Performance and Accessories 2nd gen only Talk about Dodge/Cummins aftermarket products for second generation trucks here. Can include high-performance mods, or general accessories.

Replacing batteries in pairs?

Thread Tools
 
Search this Thread
 
Old Nov 11, 2005 | 11:52 AM
  #1  
Bobcat698's Avatar
Thread Starter
Registered User
 
Joined: Mar 2005
Posts: 1,146
Likes: 0
From: Amherst, WI
Replacing batteries in pairs?

When I got my truck it had the taller, narrower batteries in it.
I swapped in a set of nearly 3 year old batteries that are shorter, but overall wider and bigger when my buddy sold his old Ford diesel. The old ones were 600 something CCA, then new ones are 880CCA.

Anyways, I noticed it was getting a little boggy when I went to start the truck in 30-40 degree weather, which just isn't going to cut it when temps get to 20 below around here.

The batteries are still under the pro-rated part of the warranty so I got them tested. One put out only 54CCA, and the other around 600CCA.. It indicated that the "good" one needed to be recharged. I assume that is because the other battery was drawing the whole system down.

So I got the old battery replaced and paid $28.00 for the $58.00 battery because of the pro-rated warranty. So now I have a brand new battery and a 3 year old battery in the truck.
Should I replace the other one or leave it until necessary?
Reply
Old Nov 11, 2005 | 12:19 PM
  #2  
Lary Ellis (Top)'s Avatar
Admin Team Leader
 
Joined: May 2002
Posts: 15,514
Likes: 207
ALWAYS replace both battery's at the same time, if you don't the old one will end up killing the new one as well.
Reply
Old Nov 11, 2005 | 12:21 PM
  #3  
TxDiesel007's Avatar
Registered User
 
Joined: Dec 2004
Posts: 3,411
Likes: 2
From: Laredo
Garrett

I did the same thing that you did when i had my old ford, I replaced one battery at a time, and all it did was just put more wear and tear on the newer battery, The batteries work in unison to start the truck, and if one battery is better, stronger or holds more of a charge than the other one, then the newer one will pay more deeply to start up the truck. I just replace both of mine at the same time and at least know that they are as equal as possible.

Sorta the same scenario when you charge the batteries on ur diesel, You hook up to one battery, and since they are hooked in unison, you charge them both up anyways, The charge function and energy drawing function work the same on both batteries, so might as well have them as equal as possible...

This is my 1.5 pennies

Tx
Reply
Old Nov 11, 2005 | 09:02 PM
  #4  
displacedtexan's Avatar
Banned
 
Joined: Apr 2005
Posts: 3,337
Likes: 0
From: Place with no quail:(
The guy that had my truck before me replace just one of the batteries...

Two days after I bought it they were both DEAD, one would not even power up the tester at Sears. So I got two Red Tops
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
paparcl
24 Valve Engine and Drivetrain
11
Sep 21, 2012 06:03 PM
hotdram
Towing and Hauling / RV
24
Jan 12, 2006 04:26 PM
billmac
Performance and Accessories 2nd gen only
14
Oct 7, 2004 10:40 AM
Stevie G
Towing and Hauling / RV
2
Mar 21, 2003 06:10 PM
Lary Ellis (Top)
3rd Generation Ram - Non Drivetrain - All Years
7
Nov 2, 2002 01:07 PM




All times are GMT -5. The time now is 09:56 PM.