What I've seen so far-a lot of aftermarket stuffs on it.
Disconnecting a battery cable is a bad practice-uncontrollable voltages will kill the rectifier as mentioned.
Engine not running measure the open voltage of the battery should read atleast 12.4 or better.
Now fire it up measure it again should read somewhere between 13.5 -14.5 if not the alty went south bound-I know what you're thinking, forget about the voltage regulator-change the alty. Its okay if the VR is an external.
HTH Good Luck
Wednesday, February 3rd, 2021 AT 4:33 PM