So I've been looking for a PC680 alternative since mine died. The current CCA on them is now 170 as opposed to the 220 I had. As of right now, the 7 sits in the driveway and isn't my daily. So I was hoping to find one that's the same size with higher CCA. The tray in the car is built to the size of the PC680 and I have the M2 Intercooler preventing me from getting a normal sized battery. After a few searches on here and the web, I haven't really decided on one. I've seen people using lithium batteries, but I'm unsure if they can stand the heat inside the engine bay of a 7 along top the high humidity of Virginia. Please point to a post if I somehow missed it in my searches and my apologies if it's already been discussed, but does anyone have any recommendations?

 

I would check out Deka battery ETX 14L. They weigh about 12lbs and mine has last over 12 months so far as long as you keep it on a trickle charger when not driven.

 

Thanks James2u! Looking at the picture, it looks like it doesn't use the same SAE terminals as my PC680. I'm looking at this one on Amazon:


Can the terminals I have on mine be used on this?

 

The Deka is what I believe Braille is actually supplying. When I bought the Braille I got the SAE post kit. I've bought a couple of Dekas since then and each time I had to re-use the post kit from Braille.

Not sure where to get the post kit separately. It's certainly not worth paying for a Braille just for that.

 

Do a search for Odyssey SAE terminals on Amazon. That is what I used with the Deka ETXL 14 battery.

 

I also use a Deka ETX14. I put it on a trickle charger everyday or else it'll die if I dont drive it for a week. I've had it for almost 2 years and still working good. I used sae battery posts like you can find all over EBay.

 

Thanks for all the help everyone! Is 220 CCA the highest in this size battery?

 

Beware the CCA comparisons - Braille for example rates with PCA and they seem to do it differently from anyone else (different temp perhaps?)

They should be about the same given the same type and size of battery.

 

I've been using one of these.
Powerful enough to start the car anytime and super light. Price is the only downside. You also need to get their charger for it.

 

I hadn't heard of that, that's interesting. So would the 170 be okay for the FD?

I've considered lithium batteries, but can the handle the heat of the FD's engine bay? One of my pigtails already burnt out in it.

 

I don't know the minimum cranking amps to run an FD. Naturally that's subjective because a fully charged battery and kind ambient temperatures are never a given.

I have been running a Deka EXT30L which is 400CCA. Until the electrical gremlins in my car eat it, this is plenty of battery to start the car even in freezing temps.

 

If you get it out of the engine bay and use a trickle charger, they all last better.

 

I honestly can't speak to the longevity in a FD because I haven't had mine that long. It's in the engine bay though and I wrapped it in DEI gold foil to help reflect heat away from the core.

 

It charges ok off the alternator though right? After putting one in my bike im never going back to lead acid. It wasn't that expensive. I already have a C-tek charger. Any decent (smart) charger should have a setting for lithium batteries. Chargers are cheap these days.
When my PC680 lets go - if it ever does - i will be going litium.
check out the one on the bottom left side of Floopy's Amazon ad. $99 and 300cca Edit, sctratch that. Too small. I think that is the same size, different brand in my bike. Its basically an empty plastic box with a tiny battery inside.

 

FloopyDisk

Thanks for all the help everyone! Is 220 CCA the highest in this size battery?

Not even close as others have pointed out above me.

I use a Shoria LiFePo battery in my FD in stock location (except lying down flat).

Haven't had problems.
I did leave my radiator fan on once (ac with interior fan on 1 with engine off to keep radiator fan on) to cool my car down after racing and let it run the battery down while I was distracted. Started my car with jumper box and still no problems with batter fully quick charging off the alternator (cringe).

Just under 5lbs and 550 Cold Cranking Amps.

I do usually pop my hood when I park the car to let the engine bay heat out, IDK how well it would survive in a daily driven situation in a hot climate where you have to park with the hood securely shut.

 

What model of that do you have? If it can stand a race I think it'll be okay for weekend warrior stuff here.

 

Well, my "races" are just 4-5min sprints around a kart track at longest.

I just grabbed the biggest Shorai with the terminals on the correct sides.

 

https://www.braillebattery.com/index...atteries/b3121

Here's a startup video of my 20b with ungraded rx8 starter.