Management of a distributed battery arrangement

A method for managing a distributed battery arrangement, wherein the arrangement comprises a pool of battery assets. The arrangement allows capacity limits to be set for the battery assets. The capacity limits are a first capacity limit (C) defining minimum charge that is to be maintained in the battery asset; and a second capacity limit (C) defining maximum charge; wherein capacity falling between the first capacity limit (C) and the second capacity limit (C) is a usable capacity range (C). Usage of the usable capacity range (C) of the battery assets is controlled for balancing and/or optimization tasks.