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FastSS
11-07-2002, 11:01 PM
I jammed a slightly off sized optima red top into my Impala, but I knew it could be done/had been done before...<br><br>Is it possible to swap my crappy old style prostart batteries out for a pair of optima red top 34/78s?<br><br>they look like they should fit ???<br><br>Link to battery in question (http://www.optimabatteries.com/products/pdf/34_78.pdf)

Michael Az
11-08-2002, 08:19 AM
A lot of guys are running the Optima's, but I don't know the number. I am running Interstates.<br>Michael

FastSS
11-08-2002, 10:22 AM
well as far as I know there are only two sizes of optimas so im not going to worry about it too much... one is WAY too small, one is big but slightly smaller than the batts in the truck... ill just figure out a way to make it work =P<br><br>Thanks for your help

Thomas
11-08-2002, 10:43 AM
The Optimas are slightly shorter. Watch out for the wiring harness under the driver's side battery tray when you reinstall the OEM hold-down bolts.

Smokee
11-10-2002, 09:21 AM
I don't want to start a battery war, and I know that a lot of you folks are running redtops successfully. However, when I went to get redtops at my battery dealer, he advised against them. He said that with the heaters and so on in cold climate I would get more &quot;whack&quot; with interstates. He maintains a fleet of ambulances with PS and International (6cyl) engines. <br>He recommeneded the Interstates that he installs in these applications. They are slightly larger physically than the OEM batteries. They are also about half as much money as the redtops.<br><br>So far, the results have been very good.<br>george

Haulin_in_Dixie
11-10-2002, 02:48 PM
For the last few months I have been running only one red top and had not problems at all. That includes several 30 degree nights cycling the heaters. The red top is a bolt in, no acid, lighter, works great. I might even get the mate to it ::) <br><br>I have probably 40,000 or better on the one battery, it is flawless.

BriarHopper
11-10-2002, 04:40 PM
The biggest advantage to me, (just my opinion) would be the size. They are small enough you could fit two together on the driver's side fenderwell, freeing up the passenger side for more important things like twin/triple turbo systems and special air filters.....

11-10-2002, 06:41 PM
Did he say Triple Turbo System........BOING!!!!!!!!!!!! ;D

TxDieselKid
11-11-2002, 01:13 AM
<br>/triple turbo systems and special air filters.....<br><br><br>Tom,<br>I can donate my truck for some testing ig you would like me to test a system in hot, humid climate for you! ;D [eyecrazy]<br><br>Andrew

Haulin_in_Dixie
11-11-2002, 03:13 AM
Another choice is the yellow top. It is sort of a deep cycle starting battery. GMC truckes list the yellow top in Optima.

Geico266
03-17-2004, 07:54 AM
One thing not mentioned in this thread that helped in my decision to go with dual red tops is the weight loss. Optima Red tops are about 22 pounds lighter, each. That is 44 pounds less weight you are hauling around. Less weight = faster off the line, less wear and tear on the front end, ect. Not a huge deal, but a consideration for me as I do mostly city driving and short hauls.

I'm thinking way too hard here. [eyecrazy]

BigBlue
03-17-2004, 10:31 AM
Originally posted by Haulin_in_Dixie
For the last few months I have been running only one red top and had not problems at all. That includes several 30 degree nights cycling the heaters. The red top is a bolt in, no acid, lighter, works great. I might even get the mate to it ::) <br><br>I have probably 40,000 or better on the one battery, it is flawless.

Now if only you could get an engine to be as reliable.[laugh]

AlpineRAM
03-17-2004, 05:55 PM
BB [duhhh] don't be so cruel to Haulin [nonono].
I just wanted to say that IMHO you shouldn't use the dual terminal batteries wherre you don't need the other terminal. (More risk of shorting something, and more expensive than necessary)

AlpineRAM

bkrukow
03-17-2004, 06:28 PM
I stuck dual red tops in this winter when it was at its coldest (around -13* or so). It was taking the voltage gauge a while to come back up after cycling the grid heaters for 30-45 seconds when it was cold. It would stay down so long after the truck started that the check gauges lite would come on. I put the optimas in and they bounce back instantly and as soon as the truck is runing the voltage metter is where it belongs. They are getting to the point where they are no more expensive than normal batteries. I paid $99 each with a 3 year free replacment warenty.

duner
03-17-2004, 07:06 PM
put a regular battery and an optima battery on a shelf, both fully charged of course, let them set for a year, i'll bet the optima will still start a car and i'll bet the regular battery won't even click the starter solenoid. just my experience.

DarrellB
03-18-2004, 12:40 AM
Originally posted by AlpineRAM
BB [duhhh] don't be so cruel to Haulin [nonono].
I just wanted to say that IMHO you shouldn't use the dual terminal batteries wherre you don't need the other terminal. (More risk of shorting something, and more expensive than necessary)

AlpineRAM

The Optimas come with screw in plugs for the side terminals, no risk of shorting if you keep the plugs on the batteries. :cool: I like my dual Optimas, they have more cranking amps than the one they replaced and they look nice under the hood too. :p

DB

BigBlue
03-18-2004, 02:55 AM
Originally posted by AlpineRAM
BB [duhhh] don't be so cruel to Haulin [nonono].
I just wanted to say that IMHO you shouldn't use the dual terminal batteries wherre you don't need the other terminal. (More risk of shorting something, and more expensive than necessary)

AlpineRAM

It was a joke. I can't even begin to feel his pain for having all of that happen. I was just trying to get a little chuckle out of him. Sorry if it offended anyone.

Haulin_in_Dixie
03-18-2004, 12:06 PM
Originally posted by BigBlue
It was a joke. I can't even begin to feel his pain for having all of that happen. I was just trying to get a little chuckle out of him. Sorry if it offended anyone.

Missed this thread Blue, no offense. If it wasn't so much work and money it would be funny. Anyone want some of my luck :D

DarrellB
03-18-2004, 07:10 PM
Originally posted by Haulin_in_Dixie
Missed this thread Blue, no offense. If it wasn't so much work and money it would be funny. Anyone want some of my luck :D

No way! [laugh]

DB

Geico266
03-20-2004, 09:10 AM
I'm not so sure about only having only one battery in our trucks (in any area) and here is why. Even at 30-50 degrees the heating grids will cycle on and off until the motor is up to operating temperature. The fuel heater in the filter housing cycles off at 70 degrees F, and the lift pump is working hard. With all of this cycling the need for peak power (at idle) is tremendous and if the battery is "catching up" that means the power to all of these systems is lower than it would be if you have 2 batteries. Even the lift pump needs a constant peak power supply or you can weaken the motor (and the other systems) by not having enough power at idle. The result MAY be a shorter life span on these components.

Just a thought, I'm thinking way too much I know, but there are reasons the engineers put places for 2 batteries, and with 2 red tops you reduce the weight by 45 pounds. Just a comment.

[coffee]

Haulin_in_Dixie
03-20-2004, 11:08 AM
There is no way to hurt a resistor by low power and the lift pump is designed to operate at reduced power as in key on before start.

AlpineRAM
03-20-2004, 03:53 PM
In my truck the heaters won't cycle for long- I usually start it up and after max. one minute I'm going too fast for the grids to be activated.
I second what Hauling says about the way the heaters and LP are built.
Actually I have a the same voltage drop with my single optima as with the two stockers even when they were still good.

AlpineRAM