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GTS 4.0 battery

Hi,

So I have a Jan 2022 Cayman GTS 4.0. From day one the car has always been put on a battery tender ( official Porsche one as well). Last Sunday after an 80 mile trip, I came out after lunch and the battery was unable to turn the engine over. Dash was lit up like a Christmas tree and warning of low battery. Thankfully AA were able to get it going using a booster, so I got home after a two hour wait.

The OPC tested the battery and said it had a duff cell and needed to be replaced. Porsche won’t cover it under warranty either as it‘s only done 2k miles.

Quite disappointing as I thought I was doing the right thing by always having it on the tender, but it seems to need more than that. Lesson learnt…£380 to replace :-(

 
I do not see why the low millage as anything to do with the premature failure of a faulty battery.

And should be replaced under warranty, The use of a Ctek charger is recommended by Porsche and cars in the showrooms are plugged in to them

I have a Boxster 4.0 and have had the charger on from day one, which is the same unit I used on my 981 with no problems so far.

Have you taken this up with Porsche uk

 
As above, there does seem to be inconsistency among the official dealers and it would be worth taking up the matter with with Porsche GB. You’re covered by the 3-year New Vehicle Warranty and - no matter what Porsche say - should expect the battery to last more than 18-months before a cell failure, especially since you’re keeping it on a battery conditioner.

If Porsche can offer a 2-year warranty on parts fitted by a dealer surely they should fork-up for your replacement battery … or at least make a contribution towards its cost?

Jeff

 
If the OPC are being obstructive I'd contact Banner UK. The battery should come with a 2 year warranty which you are comfortably inside, so if they agree it is a premature failure/fault you could then go back to the OPC and argue the point or accept a replacement from Banner.

Porsche cannot reasonably contend that the battery manufacturer is wrong if Banner agree that it is a fault.

 
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