Help needed - Battery Question
Help needed - Battery Question
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Discussion

maxpower5

Original Poster:

30 posts

140 months

Sunday 11th January 2015
quotequote all
I have a 997.1 GT3 and it does not get driven sometimes for up to 3 weeks, especially this time of year.

I went to start it today and the battery was flat so I jump started it and took it for a run. Filled up with petrol and the car started fine. I then came home and switched the car off and the key became stuck in the ignition and the battery was totally flat.

I replaced the previous battery on the 12th of August 2013 with an official Porsche one as they told me that any other brand would invalidate my warranty. (Even though there are much better batteries for half the price)

My question is what kind of warranty will and official Porsche battery come with as the battery is only 1 year 4 months old? Also can any one recommend a good trickle charger to help the battery condition when the car is not being used.

Edited to say that the battery can be flat after only 10 days to 2 weeks of not being used. Is this normal our should I be looking for Porsche to replace the battery?

Thanks in advance.

Edited by maxpower5 on Sunday 11th January 19:41

sidicks

25,218 posts

250 months

Sunday 11th January 2015
quotequote all
maxpower5 said:
I have a 997.1 GT3 and it does not get driven sometimes for up to 3 weeks, especially this time of year.

I went to start it today and the battery was flat so I jump started it and took it for a run. Filled up with petrol and the car started fine. I then came home and switched the car off and the key became stuck in the ignition and the battery was totally flat.

I replaced the previous battery on the 12th of August 2013 with an official Porsche one as they told me that any other brand would invalidate my warranty. (Even though there are much better batteries for half the price)

My question is what kind of warranty will and official Porsche battery come with as the battery is only 1 year 4 months old? Also can any one recommend a good trickle charger to help the battery condition when the car is not being used.

Edited to say that the battery can be flat after only 10 days to 2 weeks of not being used. Is this normal our should I be looking for Porsche to replace the battery?

Thanks in advance.

Edited by maxpower5 on Sunday 11th January 19:41
OPC Battery has two years warranty, I think.

993AL

1,939 posts

247 months

Sunday 11th January 2015
quotequote all
Lidl will be stocking battery chargers this week. http://www.lidl.co.uk/en/our-offers-2491.htm?actio...

Check you local store though.

maxpower5

Original Poster:

30 posts

140 months

Sunday 11th January 2015
quotequote all
Thanks for the info. Will speak to Porsche and see what they say. Do you think that 2 weeks is an unacceptable amount for the battery to go flat for me to ask them to replace it?

996TT02

3,342 posts

169 months

Sunday 11th January 2015
quotequote all
Simple solution, disconnect the battery.

Other stuff good to know, this applies to my 996, perhaps also to your 997.

Unlocked, my car drains the battery in around 3 days.

Locked, probably around 2 weeks. Moral of the story, always lock car even in your garage.

Disconnected, retains sufficient charge to start for 5 months minimum (that's the longest I have actually let my car sit) undoubtedly longer too.

On a charger I noticed that bootlid light (and engine cover light, they go on together apparently) stay on so I did not think it to be an ideal solution but perhaps you could let the bonnet down gently or feed the wire so the lights go out.

But seriously, disconnecting is so simple and fool proof that I don't bother even thinking about any options.

996TT02

3,342 posts

169 months

Sunday 11th January 2015
quotequote all
maxpower5 said:
Thanks for the info. Will speak to Porsche and see what they say. Do you think that 2 weeks is an unacceptable amount for the battery to go flat for me to ask them to replace it?
Specifically, there probably is absolutely nothing wrong with your battery, but with your car (and I mean not just YOUR car). An interesting bit of "character" as one could optimistically describe it.



maxpower5

Original Poster:

30 posts

140 months

Sunday 11th January 2015
quotequote all
996TT02 said:
Simple solution, disconnect the battery.

Other stuff good to know, this applies to my 996, perhaps also to your 997.

Unlocked, my car drains the battery in around 3 days.

Locked, probably around 2 weeks. Moral of the story, always lock car even in your garage.

Disconnected, retains sufficient charge to start for 5 months minimum (that's the longest I have actually let my car sit) undoubtedly longer too.

On a charger I noticed that bootlid light (and engine cover light, they go on together apparently) stay on so I did not think it to be an ideal solution but perhaps you could let the bonnet down gently or feed the wire so the lights go out.

But seriously, disconnecting is so simple and fool proof that I don't bother even thinking about any options.
Thanks for the great advice. I think I will disconnect the battery from now on. I will probably also buy one of these Lidl trickle chargers as they seem a good deal for £13.99.

http://www.lidl.co.uk/en/our-offers-2491.htm?actio...

mph1977

12,467 posts

197 months

Sunday 11th January 2015
quotequote all
battery conditioner / trickle charger - in valuable with vehicles with high quiesence loads and /or infrequent use .

while the average car with a decent sized battery and low quiesent loads can sit for several weeks and still provide sufficent attempts to start, if the battery is too small ( bug eye scorpio looking at you as one example) or you have high quiesent loads ( mk1 and mk2 crusader ambulances even with isolator and the back up bike battery ) ...


993AL

1,939 posts

247 months

Sunday 11th January 2015
quotequote all
maxpower5 said:
996TT02 said:
Simple solution, disconnect the battery.

Other stuff good to know, this applies to my 996, perhaps also to your 997.

Unlocked, my car drains the battery in around 3 days.

Locked, probably around 2 weeks. Moral of the story, always lock car even in your garage.

Disconnected, retains sufficient charge to start for 5 months minimum (that's the longest I have actually let my car sit) undoubtedly longer too.

On a charger I noticed that bootlid light (and engine cover light, they go on together apparently) stay on so I did not think it to be an ideal solution but perhaps you could let the bonnet down gently or feed the wire so the lights go out.

But seriously, disconnecting is so simple and fool proof that I don't bother even thinking about any options.
Thanks for the great advice. I think I will disconnect the battery from now on. I will probably also buy one of these Lidl trickle chargers as they seem a good deal for £13.99.

http://www.lidl.co.uk/en/our-offers-2491.htm?actio...
You could do both. Personally I'd leave the battery connected if you're using the trickle charger. You can remove the croc clips from the charger and buy a plug that attaches to the cable then just plugs into your cigarette lighter, much quicker than attaching the clips to your battery.