Changing Both
Lead Driver
Joined: Jan 2008
Posts: 6,180
Likes: 83
From: Georgia
I usually do unless it just went bad and you were able to tell when it did. Or they are newer batteries. But like I said, if they have a couple of years on them, I usually do. Also, check your alternator to make sure it is not the problem.
Post Fiend
Joined: Mar 2013
Posts: 5,929
Likes: 287
From: EC Iowa
tampacamper, I would definitely replace both ,also check connections and test alternator then you are set and wont have to worry about it when you are trying to use it!
Elder User
Joined: Jul 2003
Posts: 551
Likes: 1
From: SW Montana
I am no expert, but I have been told by many that are, always change both. If one is bad, it will pull down the other one. In a very short time the good one will be bad. (My experience seems to colaborate this story.) Find some kid with an old truck that needs a battery and give him the good one. Feel good for helping some unfortunate soul, and confident you truck will start when you need it. Good luck.
Post Fiend
Joined: Mar 2013
Posts: 5,929
Likes: 287
From: EC Iowa
I am no expert, but I have been told by many that are, always change both. If one is bad, it will pull down the other one. In a very short time the good one will be bad. (My experience seems to colaborate this story.) Find some kid with an old truck that needs a battery and give him the good one. Feel good for helping some unfortunate soul, and confident you truck will start when you need it. Good luck.
and I agree with the part where he said "Find a kid that needs a battery and give him the good one" What a great thought ! Says a lot about his character!!
Lead Driver
Joined: Jan 2010
Posts: 6,600
Likes: 84
These trucks are wired in parallel so best practice is to replace all the batteries wired to that configuration when one of those batteries has become too weak to maintain a load.
I agree with golfmedik though, if a single but new faulty battery were to fail, I would only swap out that one.
I agree with golfmedik though, if a single but new faulty battery were to fail, I would only swap out that one.
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Senior User
Joined: Sep 2010
Posts: 181
Likes: 2
From: Tampa
Well changed both... Sears had them on sale for 111.00 each. Thanks for the info everyone.....
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