I can't confirm from posts whether the 24F battery for the RX330 is sealed or not. Can I open it up and add distilled water to this?

TIA.

 

Closing off on this issue:

I called a Toyota and lexus a dealer and service and parts advisor say that if it's a flat top battery then it is non-serviceable.

So much for my add distilled water maintenance routine.

 

Nowadays there is no service required on batteries. Last time I filled up water on batteries was 15 years ago.