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Help Please! Car Battery/Electrics (non Z4)
- inkey$
- Lifer
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Help Please! Car Battery/Electrics (non Z4)
I need non-Z4 car help!
My mother-in-law has a Nissan Micra K12 (2005) and I'm trying to get it back on the road for her after 6 months off.
The relatively new battery (12 months old) was fully charged and put back on the car, and whilst the dash lights worked, it would start, just click a lot. I used a jump pack on the car and it started immediately then ran fine.
After leaving it ticking over for 30 mins, she started up again fine. A few days later though, dash lights and central locking all work, but the car wont start again.
Want to take for an MOT this week, and can jump it to get going, but any experts know what I should be looking for with this issue? A few observations/questions:
- If it was a parasitic drain wouldn't the dash and central locking both be inoperable?
- How could I best check for parasitic drain bearing in mind I own a multi-meter, but barely know how to use it?
- I had thought starter motor, but the car started fine after 30 mins warning up at the weekend.
- Alternator seems to be charging the battery fine.
Any help or advice would be amazing. I want to get this tested and sorted for her asap as she's pretty immobile without it.
My mother-in-law has a Nissan Micra K12 (2005) and I'm trying to get it back on the road for her after 6 months off.
The relatively new battery (12 months old) was fully charged and put back on the car, and whilst the dash lights worked, it would start, just click a lot. I used a jump pack on the car and it started immediately then ran fine.
After leaving it ticking over for 30 mins, she started up again fine. A few days later though, dash lights and central locking all work, but the car wont start again.
Want to take for an MOT this week, and can jump it to get going, but any experts know what I should be looking for with this issue? A few observations/questions:
- If it was a parasitic drain wouldn't the dash and central locking both be inoperable?
- How could I best check for parasitic drain bearing in mind I own a multi-meter, but barely know how to use it?
- I had thought starter motor, but the car started fine after 30 mins warning up at the weekend.
- Alternator seems to be charging the battery fine.
Any help or advice would be amazing. I want to get this tested and sorted for her asap as she's pretty immobile without it.
Current: Project Audi A2 1.4SE
Previously: Z3R 2.8 • E46 330i • Z4R 3.0 • Z4///MC • E90 335i • Z4///MR • Z3///MC 'Breadvan' • Z3R 2.8 • E30 325i R • Z4C • Z4R 3.0
Previously: Z3R 2.8 • E46 330i • Z4R 3.0 • Z4///MC • E90 335i • Z4///MR • Z3///MC 'Breadvan' • Z3R 2.8 • E30 325i R • Z4C • Z4R 3.0
- smorris_12
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Help Please! Car Battery/Electrics (non Z4)
I'd start by assuming the battery, especially if it's a cheapie.
If it's the sort of car to do short journeys and was then left not fully charged for the six months (particularly if they're was a bout of moving it 6' here and there to park it up) I can imagine it ending up flat from sitting there. Leaving a battery flat for a period wrecks the capacity and ability to hold charge. Result, as battery that'll just about hold one good start for a day or so.
If it's the sort of car to do short journeys and was then left not fully charged for the six months (particularly if they're was a bout of moving it 6' here and there to park it up) I can imagine it ending up flat from sitting there. Leaving a battery flat for a period wrecks the capacity and ability to hold charge. Result, as battery that'll just about hold one good start for a day or so.
------
Scott
Where are we going and why am I in this handbasket?
2006 Z4 2.5si Silbergrau und rot
Scott
Where are we going and why am I in this handbasket?
2006 Z4 2.5si Silbergrau und rot
- inkey$
- Lifer
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Help Please! Car Battery/Electrics (non Z4)
Thanks I'll start there. Once in, I've been reading up on checking for parasitic draw, and there seems to be a few methods with a multimeter. Any tried and tested ways you could recommend?smorris_12 wrote: ↑Wed May 31, 2023 5:35 pm I'd start by assuming the battery, especially if it's a cheapie.
If it's the sort of car to do short journeys and was then left not fully charged for the six months (particularly if they're was a bout of moving it 6' here and there to park it up) I can imagine it ending up flat from sitting there. Leaving a battery flat for a period wrecks the capacity and ability to hold charge. Result, as battery that'll just about hold one good start for a day or so.
Current: Project Audi A2 1.4SE
Previously: Z3R 2.8 • E46 330i • Z4R 3.0 • Z4///MC • E90 335i • Z4///MR • Z3///MC 'Breadvan' • Z3R 2.8 • E30 325i R • Z4C • Z4R 3.0
Previously: Z3R 2.8 • E46 330i • Z4R 3.0 • Z4///MC • E90 335i • Z4///MR • Z3///MC 'Breadvan' • Z3R 2.8 • E30 325i R • Z4C • Z4R 3.0
- smorris_12
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- Joined: Mon Apr 18, 2022 2:14 pm
- Location: Somerset
Help Please! Car Battery/Electrics (non Z4)
Start with just putting it between battery terminal and lead. That'll tell you if there is actually a high draw when the car's off (make sure the inside light is off, particularly if you start on the 200mA setting rather than the 10A one.)
