* RFA (Remote Fuel Actuator): This is a component in some Chevrolet vehicles, but it's not directly related to a battery. The RFA controls the fuel flow to the engine.
* Battery type: Chevrolet vehicles use various types of batteries, such as lead-acid, AGM, or lithium-ion. The specific battery type might have a model number or code that includes "RFA2".
To provide more accurate information, please clarify the context in which you encountered the term "RFA 2 battery."
For example,
* What vehicle model are you referring to?
* Where did you see the term "RFA 2 battery"?
* What were you trying to find out about the battery?
With more information, I can provide a more helpful and accurate response.