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Battery life

AlistairF

AlistairF

PCGB Member
Hi My 981s is 6 this coming March. Just debating whether to grasp the nettle and change the (original) battery while it's good. I have no indications of any problems...any consensus on expected life ?

Thanks ! A
 
If it is a Moll battery (original Porsche)they very suddenly die after 5 to6 years.
Replace with Bosch or Varta
 
Probably the kiss of death even replying to this but mine (built Feb 2013, first reg August 2013, bought by me Feb 2014) still seems absolutely fine. However, when not used I religiously keep in on a CTEK. It's a Banner battery - the Moll in my original 986 (daily driver with lots of long journeys) started cranking noticeably more slowly after about 4 years so I replaced it with a Bosch. The 981 hasn't shown any similar signs so far, though I recognise that some battery failures are instantaneous. I'm sticking with mine for the time being.
 
Ian,

I think 981-series cars have Banner rather than Moll batteries fitted and I’m sure I read that Moll have gone bust, although it seems that the Porsche Centres can still get them for other cars so fitted to meet Extended Warranty requirements.

Alistair, if you’re concerned you can always get your battery checked at one of the motor factors, maybe FOC? If you’ve had your Boxster on a battery conditioner on a regular basis that should help to extend its life significantly.

Jeff
 
6 years seems a reasonable life for a battery. My 15 year-old Boxster (how did that happen?) is on its third.

Costco are very reasonably priced if you are not under extended warranty.
 
The battery on my October 2015 Cayman almost failed to start the car last xmas. I took it to the OPC to get the battery checked and was assured it was good but getting drained by my dash-cam. I now keep it on a ctek charger as changing batteries on a 981 isn't as simple as previous cars as some programming is involved allegedly.
 
Keep it on trickle charger when not in use. Never had one fail on any of my Porsches. If you can top up the battery water do this as well.
 
Thanks all. Its a Banner. Just read about the 'programming' required on the Banner website...I do trickle in the closed season.
Will probably keep my fingers crossed and trust the Banner 3x normal life claim. Whatever that is !!
A
 
During the original lockdown, I set up a battery charging schedule for our family's cars. And realised that I bought my 1999 Boxster's current Bosch battery 10 years ago! As a precaution I bought a new (another Bosch!) battery - as I didn't want any breakdown drama in those strange times. Our Toyota iQ's (assumed original) battery is 8 years old - and still going strong. As was the battery on our Suzuki, now passed on to my son. Batteries do seem to last much longer now.
 
I still have the original on a 10yr old boxster. It is connected to a £25 smart charger from amazon every time it’s put in the garage, since I’m rarely sure how long it will be until it’s next outing.
It still cranks over quickly and fires straight up. If it ever starts to slow down I’ll change it. I can only assume that since the battery is not exposed to large temperature changes in the garage and always put on a conditioner after use, the 5-6 year rule doesn’t apply.

 
Mike1960 said:
I still have the original on a 10yr old boxster. It is connected to a £25 smart charger from amazon every time it’s put in the garage, since I’m rarely sure how long it will be until it’s next outing.
It still cranks over quickly and fires straight up. If it ever starts to slow down I’ll change it. I can only assume that since the battery is not exposed to large temperature changes in the garage and always put on a conditioner after use, the 5-6 year rule doesn’t apply.
Click to expand...
My 2005 997 had the original battery when sold in 2015. Once again on a CTEK all winter.
 
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