In the past few months I have installed a new alternator and battery in my girlfriends acura legend, but the battery keeps getting drained. I have determined that there is something wrong with the electrical charging circuit but I don't know what exactly it could be. If anyone has some advice I would appreciate the help

Jon,

This link may help:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-selected-other-vehicles-46563-3.html#post241804