Dear Customer,
As we are not aware of the license terms used in your application. Hence, we would not be able to specify if the exhaustion of HASP key's battery can affect the application. However, we would like to inform that if the license type used is Time or Expiration date base then it may affect.
In order to replace the HASP key, please contact your vendor to get a new key with licenses required for your application.
Thank you,
Gaurav Bhanot