Bobby G

Hi all,

For those of you who recently replaced a battery in your 993, which did you choose and why? I'm open to suggestions.

Some research pointed to an Interstate model that appears to have been discontinued.

Thanks in advance.

goofballdeluxe

I had an Interstate that came with my 96 C4S. I just replaced it after 8.5 years. It hadn't gone dead, in fact it was working perfectly, but my car was in the shop anyway, and I figured it was probably due, so I replaced it as a preventive measure.

Can't get much better than that, in my opinion.

Bobby G

Thanks GB. What model was it?

TheBen

8.5 years. That lasted a longtime!;-0

skl2

I just put an Everstart Maxx H6 in my friends because the warranty is awesome. Also have the Everstart in my CS.

mgianzero

I put in an Interstate MTP-91 (700 CCA / 875 CA) in my 993 when I bought it which lasted me 7 years. I live in a mild environment (southern CA) but I abused the battery a bit - i.e. I let it drain a bit and did not charge it right away. I also had a trickle charger but did not use it much.

A few months back I was due another battery. This time I decided to go to East Penn Manufacturing (who made Porsche's original battery). I decided to go with a East Penn (aka Deka) 648MF, which is really a direct replacement for the Porsche 993 battery. But they are hard to come by out on west coast.

Then I discovered that Deka is selling their battery under the name of Duracell (SLI48H6). So I bought a SLI-48H6M since I wanted to stick with a lead-acid (AGM batteries are a bit more expensive) and the SLI-48H6M has even more CCA and CA than the standard replacement at 730 CCA and 895 CA and only weighted a 1/2 pound more than the SLI48H6. Found one at Batteries Plus for $135. You can search for a supplier near you from their website: http://www.dekabatteries.com

Here are two images of battery (notice I took positive terminal cover off Interstate battery and put it on this one). I was told you didn't need a cover but I'm old school, so I made it work.

ShdwFx

My experience is the same as goofballdeluxe. Had an Interstate for ~8 yrs that came with the car when I bought it; it was still doing fine but I replaced it as a preventative measure. If you get the MTP-91, be sure to ask for the vent kit as well.

BLT4SPD

Interstate here as well. I have used them in all my cars for years and years and they are really hard to beat in terms of durability, availability and warranty. The last one I bought was for my 993tt at it came from my local Firestone Auto Care Center. It was somewhere around $110 out the door.

DanL993

I put in East Penn. XLR8 has some good ideas about batteries too. You might PM him.

Rinty

I haven't seen him post for a short while, so I think he's on his annual bike trip in the Alps.

linen grey ghost

Duracell 348116 (group 48 H) $96.52 tax & state fee included at Sam's Club.

Perfect fit, comes with vent parts in plastic bag (make certain it's stuck to the side of the battery).

hkspwrsche

Is the one from the dealer an arm and a leg? just curious if anyone priced it.

sonny1

Odyssey, and be done with it!
cheers, Sonny1.

TheBen

I have an Interstate (with vent kit of course) for about 5 years myself. I'd consider going to a little more lightweight battery next time (like Odyssey). I also have my car on battery tender when I know I'm not going to be driving it for a while.

H.H.Chinn

Does anyone use the Optima Red Top sealed battery any more?