Harley Davidson Sportster Battery Keeps Dying

I believe I have a battery drain.
Harley davidson sportster battery keeps dying. It was a sensor throttle position that was going out. Forgot to mention that I taped a couple 15 amp fuses to the inside of the battery cover for spares on the roadManster. AFTER REPLACING THE VOLTAGE REGULATOR AND THEN A NEW BATTERY AND CHARGING IT BIKE IS FIXED.
New battery on a harley Davidson keeps dying. The headlight begins to dim and continues to fade away. Tested per Clymbers Manual.
When I try to start the bike the ignition sounds and the lights on and everything just sounds like it is out of gas. V-Twin Harley Davidson forum. If the alarm ran until the battery died that is possible.
Tested per Clymbers Manual. The 4th day I went out to ride to work no rain I went out to start the bike and dead battery not even any lights or anything. Start driving again and a few mins latter itll start cutting out again.
My fuel light keeps blinking so the first time I just reached up and turned it a little harder clockwise and thats when it died. 14th June 2010 1849. Jump to Latest Follow.
Ok for my 2004 1200 Sportster I thought it was the battery cables cleaned them all up really good and worked fine for a while and came back. While driving the engine will lose power as if - Fixya. 2000 Harley Sportster 1200 Battery Keeps Dying.