View Single Post
  #8  
Old 04-22-2020, 06:55 PM
Bill Hanlon's Avatar
Bill Hanlon Bill Hanlon is offline
Ultimate Warrior
 
Join Date: Feb 2005
Location: Fredericksburg, TX
Posts: 2,645
Default

Quote:
Originally Posted by 65gto69 View Post
I measured the battery while turning on the headlights and the battery takes a dive down to about 1.5 volts, then the numbers go up slowly until it the voltage reads 12.1 volts. At this point when I turn the ignition on to spin the starter everything goes dead.
When the "battery dives down to 1.5 volts" where are you measuring? From the centers of the battery posts? From the clamps on the battery end of the cables?

__________________
My Pontiac is a '57 GMC with its original 347" Pontiac V8 and dual-range Hydra-Matic.