lawn mowers (101a,b..,201a,b..) which each has a rechargeable energy storage, and B) a carrier (105a,105a+b,111,205) comprising a) at least two holders (107a,b..,112a,b..,207a,b..,307a,b..), each of which is capable of retaining one of said two or more robotic lawn mowers (101a,b..,101'a,b..,201a,b..) and b) a charging system (231/235+233+234) for said rechargeable energy storage. The invention also comprises the carrier (105a,105a+b,111,206) as such and a method in which the system and the carrier can be used. The mowers are typically battery powered.
