Here's a breakdown:
Gasoline Engines:
* 2006-2011: The most common battery type was a conventional lead-acid battery, typically with a 12V rating.
Electric Engine:
* 2012: The Chevrolet HHR was not offered with an electric engine.
Important Note:
* Always refer to your owner's manual or the battery label for the exact battery type and specifications for your specific HHR model year and configuration.
* If you're unsure, you can also consult a local auto parts store or a qualified mechanic.
Let me know if you have any other questions about the Chevrolet HHR!