Looked at Toyota parts online and they all claim that part number 74482-47010 is what I need but is sure looks like a HC battery part in the drawing? So what is the real Toyota part number? or am I reading that drawing wrong My used Prius Prime didn't have a hold down on the 12 volt.
I believe it's a pinch clamp at the base of the battery. I don't recall an over the battery strap. I'll look tomorrow.