Updating zwave device firmware without losing the configuration

Hi all,

I have a bunch of the Door/ window Sensor 6s from Aeotec that need a firmware update as they are misreporting battery status and driving me nuts saying they need recharging all the time. Anyways, they are zwave devices and ideally I would like to take them out of smartthings zwave network, add them to another network for a short time to perform the firmware update, then add them back into the smartthings network ideally without loosing any configurations or automations. Is this possible? or do I likely need to start over with these devices in order to perform the update?