1998 chrysler sebring conv. battery issues

I have a 98 chrysler convertible and I haven't noticed any issues with the electrical system or components but I have had to replace the battery twice. If I let the car sit for a day or two the battery goes dead. Does anyone have any Idea what may be causing this? I had the charging system checked and it was putting out. I appreciate any help. Thanks

you have a module not going to "sleep" or not powering down enough when you turn your key. When you turn your engine off and take your key out, there's still a slight drain on the battery to maintain the memory in your radio and clock, and other important memory accessories. Have someone to check that out and see what exactly is troubling you. That or you could have a dome light that doesn't go off completely and it drains the battery.