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1633 posts

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# 250626 19-May-2019 15:34
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We know of a car that has been in the garage unused for a couple of years. The battery is sure is dead, but can it fail a jump start?  

 

I have tried googling this but failed to find an answer.  Thanks.  

 

Cheers

 

 

 

Edit - there is power when hooked up lights, aircon etc.  It cranks.  We have left the cables on for 10mins prior to jumping it.  Have also added petrol. 


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  # 2240826 19-May-2019 15:37
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Another vehicle will jump it but the battery will be toast.

Put a new battery in it .




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  # 2240828 19-May-2019 15:40
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sdavisnz: Another vehicle will jump it but the battery will be toast.

Put a new battery in it .

 

 

 

We tried jumping it to no avail ... can batteries go so bad that a jump start does not work?  Thing was could put a battery in it but the car isn't going to be used, they pushed the car out to wash off the mice pee .... 


 
 
 
 


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  # 2240836 19-May-2019 16:08
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If it cranks then its getting enough power from the other car, was it working before it was parked? Not filled with crap ethanol fuel before parked up?

 

Could mice have chewed the wiring? How old is the car? Is it so old it has a distributor in it?





Richard rich.ms

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  # 2240837 19-May-2019 16:09
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Call the scrap yard and ask them to come pick it up .




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  # 2240838 19-May-2019 16:11
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richms:

 

If it cranks then its getting enough power from the other car, was it working before it was parked? Not filled with crap ethanol fuel before parked up?

 

Could mice have chewed the wiring? How old is the car? Is it so old it has a distributor in it?

 

 

 

 

Was working fine.  2001 Audi A4.  38,000 on the clock.  The car just wasn't used as they had a smaller car for city driving.  The husband had his station wagon.  Just the BP Unleaded 91/98.  


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  # 2240840 19-May-2019 16:15
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Cant hurt to try putting the battery on a charger - when disconnected from the car and see if it takes anything, chances are it wont, and if it does it will die really quickly.

 

What voltage does it have when you have nothing connected to the battery?





Richard rich.ms



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  # 2240842 19-May-2019 16:23
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richms:

 

Cant hurt to try putting the battery on a charger - when disconnected from the car and see if it takes anything, chances are it wont, and if it does it will die really quickly.

 

What voltage does it have when you have nothing connected to the battery?

 

 

 

 

The battery is connected in the system but there is no electric at all.  The car has been stored in the garage for this long, some years ago each couple of months they take it out they and to jump it and it worked.  For the last good few years the cars just left there because they had tried a charger - CTEK Charger but the charger couldn't get off from step 1.  They also tried before a traditional older style charger the voltage didn't register much after charging.  

 

 

 

Just used the multi-meter.  The battery is still connected to the car.  It measures 0.60V.  Yep, I tried the same setting with a AA battery and it measured 1.5V.  


 
 
 
 


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  # 2240843 19-May-2019 16:30
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If its been there when you tried jumping and its down there already then its stuffed. Even when connected to another for only a few mins a revivable battery would be at least at 10v or so.

 

Can you borrow a battey out of another car with the same posts and try that when you are jumping?





Richard rich.ms

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  # 2240844 19-May-2019 16:39
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What's your actual objective? Just to start the car for a few minutes? Or get it running long term?

 




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  # 2240845 19-May-2019 16:39
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richms:

 

If its been there when you tried jumping and its down there already then its stuffed. Even when connected to another for only a few mins a revivable battery would be at least at 10v or so.

 

Can you borrow a battey out of another car with the same posts and try that when you are jumping?

 

 

 

 

I just used the multi-meter. The car was tried unsuccessfully today to jump that was maybe 3hrs ago?  

 

 

 

Don't have a spare battery, rather than pulling a battery off another car temporarily they probably prefer just to purchase a new battery rather than swapping it back to the donor vehicle afterwards.  Then maybe use a CTEK charger and do a monthly charge / trickle charge.  




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  # 2240846 19-May-2019 16:40
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Delphinus: What's your actual objective? Just to start the car for a few minutes? Or get it running long term?

 

 

 

Their objective is to put back in the garage because it's not being used.  If they have to I guess is to purchase a battery but the car isn't going to be used.  The drive way is inclined up so pushing the car back up is not possible .... 


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  # 2240848 19-May-2019 16:44
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Anyone in the family an AA member? They have battery delivery thats not much more expensive than going and buying one most of the time.





Richard rich.ms



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  # 2240849 19-May-2019 16:47
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richms:

 

Anyone in the family an AA member? They have battery delivery thats not much more expensive than going and buying one most of the time.

 

 

 

 

Not anyone I know and not for that car, not sure if AA attach them to specific cars.  I probably do know a friend who is a member.  I checked for AA battery prices online and yeah you save a bit but it generally $350+.  The battery replacement is a bit more fussy than a 1990s / 2000s Toyota but it is do'able on a weekend.  


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  # 2240856 19-May-2019 17:05
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Suggest you look out for a battery special at Supercheap or Repco. They have then a little less frequently than Brisco sales.


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  # 2240873 19-May-2019 17:39
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Make sure you have decent jumper cables, most of the cables today are too light and are not jumper cables but booster cables, desighned to be used if the battery is not too flat.

 

Often the car will crank bit not spark due to low voltage.

 

 

 

When I jump start a car, I leave the engine running, I connect the ground to ground, then connect the positive to positive, once you connect the positive you should hear your engine labour as the alternator is now trying to charge the flat battery, as is your battery.

 

 

 

If you dont hear the labouring of your engine you do not have a good connection and there is no point even trying to start the other car.

 

Once you have the car started you will need to go around the block a few times to charge the battery, the battery may be knackered and need replacing,   my father is a retired auto electrician and used to tell clients to drive the long way home and that would charge the battery.

 

Have fun.

 

John





I know enough to be dangerous


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