Hi all -

I'm noticing my Evo X GSR is starting to have some difficulty starting up after sitting for a few days and with winter coming soon, I'm leaning towards buying a new battery; its served me well for 5.5 years. I had it tested recently and it came back with poor test results.

I have done a good amount of searching and I'm aware that the stock Panasonic battery has a ventilation component since the battery resides in the car. From what I read, there is a specific Optima Red battery for our car that dealers were replacing the Panasonic with but after all the threads I've looked through I was not able to pinpoint the exact part number I would need.

With that said, does anyone know what Optima Red top model that should be used with our cars or something else that is a stock equivalent? I would consider a battery like an Odyssey PC680 for the weight savings but from what I read, it might not be as reliable as a "conventional" battery, especially in the Northeast where we get in the subzero temperatures sometimes. Thanks.

 

The Mitsu part # for the Optima battery that is specific to the Evo X is ALE08FB1X01. It will cost you around $300 from a dealership.

That said, there is an Optima model you can buy outside a dealership. I believe it is 8020-164 35, such as this one. No clue as to the differences (if any) between the two.

 

Thanks. $300 is insane. I saw that Optima Red on Amazon but after reading some of these posts about our batteries needing a proper ventilation setup, I would just want to make sure that this battery addresses this. Does anyone know?

 

The Group 35 Red top should be a direct fit. It's completely sealed so no worries about ventilation.

 

I'm assuming this is the Group 35 based off the description of it -https://www.amazon.com/Optima-Batteries-8020-164-Starting-Battery/dp/B000MS9VZK?tag=viglink21384-20?

 

Yup, that's the one. The D35 is the yellow-top. I've had a couple of bad Red top experiences in other cars in the last few years since they moved manufacturing to Mexico but no Yellow Top failures.....
Just never let a gel-cell battery go completely flat. They often don't come back.

 

Thanks guys.

 

I live in northern ca, I replaced my battery a few years ago with one from autozone it was like 150ish it has given me no issues and it doesn't have the vent tube thing like the OEM battery which it replaced.

 

Replaced my stock Panasonic about 3 months ago with a Optima red top group 35 from Pep Boys. Been starting fine even after sitting for a few days in the colder New England weather. I'm happy with it.

 

Hopefully the replacement is an AGM or other sealed battery. If it's a lead-acid battery there's hydrogen coming out of it and you could end up with a really nasty surprise!

 

deciding between "Odyssey Battery 35-PC1400T Group Size 35 850 CCA" or "Optima Red Top Battery, Group Size 35, 720 CCA" to replace the stock pansonic ... I can not find any details as if any of these are "ventilated" as recommended... anyone have past experience with ether?

DD to a 2011 Evo X GSR

 

I just bought an AGM group 35 battery from Advance. Order online and you get like 20% off. It was vented and has a 3 year warranty.

I went this route after the Optima battery has been replaced a few times already.

 

I went with the Optima Red Top a couple of years ago. I’ve had zero issues with it.

 

Still rocking the stock Panasonic. 2013 to now 2020.

 

Same
2011-2020

I have an Odyssey 680 In the RA thought. Its been good. its small and light. Its never left me stranded.