Roger,

You are right.

And if u are using the IQ and :

If you don't need RTC(keeping) info in your application , neither quick position fixes on start-up then just forget about battery. Leave some place though on your pcb to accomodate it if you'll need it later. I will set NMEA out (needed sentences if other than default) at first time prog then it will stay in flash mem. Use the second com port. See also my message dated 18th february in this thread.

Good Luck