testing batterys
testing batterys
Hotshot
Joined: May 2005
Posts: 13,484
Likes: 42
From: Stevens Point, WI
Yes they have to be disconnected from each other.
Looking for a weak battery, easy home test is to try and start the motor with one battery at a time. One GOOD battery should start a 7.3, if a battery has a dead cell or is weak it won't start the motor.
Looking for a weak battery, easy home test is to try and start the motor with one battery at a time. One GOOD battery should start a 7.3, if a battery has a dead cell or is weak it won't start the motor.
Lead Driver
Joined: Nov 2008
Posts: 8,450
Likes: 70
From: South Jersey
i simply go to advanced auto and have them check all my batteries. My dads 2000 7.3 was starting hard and his batteries were only four years old. Brought them to advanced auto had them checked with the tester and both batteries were only putting out 230 cranking and 270 cranking. Far below their listed 850 cranking
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KingQatar
1999 - 2016 Super Duty
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Sep 5, 2010 10:43 PM
