Your battery is definately suspect.Give it a good charge and check it again. If it drops like that when you turn on the lights replace it.A fully charged battery in good condition will read about 14.2V when fully charged. When you turn the key to start it will drop to about 11 and come back up when you turn the key off.
Answers & Comments
Your battery is definately suspect.Give it a good charge and check it again. If it drops like that when you turn on the lights replace it.A fully charged battery in good condition will read about 14.2V when fully charged. When you turn the key to start it will drop to about 11 and come back up when you turn the key off.