So ive been having issues with battery losing charge while the jeep (89 renix) is running. I hooked uo a multimeter today and instead of getting the 14 i should be getting. The voltage jumps around. As low as 1.3 and as high as 11.82. I have a brand new battery and alternator both testing good. The alternatornwire was fried so i fixed it as well. I cant figure out why my Voltage is so off.