I don't think Micras of this era will have anything that stays awake for 20 minutes like later BMW's do so you can do the test straight away.
I don't think Micras of this era will have anything that stays awake for 20 minutes like later BMW's do so you can do the test straight away.
------
Scott
Where are we going and why am I in this handbasket?
2006 Z4 2.5si Silbergrau und rot
Scott
Where are we going and why am I in this handbasket?
2006 Z4 2.5si Silbergrau und rot
- inkey$
- Lifer
- Posts: 10479
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Help Please! Car Battery/Electrics (non Z4)
Will do. And thanks again. Very much appreciated smorris_12smorris_12 wrote: ↑Wed May 31, 2023 6:09 pm Start with just putting it between battery terminal and lead. That'll tell you if there is actually a high draw when the car's off (make sure the inside light is off, particularly if you start on the 200mA setting rather than the 10A one.)
I don't think Micras of this era will have anything that stays awake for 20 minutes like later BMW's do so you can do the test straight away.
Current: Project Audi A2 1.4SE
Previously: Z3R 2.8 • E46 330i • Z4R 3.0 • Z4///MC • E90 335i • Z4///MR • Z3///MC 'Breadvan' • Z3R 2.8 • E30 325i R • Z4C • Z4R 3.0
Previously: Z3R 2.8 • E46 330i • Z4R 3.0 • Z4///MC • E90 335i • Z4///MR • Z3///MC 'Breadvan' • Z3R 2.8 • E30 325i R • Z4C • Z4R 3.0
- smorris_12
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- Joined: Mon Apr 18, 2022 2:14 pm
- Location: Somerset
Help Please! Car Battery/Electrics (non Z4)
A pleasure. Let us know how it goes.
------
Scott
Where are we going and why am I in this handbasket?
2006 Z4 2.5si Silbergrau und rot
Scott
Where are we going and why am I in this handbasket?
2006 Z4 2.5si Silbergrau und rot
- inkey$
- Lifer
- Posts: 10479
- Joined: Sun Mar 21, 2010 9:48 pm
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Help Please! Car Battery/Electrics (non Z4)
All went well. Measured the battery this morning and it was only 10v with ignition off, so put in a new battery and got the car through its MOT. Now taxed, tested and ready for sale (after some fettling from me). Added a physical battery isolator too, until I can see what if anything is drawing current from the battery over time.
Current: Project Audi A2 1.4SE
Previously: Z3R 2.8 • E46 330i • Z4R 3.0 • Z4///MC • E90 335i • Z4///MR • Z3///MC 'Breadvan' • Z3R 2.8 • E30 325i R • Z4C • Z4R 3.0
Previously: Z3R 2.8 • E46 330i • Z4R 3.0 • Z4///MC • E90 335i • Z4///MR • Z3///MC 'Breadvan' • Z3R 2.8 • E30 325i R • Z4C • Z4R 3.0
- inkey$
- Lifer
- Posts: 10479
- Joined: Sun Mar 21, 2010 9:48 pm
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Help Please! Car Battery/Electrics (non Z4)
Just checked for parasitic drain too. Disconnected the negative cable, set the multimeter to 20A and created a series across the battery. Results came out as 0.26. Is that okay do you think?
Current: Project Audi A2 1.4SE
Previously: Z3R 2.8 • E46 330i • Z4R 3.0 • Z4///MC • E90 335i • Z4///MR • Z3///MC 'Breadvan' • Z3R 2.8 • E30 325i R • Z4C • Z4R 3.0
Previously: Z3R 2.8 • E46 330i • Z4R 3.0 • Z4///MC • E90 335i • Z4///MR • Z3///MC 'Breadvan' • Z3R 2.8 • E30 325i R • Z4C • Z4R 3.0
- smorris_12
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Help Please! Car Battery/Electrics (non Z4)
Hmm. 260mA is on the high side. That would fully flatten a 40Ah battery in a week. Might be worth leaving it for 20 minutes or so with all the doors shut and ignition off etc and see if it drops down to something more sensible.
------
Scott
Where are we going and why am I in this handbasket?
2006 Z4 2.5si Silbergrau und rot
Scott
Where are we going and why am I in this handbasket?
2006 Z4 2.5si Silbergrau und rot
- inkey$
- Lifer
- Posts: 10479
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Help Please! Car Battery/Electrics (non Z4)
Will do. Might start pulling fuses too, see if anything drops. So I’m aiming for 20V test resulting in around 0.02mA?smorris_12 wrote: ↑Fri Jun 02, 2023 7:47 pm Hmm. 260mA is on the high side. That would fully flatten a 40Ah battery in a week. Might be worth leaving it for 20 minutes or so with all the doors shut and ignition off etc and see if it drops down to something more sensible.
