Autozone Duralast Gold: 94R-DLG
 

I have a 2003 Boxter S. The Porsche OEM battery (manufactured in 2007) finally stopped working. I went to AutoZone and replaced it with their "Duralast Gold 94R-DLG" at a cost of $145.

This battery was a perfect fit. It appeared to match the exact dimensions of my Porsche OEM battery. My Porsche's original vent tube also fit perfectly into the battery's vent hole. I was amazed how easy it was to remove the old battery and install this one. There was nothing extra I needed to do except reset my clock (the radio did not require a reset).

AutoZone's "Duralast Gold 94R-DLG" comes with a 36-month free replacement warranty.

For those of you who live in a cold climate and/or who prefer the high cold cranking amps of a full-size battery, you may want to seriously consider purchasing AutoZone's "Duralast Gold 94R-DLG".

I just bought one from WalMart for around $70. Has the vent, fits perfectly. Works great.

Old post, I know, but I didn't see an answer. Does anyone know if the adaptor plate supplied by Optima works in a 1st gen Boxster?

Interestingly, the price I was quoted for an Optima was quite a bit less than an Interstate.

Yellow Dog Motorsports, they have a web site: www.yellowdogmotorsports.com/details.php?id=93

What would we do without Mikefocke?

http://sites.google.com/site/mikefocke2/batteries

Optima's should be charged at 15v, most alternators do not put this voltage out without a modification.

I am looking at running a custom lithium pack that weighs 2kg's (4.4lb for my American friends!) which should do the trick nicely ;)

Sam

This is first I've seen in my research that the Optimas may be a problem in the Boxster. Those in the know please chime in.

They need 15v to charge effectively, most alternators will not produce this without changing the diode.

They will still work without 15v from the alternator, but a fair way below the quoted stats of the unit.

Sam

"Vehicles like jeeps with a wench on the front used for mudding would also benifit from the Yellow top."

My wench usually sits in the passenger seat!

Optima's preferred charge rates (time to reach full charge from a given level of discharge) is 14.4 volts at temps above 41 F, and 14.7V below 41F. The are not a problem on any decently performing charging system; we have never encountered a problem with Porsche's keeping them fully charged. Some maintainers (such as Ctek) have an Optima "optimized" charge cycle, but all that does is get the battery to a full charge quicker. In reality, just about any decent maintainer will keep the Optima happy; they just may take a little longer doing it.....

Dont get me wrong guys, not saying an optima wont work - of course it will. Just not at its peak (or to the specs on the label)

Sam

You must have difficulty reading, so let me restate it more clearly; the Optima will be fine, the only difference the slight voltage change makes is in the time it takes to reach full charge; but it definitely reaches full (per the label) charge..................