Method for operating a switching arrangement of an energy storage system of a vehicle

A method for operating a switching arrangement of an energy storage system of a vehicle, the energy storage system comprising a plurality of parallelly arranged battery packs and the switching arrangement comprising an associated contactor for each battery pack, the contactors being configured to connect the battery packs to a power apparatus being a load and/or a power source by closing, and disconnect the battery packs from the power apparatus by opening, the method comprising:

• identifying a battery pack to be disconnected from the power apparatus, the battery pack being one of a plurality of battery packs connected to the power apparatus, providing measured current of the identified battery pack,
• in response to that that the measured current of the identified battery pack is higher than a predetermined threshold value, reducing the current of the identified battery pack, and
• in response to that the measured current of the identified battery pack is lower than the predetermined threshold value, or in response to that a predetermined time period has lapsed since the step of reducing the current of the identified battery pack,
• opening the contactor associated with the identified battery pack to disconnect the battery pack from the power apparatus.