Fault Codes/Generac/2747Generac2747UnclassifiedElectricalWhat This Code MeansTest Warning; Battery is >16V or charge current is >600mA at end of 18 hour charge cyclePossible Causes•Writing “1” to Modbus reg 1625•Battery may be badSuggested Actions1Warning will auto-clear after 60 seconds. Power cycle controller2Problem 30 – Inspect Battery* page 139Related Generac Fault Codes275127932602280026012801260028022502280325012804Browse all Generac fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for 2747 on your specific Generac unit — cited to the OEM manual, not a forum guess.TRY IT FREE