These are following places where you can get your AC Delco Batteries.

1. Industrial Area - Jaidah Trading Street 24 I guess. Contact Mr. Sonny.
2. Doha Petrol Station - C'Ring Road
3. AC Delco Service Center @ Salwa Road ahead of Teyseer Patrol Station
4. AC Delco Service Center on Airport Road.

I hope this info helps ! Good Luck