Ordered a V/R off the interweb, is what you did wrong
I've had a few that I've put on in the past that would over charge.
The best way I found to remedy that was to remove the cover and adjust it.
I know easier said then done.
Here is a series on making adjustments on a regulator
https://www.youtube.com/watch?v=W8C26XOFAhM
This guy's got some impressive knowledge.