Originally posted by contourfreak22:
run your car at the same time disconnect the negative battery cble while the cars running if the car dies out it's your altenator.
DO NOT DO THIS !
The battery absorbs voltage spikes - disconnecting it while charging runs the risk of blowing any or all vehicle electronics found on newer cars.
"Those who cannot remember the past are condemned to repeat it" -George Santayana
| 
