Check the listing for details. '21-23 VW ID.4 HV battery preconditioning module. Condition: New. Listed at 79.00 USD. Finally a solution for '21-23 ID.4's to precondition the HV battery in cold weather for faster L3/fast charging! Once installed, just plug in the USB-C cable to an outlet in the vehicle and the HV battery will start preheating.