PD2FLY

Bought an Odyssey PC1200T for our Malibu ski boat to check them out. Boat is hard on battries. Short run times, lots of starts, add a 12v cable drive boat lift and you put a battery through the wringer in short order. Seven year shelve life, so no need to tricke charge during winter storage. In my case thats down to -30F, three years with no issues. I just pull a terminal and leave the battery in.I love this battery. When the P-Car needs one its going to be a no brainer. No relation. http://www.odysseybatteries.com/

depo993

I have to replace the battery in my '96 993, besides the radio codes, are there any other codes or electronic settings that have to be reset after the new battery is installed and the car started?

IXLR8

I replaced my battery last April with an East Penn 648MF which other than the case color, is 100% identical to the Moll Kamina Porsche battery that I removed. It is a flooded lead acid battery, just as those supplied in the vehicle.

I chose to go with that battery over an AGM type battery available from East Penn for various reasons. I get more life out of flooded lead acid batteries because I can maintain them and they are less susceptible to issues due to charging variances.

AGM batteries have their advantages; unfortunately none of which are that important to me. I hardly need a higher CCA specification unless I plan to use my car in sub zero temperatures. Unfortunately AGM batteries cannot be maintained and if they are being used in hot climates, chances are that they will be overcharged by your vehicle's charging system and when that happens, they gas...once they do that, water cannot be added to them.

List of 993 batteries.

PiB993

I have a 97' Turbo and this is my question too.

ECS Tuning

There shouldn't be any electronic codes that have to be set after the new battery is installed.

fullbooker

After bad experience with an Odyssey, I love my Interstate conventional battery.
Phil

993RUF

Just the radio codes.

Edward

Warning: the following is all IMHO.
But along with "IMHO" also comes with my actual experience. ...FWIW.

Optima batteries are hyped batteries that simply are not worth their price.

So over my two Optimas that I was duped into having (because of glowing reviews yadayada), I have come to the above conclusion without joy or satisfaction. Only through the annoyance that the higher price I paid got me no better performance and no better longevity. Even worse, one of the two Optimas lasted scarcely over (or was it just under) two years.

By comparison, every other car battery I've owned has been at minimum equal to, and mor often exceeding in, longevity than these over-priced lead weights. And I mean every battery. From cheapie no-brands, to DieHards, to Costco, to Interstates. And this over many cars I've owned personally as well as extended family's cars (of which I wrench regularly), and over decades. And yes, all were regular drivers so can't speak for garage queens which may benefit from a deep-cycle battery.

OK, so my "test sample" is admittedly miniscule. But you do the math: you buy two expensive batteries that fail to deliver what they promise. Then compare that to 100% of every other battery you've ever owned/installed that has done same or better at a fraction of the cost. There's my actual experience.

Just thought I'd offer my thoughts ...after all, the OP did ask for opinions

Edward

JPS

I've heard mixed on the Opt RT, but I've had 2 or 3 now and had good experiences. I did have from the previous battery leak both in the trunk and out the vent tube, trashing a wheel and clear bra on the rear wheel well front piece, and the front wheel well rear piece. Yack. Sticking with sealed.

IXLR8

Yeah, I always have to chuckle about those "glowing reviews" on forums and on the internet. I often wonder what those "glowing reviews" were based on.

On another note, my original OEM Panasonic flooded lead acid aka conventional battery in my car will have completed 13 full years and will be starting into its 14th year in another month and three days. And that is over a temperature range far wider than most of us see. Now that is a glowing review (I load tested it ). The Panasonic battery in the previous car lasted at least 18 years. Damn, Panasonic knows how to make car batteries...too bad they only come in new cars.