Prices are up $100 since earlier this year, wonder if there will be a holiday sale.

 

At 27 lbs, not sure it is worth the cost. I was thinking about 40lbs,

You are not going to feel 27lbs difference. That is like 4 gallons of gas.

 

Incremental, yes, but when 27 Lbs is added to the weight savings of 4 forged wheels and an Inconel exhaust, now you're starting to see some worthwhile weight savings. Porsche charges a hell of a lot more for their attempt at "light-weighting."

 

Yeah, I suppose.

I am looking forward to losing the unsprung weight from the APEX wheels. They are going on Wednesday.

 

Not sure it's worth throwing away completely good batteries as some do; but when it's time to change seems like a reasonable upgrade

 

Yes, definitely agree. If it was a solid 40 lbs, I might go for it, but at 27 lbs, I will wait until I need to replace.

It's definitely a no brainer when one needs to replace for sure.

 

I used the 30Ah AG battery without issue on my 981 GT4 and 718 GT4. It was maybe 12lbs, a lot less than stock battery, totally worth it for the weight reduction since I was competing in TT.
Zero issues in the 981 but that had radio delete, minimal electronics.
When I first put it in the 718 there was a random check engine light but after driving for a while went away. Even after storage for 5 months, no issues.
But I seem to do weird non-standard things with cars, like 275 width fronts and 315 rear.
My car is gone now, but still have the battery if anyone is looking for one. Seems like they don't sell the 30Ah one anymore.

 

Exactly my plan. Gives a good excuse to upgrade at that time.

Plus, I'm sure the tech in these will improve by the time I need it.

 

I have an Antigravity 40Ah in my GT4 RS and a Porsche OEM Li-ion 60Ah battery (Made in the Czech Rep) in my new 992T. Does anyone know the weight of the Porsche Li-ion battery ?

 

Are these batteries fine with track use? Or are there issues with the alternator and excessive charge or something weird.

Also, I'm guessing you can put them on a battery tender like usual as long as it's a lithium one?

 

The app allows you to monitor many parameters that you'd otherwise, not see.

I've been running Antigravity 40-amp in GT3s, GT3RS and GT4RS. No issues for me during track days or long weekend mountain blasts.

Specific battery tender, yes.

 

Keep an eye out for your emails from Rennlist

 

It all adds up when you are on a comprehensive lightening program. The battery is significant to me when added to taking frunk stuff out for free. (27+8+6 = 41lbs) There is your forty pounds.

27 lbs for AG Battery
8 lbs for (carpet matts, left and right frunk pods, and air pump)
6 lbs for unnecessary wiper fluid (I have never hit that button)
32 lbs for Kline Inconel exhaust (in the plan)
47 lbs for ST carbon brake rotors (in the plan)
6 lbs for Apex 20 inch rims (in the plan)
5 lbs fire extinguisher
131 lbs total

So my 3156 lbs car would weigh 3,025 lbs after all of the above modifications are done. If I were going to COTA for the weekend or another special event, I could take the passenger seat out and lose another 38 lbs temporarily and the car would drop below the magic 3k at 2987 lbs. Finally, you could do Magnesium wheels and lose another 15 pounds, but that is not worth $12K for me personally.

 

More than that for the APEX wheels. Rears are 4.2 lbs less per side, fronts are 3.2 lbs less per side for the 20's for a total of ~ 15 lbs, all unsprung weight

 

for which holiday? ;p interested in a 60ah i guess...