what could be draining my new battery in my 2002 CRV?

Is this a new problem just after replacing your battery? or has your CRV been experiencing a battery drain for quite some time? How long does the vehicle sit between starts and how does it take before the battery seems to drain? Make sure you have a good battery, sometimes even a "new" one can be defective. The only way to determine an actual battery drain would be to perform diagnostics.

Get the vehicle down to Milt's Service Garage and have them test the circuits. It's the only to be sure.