anybody try something like this?

http://shop.antigravitybatteries.com...ries-ytx12-20/

 

that is even better at 600 CCA, more expensive tho but nice colour in black,

thinking the Oddyssey PC 680 is only 170 CCA

 

Just joined the club. Wow is it lightweight and SMALL.

Made a simple metal bracket that ties into the current battery holder tie down bolt. All cables remain stock, so I can put a big boy back in there if this doesn't workout.

The current terminal posts are too short and a bit narrow, so I'm going to add some terminal shims to get better contact.
Starts maybe a half second slower than before.







A new test begins. Cold temps coming...

 

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

These terminal posts worked great for me (No affiliation). I like your custom bracket! I may have to copy that

 

^^^^^^^^^
Since it worked for you, I'll go with your suggestion. Thanks!

Was also looking at this option from Braille:
https://www.google.com/shopping/prod...3tCw0Q4SsICCgA

 

Odessey 680 for me
Used one for years without any problems
Li is appealing but cost and potential charging issues have stopped me changing from something that works without any problems

 

which model Battery Tender did you get?

 

Go for the Earthx ETX24C. Has internal battery management which is HUGE. I just picked one up over thanksgiving. Does three cold starts back to back with no issues. Weighs 2.9lb and has worked flawlessly down to 40f

If you have questions, can PM me.

 

It started like a champ this morning!


Battery Tender 12V, 480 LCA Lithium
http://products.batterytender.com/Ba...t-Battery.html

Features:
Voltage: 12V
Lithium Cranking Amps: 480
Lead-Acid Replacement Range: 26-35(Ah)
Case Dimensions: 6.49” (165mm) length x 3.38” (86mm) width x 5.11” (130mm) height
Operating Temp: 40 - 140°(F)
Weight: 3.75 lbs
Warranty: 3 Years - Limited*
Max Charge Rate: 10A
Agency Approvals: CE, UN 38.3
• 18 month Shelf Life
• Up to 80% lighter than Lead Acid Equivalent
• 5X the Life of a Lead Acid Battery
• Quad Terminal Configuration for ease of installation
• 2000+ Cycles at 80% Depth of Discharge
• Can be mounted in any direction
• Lithium Batteries do not sulphate

 

Absolutely Love the weight savings on offer here, but have to ask, how does it affect the handling of the car?

 

Had to go for it. $200, and 30 lbs less. (Weighed battery this weekend).

I come from the cycling world, not a weight weinie, but I don't keep anything extra in the car...

Yes the weight savings is in the nose, but the car was recently corner balanced, so it's pretty dialed in for North Carolina back roads.

 

Lifepo4 with 3080g weight

 

have you guys heard of voltphreaks? http://www.voltphreaks.com/

i'll likely run one in my e92 m3 when i need a new battery.

 

Love these, I have one. Mine is the VPH900 weighs only 7.5 pounds.