In this situation something is pulling power from the battery. If you disconnect the negative battery cable and then lightly touch it to the negative post and see a fairly large spark you know something is on. You will always see a tiny spark due to power to the clock but the spark should not be very visible in the daytime. As it happens in just 2 hours it must be a heavy drain. First make sure no lights are on. Check the brake lights as the brake light switch could be stuck closed. It can be any light on the car but with a heavy drain I would suspect you have a relay that is stuck and it very well may be a power window, power seat, power door lock, relay. Sit in the car and operate all these and see if one is stuck. If you activate the power window switch and lower a window and it immediately goes back up when you release the button the relay is stuck closed. Check all relays.
Assuming you are asking about the voltage regulator, the voltage regulator regulates the voltage being put out by the alternator or generator so not to overcharge or undercharge the battery and maintain the correct voltage for the electrical system. In 1964, the Lincoln voltage regulator was externally mounted. In later years it became integral with the alternator.
voltage regulator is internal part of alternator
it should have the voltage regulator built into the alternator
The voltage regulator may be on the alternator.
On most vehicles today the voltage regulator is built into the alternator. If that is the case then just replace the alternator. If the voltage regulator is external on your vehicle then replace the voltage regulator.
I believe the voltage regulator should be on the back of the alternator
In all probability the alternator is not charging as it should. It could be from a bad voltage regulator or the alternator being defective.
Have you checked the fuses?AnswerMay be a bad voltage regulator. alternator is no good without a voltage regulator. that's what "turns on" the alternator.
Defective alternator or internal voltage regulator is bad.
It is built into the alternator.
The battery light comes on when the alternator output voltage is too low or too high. You have a wiring or regulator problem.The battery light comes on when the alternator output voltage is too low or too high. You have a wiring or regulator problem.
the voltage regulator is built into the alternator, check voltage at battery connections should be 14.5 volts