thats what i meant i never disconected orginal alt postive to bat wire. i justed added 4 guage wire from alt postive to bat postitve and i got total reading of 17.6 volts. when i disconect the 4 guage wire im back at 14.4 volts wich is good. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif but how can i do the big 3 because with wout the 4guage alt postive to bat postive i get alot of dimming