What kind of battery are you all running?

[Vettel-ish]

Mine is due for a replacement.

Is there a "high performance" version? I have a little Bosch right now.

My car is a 2011 GT.

 

[PatientZero]

I've always had great luck with Optima YELLOW-tops. I wouldn't use a RED-top if you gave it to me.

There are also several lightweight batteries available. I think Braille and Anitgravity are probably the most popular.

 

[Vettel-ish]

Thoughts?

 

[Sjohnson1800]

I just use a Napa gold and haven’t had any issues had it for a couple of years. Just put a battery tender on it in the winter and she’s been pretty solid!

 

[302BOB]

I don't race so weight isn't an issue..........I Just got a Diehard for the truck.

 

[scsponger31]

Ive been using these for the past 4-5 years. If you dont drive the car at least once a week, you need to keep it on the tender:

https://www.amazon.com/ODYSSEY-PC680-Odyssey-Battery/dp/B0002ILK6I/ref=sr_1_2?crid=2AFXK8OINGTZ3&keywords=odyssey+battery&qid=1673974105&sprefix=odysee%2Caps%2C138&sr=8-2&ufe=app_do%3Aamzn1.fos.f5122f16-c3e8-4386-bf32-63e904010ad0

 

[TMSBOSS]

Antigravity OEM ATX20.

 

[trackdao]

I've always had great luck with Optima YELLOW-tops. I wouldn't use a RED-top if you gave it to me.

There are also several lightweight batteries available. I think Braille and Anitgravity are probably the most popular.

Why not the Red-tops? Those have been used extensively, at least in other cars I'm familiar with.

 

[trackdao]

Any of you running this, reliable, longevity on track?

 

[TMSBOSS]

I am using the same battery but built my own mount. I used flat aluminum for the base, aluminum rods drilled and threaded at each end to bridge the gap from inner fender to bottom of mount. 3/4" thin aluminum angle to secure the battery base. I lined the battery cradle with silicone sheeting. Threaded rod and aluminum tubing and 1/2" x 1" stock for the hold down. On the firewall side I made a piece to hold a 6 fuse panel for add on accessories. Cooler pump circuit, water pump relay and 75A master relay I can switch all from center console. I mounted relays to the battery mount base. Ill add some pics tonight.

 

[EF1]

I was using an Antigravity YTX12-24 in a Morris Engineering amount. The whole set up weighs about 5 lbs but I went back to the factory tray and a Napa battery. The Antigravity batteries are pretty expensive and I was replacing them every 12-18 months. The lithium cells would start swelling. I believe the charging system in the Mustang is not friendly to the lithium batteries. I believe it charges too fast or too much. I am not racing and weight isn't that big of an issue. I liked the compare size since I was able to work on that side of the engine bay without having to remove the battery and tray.

 

[JDee]

I had the same experience with a Braille battery, it didn't swell or anything like that but it was completely unreliable, never knew if it would crank the motor or not. Saving a few pounds is just not worth the hassle if you're not racing.
It does however make a decent dead weight to use for compressing film plastic for recycling.

 

[trackdao]

Good feedbacks, think I'll defer this cost to other upgrades. Not worth the hassles.

 

[DaveW]

I have the Antigravity one that is the correct group size. Even with the re-start technology thing, they apparently don/t like sitting all winter without being on a trickle charger, at least that is what they told my when the original one failed last winter. They warrantied it with no hassle though.

DaveW

 

[Stan Whitney]

I've used the odyssey pc925 in a couple of cars now with larger electrical drains. Its a decent compromise, about 25lbs, with almost normal battery crank and reserve power. Much less finicky than lithium , and can take deep discharges and come back with a recharge. Current one in the autox car is at about 5yrs old.

Edit - these are very popular with the sxs crowd, so lots of nice mounts are available for them.

 

[JP X]

I was using an Antigravity YTX12-24 in a Morris Engineering amount. The whole set up weighs about 5 lbs but I went back to the factory tray and a Napa battery. The Antigravity batteries are pretty expensive and I was replacing them every 12-18 months. The lithium cells would start swelling. I believe the charging system in the Mustang is not friendly to the lithium batteries. I believe it charges too fast or too much. I am not racing and weight isn't that big of an issue. I liked the compare size since I was able to work on that side of the engine bay without having to remove the battery and tray.

I had the Antigravity H5 and pulled it out after the voltage went haywire and I got repeated “Shutdown Imminent” messages. Very glad I did after seeing the post by @Fabman. I now use a Wal-Mart battery. They are made by Johnson Controls, who also (among others) makes the batteries at Autozone. For $100, I’ve been using it for 2 years without a problem.

 

[trackdao]

Johnson Control batteries are generally reliable over 2-3 years, can't go wrong, except for the weight issue. Haven't used Optimas, they are everywhere at speed shops. Thoughts??

 

[JP X]

Johnson Control batteries are generally reliable over 2-3 years, can't go wrong, except for the weight issue. Haven't used Optimas, they are everywhere at speed shops. Thoughts??

The Optima battery is one of the best you can buy, IMO. But I did have one die after about 30 months in the wife's minivan. Of course the parasitic losses (what with electric doors, kids, and all) are big.
In my day job, I sell a lot of batteries into the datacenter market. Like a lot. I''ve worked with NiCad, AGM, flooded, Lithium, etc. There's always some trade off. You can pay double and have it last twice as long but in the end the $$$ is the same. At that point it is about convenience. I just wish the H5 worked for me. Dropping 23 lbs with 5 minutes of work was attractive.

 

[Sjohnson1800]

I do believe that optima’s are owned and manufactured by johnson controls

 

[67GTA]

I do believe that optima’s are owned and manufactured by johnson controls

That’s correct - although Clarios is the name of the company now. Most batteries in the US are either Clarios or East Penn (Deka) regardless of the label.