Hello and welcome to justanswer.com
first there are two possiblilities here
you most likely have a battery draw causing the battery to drain fast
Why would the battery draw be sporadic like it is? Is there a way to discover where the draw may be coming from?
the first possibility is the a/c clutch relay is sticking. this is a issue in the past with this model
the other possibilty is the handfree link control unit is staying energized causing the battery to drain. this can occur even if you are not using the handsfree.
either way you will need to have the car diagnosed to see if there is a draw and what might be causing it. I suggest you take it to your nearest Acura dealer.
please ask as many questions as you need to to be completely satisfied. do not rate my service until we are done and you can rate my service good or above.
to answer yory question yes the draw can be sporadic because the a/c clutch relay will stick and unstick randomly. also the control unit for the handsfree will also stay energized sometimes and sometimes not.
you will need an ammeter around the positive cable and observe the milliamp reading. it should not be more than .80 mA. If you a lot more than that then you have a draw. you need to remove the a/c relay and see if the draw goes away
disconnecting the handsfree control unit to see if that is the draw.
replacing the relay or the control unit will solve the issue