Club Car models between 1993 and 2013 may require an onboard computer (OBC) bypass for any non-factory charger to work properly.
If your charger resembles the one pictured on the right, an OBC bypass will be necessary.
Suggested OBC Bypass videos for reference:
https://www.youtube.com/watch?v=lfIUjlwd6og Club Car DS without kit
https://www.youtube.com/watch?v=RAulAzQR5Lg without kit
https://www.youtube.com/watch?v=_J98UejUisk with kit