Check Charging system coming on while driving. Battery draw overnight

[Loveyourdj]

I have had a check charging system light and annoying beep come on while driving for about 6 months. I can not find the issue. In the last week the battery seems to have a serious parasitic draw when parked. The alternator checks out with 14amps while running and the battery is newer and strong. I have read about a wiper motor issue and a alternator as common parasitic draws. Any chance anyone has experienced this issue before?

 

[Don Hall]

 

[Trainmaster]

Check that your rear wiper's not ceased and trying to park itself.