Bruce R

Yes, Colin Chapman, I've "added lightness"

Well my 47 lbs OE Moll battery died last week after about 5 years use, the last 20 months assisted with the help of a trickle charger.

I decided to go with a light weight Oddessey battery (PC925), 26 lbs, which because of it's smaller footprint requires the Rennline "cage".

About a $350 upgrade all together, about a $150 less if you consider the replacement cost of another regular battery.

Back of the envelop math suggest the 20 lbs saving cost $200.

PS consider how high these batteries are mounted.

PPS I kept the trickle charger plugged in during the swop and the car threw zero errors, including any radio presets, after a few minutes running.

RollingArt

That's a nice upgrade Bruce.

$10 a pound is a pretty good deal, no doubt.

I'll probably do the same when my battery dies.





Phil

kouzman

Very nice!

Battery change is one of best and stealthiest weight mods you can do.

In terms of warranty, can Porsche make an issue out of a battery change if the new battery specs do not follow the factory specs?

I want to get a lightweight battery eventually but I don't want to risk my warranty.

racer

Nice upgrade. Looks good.. but honestly, if I put back in your stock one would you really notice the 20lb? And how would you notice it?

Kuhan

Forget the weight, I'd buy that just because it looks cool and I'd get to play with tools on my car!

Edgy01

A bonus (so I understand) is that the service life of these batteries is substantially more than the conventional lead acid, or AGM.

alexb76

But how does it hold amperage compared to stock? Like how many days can you store your car without trickle charger vs. stock? or in colder climates?

Bruce R

Cheers!
My warranty expired in January.
Probably not, but as Kuhan said below, it looks cool & I know it's lighter.
Agreed!
No need for a trickle charger, but like all things there is nothing for free here, the word is things like leaving the radio on after turning off the ignition may be more limited now - no biggie.

sandwedge

The battery alone wouldn't be noticeable but if you add other items, look what it adds up to. Using my car as an example:

Sport bucket seats: - 50 lbs
Champion wheels: -30 lbs
Tubi exhaust: - 25 lbs

Total weight reduction: 105 lbs

Lopping off another 20 lbs with a battery brings it to 125 lbs. Not an insignificant number now.

997_rich

Or... as my ultra thin motorcycling friend is fond of telling me... "just skip that hamburger, chubby, losing the belly is a lot cheaper than carbon fiber"

pewter82

^^^^^^^^ What he said !
I'm 6'4" and 245lbs , it would take alot of removing stuff to get me to the average weight of you little
skinney guys in your car !

Alstoy

Bruce-First you become a movie star, then get cool wheels, and now this. I feel so stupid-I just replaced my OEM battery with a regular battery. If only I had known about this. This leaves me with two choices-either try to kill the battery off, or go on a diet & loose 20lbs. Nice work mate.

Tcc1999

Twenty pounds for $200 isn't bad. In the racing bike bicycle world the general standard is to pay about $2/gram for lighter/more aero parts. Comparatively, you paid $3.74/gm. But if you're looking for performance is taking weight from an already light part of the car a good idea? That's not sarcastic, really, I don't know.

KeninBlaine

Check your math.
One pound = 454 grams.
So $10/pound = 2 cents/gram
Message is: Porsches are cheaper than racing bikes based on weight

Bruce R

Hey I'm trying that too, doing a Half-Iron Triathlon next weekend

Thanks, it was fun fiddling under the hood.

Well Porsche offers the even lighter Li-fe on the RS and Spyder?
And I've previously thrown lighter AWE sport cats on the rear - tit for tat?