Hopefully I will not need to do this for 3-4 years but I’m curious. Manual p. 314 says only have done by Porsche dealer & you cannot tell what type of (aftermarket) battery will replace the genuine Porsche battery by the markings on the battery. WTF?!
I like Interstate brand. Often better quality than OEM but, that is for lead acid, not sure for AGM.
So, has anyone here had to replace their battery & did you have Porsche do it & what did it cost you?
I finally took a look at my battery which is under the trunk floor in front of the Bose SubW (After lift the cargo floor, must lift carpet & then lift another cover to view & if need to access/change it--would need to remove collapsible spare tire!)
I see mine is 92Ah.
I searched & found Gaudin Porsche offers two; a 92Ah & a more powerful 105 Ah.
958-611-105-21
BATTERY 105 AMP HOUR MSRP $543.76, online price $351.05
Replaces:958-611-105-20
958-611-092-21
BATTERY 92 AMP HOUR MSRP $439.44, online price $283.70
Replaces: 7PP-915-105, 955-611-085-00, 955-611-092-00, 958-611-092-20
So, if you wanted the same battery you have now you’d get the 92Ah for $283.70.
My guess is that to have Porsche replace it for you you’d pay MSRP $439.44 + ½ hr. Labor! ~$500 to replace a @#$!!** battery?!
For Lead Acid batteries, you just need the dimensions to fit the space & the correct Ah & then it is reliability, price, warranty & specs such as CCA. How can it be that much different for AGM types? If, for example, Interstate made one to fit Macan that was the same size with more Ah for ~ $150 it would be tempting. For now, until I learn that aftermarket brands are available & work well, I’d probably upgrade to the genuine Porsche 105 AH & DIY.
I like Interstate brand. Often better quality than OEM but, that is for lead acid, not sure for AGM.
So, has anyone here had to replace their battery & did you have Porsche do it & what did it cost you?
I finally took a look at my battery which is under the trunk floor in front of the Bose SubW (After lift the cargo floor, must lift carpet & then lift another cover to view & if need to access/change it--would need to remove collapsible spare tire!)
I see mine is 92Ah.
I searched & found Gaudin Porsche offers two; a 92Ah & a more powerful 105 Ah.
958-611-105-21
BATTERY 105 AMP HOUR MSRP $543.76, online price $351.05
Replaces:958-611-105-20
958-611-092-21
BATTERY 92 AMP HOUR MSRP $439.44, online price $283.70
Replaces: 7PP-915-105, 955-611-085-00, 955-611-092-00, 958-611-092-20
So, if you wanted the same battery you have now you’d get the 92Ah for $283.70.
My guess is that to have Porsche replace it for you you’d pay MSRP $439.44 + ½ hr. Labor! ~$500 to replace a @#$!!** battery?!
For Lead Acid batteries, you just need the dimensions to fit the space & the correct Ah & then it is reliability, price, warranty & specs such as CCA. How can it be that much different for AGM types? If, for example, Interstate made one to fit Macan that was the same size with more Ah for ~ $150 it would be tempting. For now, until I learn that aftermarket brands are available & work well, I’d probably upgrade to the genuine Porsche 105 AH & DIY.
If anyone on this forum ever does it successfully (or tries it unsuccessfully), please add to this thread!"
