`http://www.thumpertalk.com/forum/showthread.php?t=570955 Basically everything works with the 12 v battery but the regulator doesn't seem to charge the battery. I get 15-50 ac v out of the stator lead Yellow/white but as soon as I hook it to the regulator the v dropps to about 7 then out of the regulator to the battery it is at 7v. I cna't figure it out. I am calling baja designs today, again. edit.. I have a new regulator coming under warranty. My fingers are crossed.