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Old 03-05-2010, 01:38 PM   #1 (permalink)
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Mounting for Delco 26R Battery

It was time to replace my battery and didn't need to go light weight, just reliable. I looked at the Delco 26R (from the Battery Options list) and the AutoCraft 26R but neither have much of a lip for the mount to grab on to (like the Black EOM battery did.)

What are others doing?

Thanks,
Todd
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Old 03-05-2010, 02:03 PM   #2 (permalink)
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I've recently replaced the OEM Exide battery with an Optima "Red Top" 75/25. The car's mount seems to securely hold the new battery in place -- This is in spite of a smoother and shorter lip. As a side note, the only caveat is that I couldn't re-install the battery cover without modification. Therefore the battery is currently exposed and the cover has been sitting in our storage. Just my 2 cents.
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Old 03-05-2010, 02:22 PM   #3 (permalink)
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Quote:
Originally Posted by Guld View Post
I've recently replaced the OEM Exide battery with an Optima "Red Top" 75/25. The car's mount seems to securely hold the new battery in place. This is in spite of the of the smooth and shorter lip. The only caveat is that I couldn't re-install the battery cover without modification. Therefore the battery is currently exposed and the cover has been sitting in our storage. Just my 2 cents.
If you want to use the original battery cover with the Optima, it is very easy to do with a simple modification to the cover. The top of the Optima battery is slightly longer than the OEM cover so take a heat gun to the side of the cover opposite the tool pouch holder (the side of the cover facing the engine) and heat it carefully below the top of the cover but don't heat the part of the cover that forms the pocket to hold the owner's manual. You don't need to apply very much heat and be sure to move the gun around a lot to spread out the heated area. Test the heated side of the cover with your finger to make sure it has softened and if it has, just slide the cover over the battery and hold it in place until the cover has cooled. You now have a custom fit battery cover for your Optima.
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Old 03-05-2010, 02:22 PM   #4 (permalink)
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I have the same Optima and installed the cover although it required a little more effort. A tip is to cut down the rear right tab. Never leave your battery without the cover on or at least have the positive terminals insulated. In addition I installed some industrial Velcro under the battery.
Michael
Quote:
Originally Posted by Guld View Post
I've recently replaced the OEM Exide battery with an Optima "Red Top" 75/25. The car's mount seems to securely hold the new battery in place -- This is in spite of a smoother and shorter lip. As a side note, the only caveat is that I couldn't re-install the battery cover without modification. Therefore the battery is currently exposed and the cover has been sitting in our storage. Just my 2 cents.

When replacing the OEM battery it is VERY highly recommended to used an AGM battery which can't leak.
See http://www.lotustalk.com/forums/f129...rmation-64071/
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Originally Posted by tpearsall View Post
It was time to replace my battery and didn't need to go light weight, just reliable. I looked at the Delco 26R (from the Battery Options list) and the AutoCraft 26R but neither have much of a lip for the mount to grab on to (like the Black EOM battery did.)
What are others doing?
Thanks,
Todd
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Old 03-05-2010, 04:33 PM   #5 (permalink)
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Thanks for the tips Viper and tsprit. I've looking for a solution to that problem. Thankfully I've not driven the car too much since the battery change.

Following up on you suggestion, do you know why we need one in the first place (considering it sits in a non-conductive fiberglass shell)? I'm just curious.

PS: tpearsall I didn't mean to hijack your thread.
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Old 03-05-2010, 05:52 PM   #6 (permalink)
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Because, as it sits in the trunk, metallic contents can come into contact with the battery terminals causing a fire.
Michael
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Originally Posted by Guld View Post
Thanks for the tips Viper and tsprit. I've looking for a solution to that problem. Thankfully I've not driven the car too much since the battery change.

Following up on you suggestion, do you know why we need one in the first place (considering it sits in a non-conductive fiberglass shell)? I'm just curious.

PS: tpearsall I didn't mean to hijack your thread.

Last edited by SirLotus; 03-05-2010 at 07:18 PM.
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Old 03-05-2010, 07:57 PM   #7 (permalink)
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PS: tpearsall I didn't mean to hijack your thread.
No worries.

I bought the red top 25/75 and the stock mount in my '05 doesn't seem to hold it very well. I'm thinking about bending the bracket so it clamps the battery down better. In past reading I thought there was a mod to hold the stock battery better, but haven't been able to find it.

