Cayman R sat in garage......battery life??

[Far Cough]

LuckyNumber7 said:

Thanks for the tips.....main problem is no power to the garage as it's in a block away from the house.

Does anyone know why sometimes you can jump start a car and the battery will be knackered and need replacing and other times it'll be ok

Once the battery goes pat a certain stage of discharge then it will never recover according to the RAC fella. He also said that after starting the car once , it will take a drive of about 8 miles to recover the power used to start the car in the first place. So makes a mockery of all those people that pop out to start the car to check the battery or let it idle to "top it up".

As for the CR - Mine lasted over 4 weeks with no problem and I had alarm , tracker etc. As stated , they do go into hibernation to preserve the battery after a couple of days.

[Klippie]

LuckyNumber7 said:

Thanks for the tips.....main problem is no power to the garage as it's in a block away from the house.

Does anyone know why sometimes you can jump start a car and the battery will be knackered and need replacing and other times it'll be ok

If you need to leave the battery in the car disconnect the terminals and it will keep its charge much longer, or remove it from the car and trickle charge it at the house.

[Far Cough]

Klippie said:

If you need to leave the battery in the car disconnect the terminals and it will keep its charge much longer, or remove it from the car and trickle charge it at the house.

Not so easy if you need the alarm and tracker active. OP , have you considered any of the solar trickle chargers ? You could put it on the roof of the garage out of sight and run the lead inside and through a doorshut into the cigarette lighter.... just thinking out loud...

[JeffC]

parked mine up 2 weeks ago, went to start it yesterday, battery is as dead as a hammer,checked history and it had new battery fitted at Porsche last year. Managed to get bonnet up and battery on charge over night, started today and dash lit up like a xmas tree with warning lights airbag and PSM light Pretty st I reckon, would be sick If I had parked it at an airport to go on holiday to come back to it not starting, cant say I have never had a battery discharge itself in such a short period of time on any car I owned, does the typical Porsche owner accept this as the norm ?

[freddy the frog]

this whole battery life thing is weird seems like no two cars are the same, i can gett a month out of mine no probs others struggle with 2 weeks wonder why?

[Trev450]

Vehicles with tracking devices fitted will drain a battery more quickly than those without.

[Ozzie Osmond]

JeffC said:

parked mine up 2 weeks ago, went to start it yesterday, battery is as dead as a hammer,checked history and it had new battery fitted at Porsche last year.

The questions isn't when the new battery was fitted. The question is how the car has been used since the new battery was fitted.

Anyhow, what's the warranty period on that battery?

[JeffC]

Ozzie Osmond said:

JeffC said:

parked mine up 2 weeks ago, went to start it yesterday, battery is as dead as a hammer,checked history and it had new battery fitted at Porsche last year.

The questions isn't when the new battery was fitted. The question is how the car has been used since the new battery was fitted.

Anyhow, what's the warranty period on that battery?

I'm not sure that should make any difference,my car had been used most days since I bought it until parked up a couple weeks ago,have to say I was quite surprised when It was dead after a such a short period of time.

No idea on Porsche but Cheaper batteries come with minimum 2 year guarantee, pretty sure something like a Bosch will be 4 year, for my thinking the only way that the battery should go flat is if something is draining it ? looking at the options that my car has fitted over a standard car nothing should be powered up after I turn it off.

[Dan911]

Put my R away 4th Dec. started it for the first time on Saturday and started on the button..

[LuckyNumber7]

28 days later.............it started fine.

Seems like it really does vary, I never do short jouneys so I'm hoping that's kept the battery in good shape.

Drove it 40 miles for a good recharge and a reminder how fun it is

[freddy the frog]

Just had to buy the big ctek charger for mine as the small 3.6 was not enough to pull the battery up
i was getting false info as the trickle charger was on every 3 weeks but only just topping it up but when i came to start it the whole thing shut down with the usual psm error and all other things not working phoned porche and they said buy a much bigger charger .see how it is tommorow

[Nimerino]

freddy the frog said:

Just had to buy the big ctek charger for mine as the small 3.6 was not enough to pull the battery up
i was getting false info as the trickle charger was on every 3 weeks but only just topping it up but when i came to start it the whole thing shut down with the usual psm error and all other things not working phoned porche and they said buy a much bigger charger .see how it is tommorow

I bought the MXS 7.0 and haven't had a problem. Due to my particular living arrangement the 997 GTS is cycled, i.e. it gets charged every week or two to nearly full, rather than being trickle charged. With 7 amps, this usually takes a couple of hours.

[PaulD86]

Was at my local OPC yesterday picking up my car and decided to just buy their trickle charger - I know I could have got one cheaper but I was there and they had one and I just couldn't really be bothered ordering one. Now plugged in to keep it topped up.

[JeffC]

after my car wouldnt start a few weeks ago I remembered I had a maintenance charger in the cupboard that I bought for my Caterham a few years ago, from memory I paid £5.99 for it from local motor factors and that is doing the job, car is now starting first crack every time . Still cant see why my battery should discharge itself though .

[SkinnyPete]

JeffC said:

after my car wouldnt start a few weeks ago I remembered I had a maintenance charger in the cupboard that I bought for my Caterham a few years ago, from memory I paid £5.99 for it from local motor factors and that is doing the job, car is now starting first crack every time . Still cant see why my battery should discharge itself though .

Because they are st.

I wonder if the 981 batteries are any better.

[993AL]

Lidl will be stocking battery chargers next week http://www.lidl.co.uk/en/our-offers-2491.htm?actio...

Check you local store though.

[bcr5784]

993AL said:

Lidl will be stocking battery chargers next week http://www.lidl.co.uk/en/our-offers-2491.htm?actio...

Check you local store though.

What a bummer - just bought a CTEK, and have seen elsewhere this is internally the same - and has 6v as well.

[freddy the frog]

Just checked new bigger charger after 24 hrs on charge and will only charge 50% so battery is f----d
car just over two and half years old and needs a new battery. well i will be putting a Varta blue seal on at £85 porche can poke the £270.
Does anybody know if anything will need recoding once battery is disconected its been showing psm failure and various other things wondering if they reset themselves once new battery is fitted

[JeffC]

freddy the frog said:

Just checked new bigger charger after 24 hrs on charge and will only charge 50% so battery is f----d
car just over two and half years old and needs a new battery. well i will be putting a Varta blue seal on at £85 porche can poke the £270.
Does anybody know if anything will need recoding once battery is disconected its been showing psm failure and various other things wondering if they reset themselves once new battery is fitted

when my battery went dead I had airbag light on which I cleared with Launch and PSM fault which didnt clear but from what I have read it will once I drive it up the road and lock the steering from left to right.