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> optima battery
wackii
post Sep 18 2018, 02:08 PM
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does anyone know the correct optima battery for 73 2.0 914 thanks Wac
or does anyone know if the odyssey pc1200 fit?
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mepstein
post Sep 18 2018, 03:11 PM
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34 or 34-R. Can't remember which.
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VaccaRabite
post Sep 18 2018, 05:41 PM
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Don’t buy an Optima. They suck these days.
If you want a gel cell batter get an Odessey battery. Stay away from the Red Top.
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wackii
post Sep 18 2018, 05:46 PM
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QUOTE(VaccaRabite @ Sep 18 2018, 04:41 PM) *

Don’t buy an Optima. They suck these days.
If you want a gel cell batter get an Odessey battery. Stay away from the Red Top.


I've been checking Oyyessey pc680,925, or1200 do you know which one fits best thanks
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don-6
post Sep 18 2018, 05:47 PM
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I use the Red Top 35.
I got twelve years out of the last one. Installed in 2006, and just replaced this past weekend.

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tomeric914
post Sep 18 2018, 05:55 PM
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Group 35 is what I used, probably because they didn't offer a 34R 10 years ago or possibly because the 34 was just a tad too long to fit the battery tray. Edit: just checked, the 42 size battery is 9-1/2" long. That's why I went with the 35.

WOW those are expensive today. I paid $140 back in 2008 for my Optima.

If you get a red top Optima, be sure to get a Battery Tender specific for AGM batteries to keep it charged if you don't drive it every day.
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wackii
post Sep 18 2018, 06:02 PM
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QUOTE(don-6 @ Sep 18 2018, 04:47 PM) *

I use the Red Top 35.
I got twelve years out of the last one. Installed in 2006, and just replaced this past weekend.

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does it fit without any mods thanks Wac
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don-6
post Sep 18 2018, 06:12 PM
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No mods required.
In the picture you can see the battery hold down bracket.
The 35 has plenty of cranking amps to turn over my 3.2 engine.
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somd914
post Sep 18 2018, 06:37 PM
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QUOTE(wackii @ Sep 18 2018, 07:46 PM) *

QUOTE(VaccaRabite @ Sep 18 2018, 04:41 PM) *

Don’t buy an Optima. They suck these days.
If you want a gel cell batter get an Odessey battery. Stay away from the Red Top.


I've been checking Oyyessey pc680,925, or1200 do you know which one fits best thanks


Concur with VaccaRabite. Though they won't fit as per factory but not difficult to fashion a bracket or chose from an assortment of brackets out there. If you shop around you'll find they are less expensive than Optimas, weigh much less, and last longer. Amazon Prime member? They have the best deal I've seen lately and free shipping with Prime.

BTW I run a 925 in the 911 and moving the 914 to the same.
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pete000
post Sep 18 2018, 06:53 PM
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Been using the Optima red top 35 in both my 914s for years. I also use the Optima battery charger conditioner. As long as you keep them charged they work fine. If you run them down it usually takes the Optima charger to bring them back. Lots of discussions on this on the internet...
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Ansbacher
post Sep 18 2018, 07:19 PM
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Mount it sideways and you will NEVER have a clearance problem closing the engine lid.

Ansbacher

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petza914
post Sep 18 2018, 11:00 PM
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QUOTE(Ansbacher @ Sep 18 2018, 05:19 PM) *

Mount it sideways and you will NEVER have a clearance problem closing the engine lid.

Ansbacher

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If the positive terminal is as close to the metal battery pan as the negative one shown, that's not a good setup (can't see under the white cover). Also, how is the battery secured in that fashion to not slide back and forth in the pan?

As far as Optima longevity, I have one in each of my 997s, in my 928, in my 914, and in my DD pickup. The one in my 914 has been in there since 2000, yup, 18 years. Granted it isn't driven all that often and is always connected to a Battery Tender charger/maintainer, but that's still a remarkably long time for any battery. The one in my silver 997 has been in there since 2013, as has the one in the pink 997, and the one in my truck even longer. Even run the Blue Tops in the boat.

For the Cayenne, because it takes a much larger battery, I went with a Napa Gold AGM. I'll never buy another lead acid battery again.

Here's the setup in the 914

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euro911
post Sep 19 2018, 12:43 AM
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I am also a fan of the Odyssey PC925. Bought one for the 'BB' (2056 w/ 9.5:1 C/R) back in 2012. It's a little smaller than a 'normal' size 914 battery, so you'll need to fab a bracket to secure it (easy task).

I took the car off the road mid-2015 and the battery sat on a shelf for 3 years. In mid-2018, I charged it up with a 1.25 amp Battery Tender for a few days and reinstalled it in the car. It cranked over the motor just fine.

If you buy a PC925, don't forget to order the SAE terminal kit so your OEM battery terminal clamps will still work.
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michael7810
post Sep 19 2018, 05:33 AM
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This is the Odyssey I installed using PMS’s adapter bracket
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Bartlett 914
post Sep 19 2018, 07:22 AM
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QUOTE(tomeric914 @ Sep 18 2018, 06:55 PM) *


If you get a red top Optima, be sure to get a Battery Tender specific for AGM batteries to keep it charged if you don't drive it every day.

(IMG:style_emoticons/default/agree.gif)
These really don't like deep discharging
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mepstein
post Sep 19 2018, 07:34 AM
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QUOTE(Bartlett 914 @ Sep 19 2018, 09:22 AM) *

QUOTE(tomeric914 @ Sep 18 2018, 06:55 PM) *


If you get a red top Optima, be sure to get a Battery Tender specific for AGM batteries to keep it charged if you don't drive it every day.

(IMG:style_emoticons/default/agree.gif)
These really don't like deep discharging

Or fast charging. That will kill them quickly.
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wackii
post Sep 22 2018, 06:46 PM
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QUOTE(don-6 @ Sep 18 2018, 05:12 PM) *

No mods required.
In the picture you can see the battery hold down bracket.
The 35 has plenty of cranking amps to turn over my 3.2 engine.

Thanks to everyone who helped me out. I went with the optima 35, mostly for convenience and I got $50 off by purchasing online from advanced auto.Fit perfect lots of cranking power (now I only have to keep it alive)!


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mepstein
post Sep 22 2018, 07:55 PM
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I use a battery tender junior. $25 and works great with the optima. Mine is going on 7 years.
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petza914
post Sep 22 2018, 08:07 PM
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Wouldn't you know it... the Optima in my 914 crapped out today. Totally normal on the first 2 starts then exhibit failed battery characteristics on the 3rd one - low voltage (9.5), no juice, blinking radio lights, etc. Used jumper cables to start it and drive home - alternator showing fine voltage - tried to restart it once I pulled into the garage, and nothing.

I was also wrong about the date as I could see the label once I removed the battery. It didn't last 17 years. Was installed 09/2005 so only made it 13 years. I ordered a Yellow top version tonight, which didn't exist last time I bought one, and will replace it tomorrow.
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ClayPerrine
post Sep 23 2018, 10:05 AM
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We have run Optima batteries in every one of our vehicles for years. Betty's car had an Orange top one, which was just the red top with the posts reversed. It lasted 16 years. When it died, I went to buy another one. They stopped making them. The guy told me "just put the red top in backward". He didn't get that it wouldn't match the paint on the car.

Funny thing is, everything I own uses the exact same battery now. And I wouldn't buy anything else.
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