Thanks,
Todd
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Old 03-05-2010, 08:11 PM   #8 (permalink)
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Don't bend the front clamp. Try adjusting the bracket behind the battery to a lower position. After you have done this and put the battery back in place, bolt down the front clamp and you will notice it will be much tighter. You can actually adjust the back bracket down too far and make the front clamp is too tight so you may have to adjust the back bracket up or down a couple of times to get it right, but this will make the front clamp work properly.
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Old 03-06-2010, 09:14 AM   #9 (permalink)
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I too just replaced the OEM black battery with the Optima "Red Top" 75/25. As Michael stated in his post, I took a sharp razor knife and trimmed the battery case off on the side facing the engine and then reset the battery case over the new Optima. The mounting bracket seemed to hold it just fine on the bottom of the battery. Now no vapors will be inside the rear clam area... and no leaking battery acid either.
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Old 03-08-2010, 06:36 AM   #10 (permalink)
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Quote:
Originally Posted by tesprit View Post
Don't bend the front clamp. Try adjusting the bracket behind the battery to a lower position. After you have done this and put the battery back in place, bolt down the front clamp and you will notice it will be much tighter. You can actually adjust the back bracket down too far and make the front clamp is too tight so you may have to adjust the back bracket up or down a couple of times to get it right, but this will make the front clamp work properly.
Thanks, I fiddled with the adjustments you mentioned and it seems snug now. I'll just keep an eye on it for awhile after spirited drives and autoX.

Thanks again,
Todd
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Old 03-08-2010, 06:41 AM   #11 (permalink)
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You can go to Walmart, autozone, or pretty much any autoparts store and get a model 26 or 26 r battery. The only difference between the 26r and 26 are that the poles are reversed,and the wires to reach.

It is a heavy battery, but its nice to have the reserve power for street use.
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Old 03-08-2010, 06:46 AM   #12 (permalink)
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The issue I had was the ACDelco and AutoCraft batteries had no "lip" for the back bracket to catch on the way the OEM battery does.

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You can go to Walmart, autozone, or pretty much any autoparts store and get a model 26 or 26 r battery. The only difference between the 26r and 26 are that the poles are reversed,and the wires to reach.

It is a heavy battery, but its nice to have the reserve power for street use.
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Old 03-09-2010, 02:38 AM   #13 (permalink)
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If you track the car the OEM battery mount is NOT SAFE! I had my battery break loose in a corner and it flipped around the boot a couple of times significantly damaging the fiberglass and the rear tail light.

Had Sports & Specialist Cars (Lotus Dealer) make me a custom battery hold down. Now there is no way the battery can move.
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Old 03-09-2010, 04:28 AM   #14 (permalink)
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If you track the car the OEM battery mount is NOT SAFE! I had my battery break loose in a corner and it flipped around the boot a couple of times significantly damaging the fiberglass and the rear tail light.

Had Sports & Specialist Cars (Lotus Dealer) make me a custom battery hold down. Now there is no way the battery can move.
Do you have any pics? I'd love a more secure option that works with a full size battery. Surprised BWR or S111 hasn't put something out, only micro battery options seem to exist.

Thanks,
Todd
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Old 03-09-2010, 08:54 AM   #15 (permalink)
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The standard battery mount allows the battery to slide rearward if is not tight. Velcro is a poor attempt at correcting this. I welded a "hockey stick" shaped rod to the standard bracket that hooks around the rear of the battery. Many auto-x's with no issues.
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Old 03-09-2010, 09:51 AM   #16 (permalink)
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Industrial Velcro is not an attempt to correct the problem, only to add a little more reinforcement.
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The standard battery mount allows the battery to slide rearward if is not tight. Velcro is a poor attempt at correcting this. I welded a "hockey stick" shaped rod to the standard bracket that hooks around the rear of the battery. Many auto-x's with no issues.
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Old 03-26-2010, 08:18 PM   #17 (permalink)
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Any pictures? I'm putting a stock battery back in to replace my lightweight battery, and I don't feel to good about how it grips.
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Old 03-28-2010, 04:48 PM   #18 (permalink)
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I just replaced the stock battery with a Bosch 26R from Pep Boys.
The lip was just like the original and everything went back on as planned.

The cover also fit with no problem. I think this battery is a little shorter
than some of the other 26R's out there.

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Old 03-18-2011, 02:17 PM   #19 (permalink)
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battery@#$&@#

It was time to replace the battery on my 05 Elise. I consulted the owner's manual and stopped in at a parts/garage store who sold Delco batterys.

I showed him the manual and he said he could have a

Delco 19001598 26R-6YR

battery delivered in an hour. Great service!

When I showed up with my old battery and compared it with the one ordered from the owner's manual, they were not the same! The one specified in the owner's manual was taller, had covers on top to pop off in order to keep the cells full, and had different tabs on the bottom for clamping down. All I wanted was a simple replacement of the same battery, no muss, no fuss.

How do I order a battery like the one in the car? What the #%@$%& is it? There is no excuse for stuff like this.
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Old 03-18-2011, 03:28 PM   #20 (permalink)
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A 26R battery should fit easily, however it is much better to replace with a AGM battery that can't leak and does not emit hydrogen gas,.
Michael
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