Current: Project Audi A2 1.4SE
Previously: Z3R 2.8 • E46 330i • Z4R 3.0 • Z4///MC • E90 335i • Z4///MR • Z3///MC 'Breadvan' • Z3R 2.8 • E30 325i R • Z4C • Z4R 3.0
Previously: Z3R 2.8 • E46 330i • Z4R 3.0 • Z4///MC • E90 335i • Z4///MR • Z3///MC 'Breadvan' • Z3R 2.8 • E30 325i R • Z4C • Z4R 3.0
- smorris_12
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- Joined: Mon Apr 18, 2022 2:14 pm
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Help Please! Car Battery/Electrics (non Z4)
"20V test"?
But, yes, quiescent current for a car should be lower. 20mA (0.02A) wouldn't be unreasonable. Mind you, I reckon a Micra would be lower again.
Just found this thread:
https://www.honestjohn.co.uk/forum/post ... -k12-1-2--
while wondering what idle current ought to be.
But, yes, quiescent current for a car should be lower. 20mA (0.02A) wouldn't be unreasonable. Mind you, I reckon a Micra would be lower again.
Just found this thread:
https://www.honestjohn.co.uk/forum/post ... -k12-1-2--
while wondering what idle current ought to be.
------
Scott
Where are we going and why am I in this handbasket?
2006 Z4 2.5si Silbergrau und rot
Scott
Where are we going and why am I in this handbasket?
2006 Z4 2.5si Silbergrau und rot
- inkey$
- Lifer
- Posts: 10479
- Joined: Sun Mar 21, 2010 9:48 pm
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Help Please! Car Battery/Electrics (non Z4)
My mistake. I meant setting the multimeter to 10A and testingsmorris_12 wrote: ↑Fri Jun 02, 2023 10:34 pm "20V test"?
But, yes, quiescent current for a car should be lower. 20mA (0.02A) wouldn't be unreasonable. Mind you, I reckon a Micra would be lower again.
Just found this thread:
https://www.honestjohn.co.uk/forum/post ... -k12-1-2--
while wondering what idle current ought to be.
Thanks for the Honest John link too. I read that a while back, so if none of the fuses help drop the draw I’m going weigh up my options on next steps.
Current: Project Audi A2 1.4SE
Previously: Z3R 2.8 • E46 330i • Z4R 3.0 • Z4///MC • E90 335i • Z4///MR • Z3///MC 'Breadvan' • Z3R 2.8 • E30 325i R • Z4C • Z4R 3.0
Previously: Z3R 2.8 • E46 330i • Z4R 3.0 • Z4///MC • E90 335i • Z4///MR • Z3///MC 'Breadvan' • Z3R 2.8 • E30 325i R • Z4C • Z4R 3.0
- smorris_12
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- Joined: Mon Apr 18, 2022 2:14 pm
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Help Please! Car Battery/Electrics (non Z4)
It was the coincidental current that got me. I reckon that fuse 7 is the first one to try.
------
Scott
Where are we going and why am I in this handbasket?
2006 Z4 2.5si Silbergrau und rot
Scott
Where are we going and why am I in this handbasket?
2006 Z4 2.5si Silbergrau und rot
- inkey$
- Lifer
- Posts: 10479
- Joined: Sun Mar 21, 2010 9:48 pm
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Help Please! Car Battery/Electrics (non Z4)
You and the HJ thread are now confirmed correct. I just pulled Fuse 7 and the draw dropped right down to acceptable levels immediately. Problem found. Now to try and fix! (Or live with a battery cut off switch)smorris_12 wrote: ↑Sat Jun 03, 2023 10:20 am It was the coincidental current that got me. I reckon that fuse 7 is the first one to try.
Current: Project Audi A2 1.4SE
Previously: Z3R 2.8 • E46 330i • Z4R 3.0 • Z4///MC • E90 335i • Z4///MR • Z3///MC 'Breadvan' • Z3R 2.8 • E30 325i R • Z4C • Z4R 3.0
Previously: Z3R 2.8 • E46 330i • Z4R 3.0 • Z4///MC • E90 335i • Z4///MR • Z3///MC 'Breadvan' • Z3R 2.8 • E30 325i R • Z4C • Z4R 3.0
- inkey$
- Lifer
- Posts: 10479
- Joined: Sun Mar 21, 2010 9:48 pm
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Help Please! Car Battery/Electrics (non Z4)
Considering a fuse bypass switch for inside the car so I don't have to open the bonnet every time and connect the battery. Do you reckon one of these would work on the immobiliser fuse okay? Think they're primarily designed for towing, but thought the theory must be the same for any fuse. Just unlock the car with the key, jump in and 'switch on' the immobiliser.smorris_12 wrote: ↑Sat Jun 03, 2023 10:20 am It was the coincidental current that got me. I reckon that fuse 7 is the first one to try.
https://shop.mazacio.com/products/car-fuse-bypass
Current: Project Audi A2 1.4SE
Previously: Z3R 2.8 • E46 330i • Z4R 3.0 • Z4///MC • E90 335i • Z4///MR • Z3///MC 'Breadvan' • Z3R 2.8 • E30 325i R • Z4C • Z4R 3.0
Previously: Z3R 2.8 • E46 330i • Z4R 3.0 • Z4///MC • E90 335i • Z4///MR • Z3///MC 'Breadvan' • Z3R 2.8 • E30 325i R • Z4C • Z4R 3.0