Hi just to share my experience with Hankook.
I have used Hankook dry batter for two years. although i had to replace them every 12 months. I have experienced that after every 10-11 months the battery suddenly dies. I parked the car at night in the morning it was dead. And i had to jump start it. One one incident i drove the car to CNG pump, switched it off, got the gas filled and when tried to give ignition it just wont start.
I discussed this with my mechanic (who is an automobile engineer) and he confirmed that in dry batteries sudden death is a common complaint.
So now i have switched back to AGS - 50 Amps battery.
Can anyone confirm similar findings with dry battery?