Guys,

the original battery in my 2005 Turbo S is acting up. What's the best solution - Porsche, Audi, DIY? What brands are suitable? I don't mind taking it to Porsche and getting screwed, but really don't have the time to make an appointment and drive down from London..... THanks for any help...Jag

 

The recommended replacement battery for my 99 boxster when I had it was an Interstate - easily available lots of places. Not sure if that's the same for an 05 997, but I would think so.

 

There should be a battery type in your manual for your car. Once you have that you can pick it up at most retailers. Interstate is not bad and the price for a good battery should be under $200 easy. Frinds shop sells them but I don't know retail price, just what I pay. Try google to find the type/model for your car.

 

East Penn manufactures batteries and they have an outlet in London.

East Penn Battery
148 Newbold Court
London, ON N6E 1Z7

Tel: 519-685-9900
Fax: 519-685-9232
Toll Free: 1-800-387-3370

You can find the "group size" marked on your old battery. I think it may be a group 49.

 

Thanks guys, I'll try East Penn and Interstate tomorrow. Any tips on chaning without setting off my alarm?

I dont use the radio anyway so it can wait until the next service...Jag

 

Jag

if you have a battery maintainer that plugs in your lighter then plug it in first . it will keep your memory and electronics on life support while you change the battery.

 

Does disconnecting/reconnecting power set off the alarm? I didn't know that.

 

Jag,

The 48 & 49 group sizes from East Penn are available in a MF (Maintenance Free) and AGM (Absorbent Glass Mat) design battery.

The AGM generally provides more CCA (a rating at -18C), but if you don't operate at sub zero temperatures, its not an issue. There are of course other advantages such as a lower rate of self discharge.

BTW, there is no such thing as a maintenance free battery, they all need to be kept charged up during the off season or during long periods of inactivity.

 

Maintenance free always referred to the fact there are no caps to top up the water ie a sealed unit.
It has nothing to do with charging during during "off season". You would do that regardless of battery type.

 

Yes, I know...I work with batteries most of the day every day. My batteries don't last 10+ years for no reason...one was 16 years old when we sold the car...it is still running in the 1990 Tercel the last I heard...an OEM Panasonic battery.

The problem is, to most people, "maintenance free" means "I don't need to do anything to it" which is why they sulphate and fail.

And even the maintenance free ones with the flat strips or rectangular caps that supposedly cannot be removed, can be removed in some cases (depends on the battery) to add distilled water.

 

I had battery "challenges" in the last 2 weeks, as I took the car out of storage. The alarm didn't go off when I took the battery out. It did once when I connected a supplemental battery to the fuse box to pop the hood open, but I shut it off with the remote, no big deal.

Once I had power back on, my radio was locked, but the passcode was in my paperwork. It also reverted back to miles (USA car), so I need to get the manual out and display KMs again...

 

Never thought of that, thanks for the tip...Jag

 

just replaced my battery in my 2007 C4S. Many recommend the Interstate MTP-H7, which is a BCI Group 94R battery. 94R batteries are available from Canadian Tire (Exide battery) for $149 or from Wal-Mart under Energizer brand (made my Johnson Controls) for $117 (part number is 108-94R).

94R battery is approx. H: 7.5, H: 6 7/8 L: 12.5

I used the Energizer from Wal-Mart, which has 765CCA and 956 CA. It's a direct fit, including the vent hose on the passenger side. I stole the driver side vent plug from the old battery

 

Guys, thanks for all the fantastic help, got my battery replaced yesterday.

All is well, including a boost from a cute chick in a rusty jeep

 

yeah but did you get her number ?