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Battery.......again!!!

Discuss problems you have had or are having with your Z4
dans6490
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Battery.......again!!!

Post by dans6490 » Fri Sep 22, 2017 11:49 am

ph001 wrote: Fri Sep 22, 2017 11:38 am CTEK MXS 5.0. I wouldn't even consider anything else. Where abouts in the country are you?
Bewdley, Nr Worcester

dans6490
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Battery.......again!!!

Post by dans6490 » Fri Sep 22, 2017 12:00 pm

ph001 wrote: Fri Sep 22, 2017 11:38 am CTEK MXS 5.0. I wouldn't even consider anything else. Where abouts in the country are you?
Just bought one with delivery tomorrow. Fingers crossed it works!!!

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Havard
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Battery.......again!!!

Post by Havard » Fri Sep 22, 2017 5:14 pm

dans6490 wrote: Fri Sep 22, 2017 12:00 pm
ph001 wrote: Fri Sep 22, 2017 11:38 am CTEK MXS 5.0. I wouldn't even consider anything else. Where abouts in the country are you?
Just bought one with delivery tomorrow. Fingers crossed it works!!!
You won't go wrong with the Ctek. I have two at home.

Even if you have a slow drain, keeping the battery at optimum capacity can't be a bad thing while not in use.

H.
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Battery.......again!!!

Post by Mike6 » Fri Sep 22, 2017 6:00 pm

A bit late to join this discussion but in the past I have found that immobilised cars, not used for some time can suffer battery drain. I am lucky in that my car is always garage kept with a Ctek type charger but I always leave the car doors unlocked to save any drain. Obviously you cannot do this if car kept outside but worth a try if you have a secure garage.

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Havard
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Battery.......again!!!

Post by Havard » Fri Sep 22, 2017 8:34 pm

Mike6 wrote: Fri Sep 22, 2017 6:00 pm A bit late to join this discussion but in the past I have found that immobilised cars, not used for some time can suffer battery drain. I am lucky in that my car is always garage kept with a Ctek type charger but I always leave the car doors unlocked to save any drain. Obviously you cannot do this if car kept outside but worth a try if you have a secure garage.
I have done this occasionally but I wonder what the insurance would say if they found that the car wasn't locked. Ours are in an alarmed garage but if it was just a door lock between the car and some pesky thieves, I wouldn't be taking the chance.

Even with the car immobilised the drain must be minimal whist on charge. Probably puts another 5 mins on what takes a few hours.

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Battery.......again!!!

Post by markalp » Sun Sep 24, 2017 12:13 am

dans6490 wrote: Fri Sep 22, 2017 9:39 am After going out to start my zed a few weeks back, the battery was dead. Jump start, drive, next day the same.

So I changed the battery and again, all was well for a while but now I'm back in the same situation. I've taken it to a auto electrician who couldn't find any drain issues.

However, he did say he thinks my new battery is too small. It's a Bosch s3 005 type 027.

I have an ashtray plug in, showing the voltage and at rest it now says 11.2v. On start up it shows 13.9v.

Do you think the battery could be too small and doesn't have the power to start the engine?

This is driving me nuts now as I can't drive the car as even after jump-starting, I can't be sure it will start for the return journey!! :headbang:
Hi, until your auto elec can find the drain I can reccomend one of these https://www.amazon.co.uk/Suaoki-Starter ... pack&psc=1 the wifes 1.8 Civic is only ever used for short trips here and there and as such the battery gets a hammering.

Charged it up once in May, and have jump started the car twice with it over the summer after it had been standing for a while, and even after using it twice it still has over half a charge left on it.
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Battery.......again!!!

Post by G600 » Sun Sep 24, 2017 6:24 pm

Do you own a multimeter? If so and you know how to use it you can check if there's a drain or not.
E85 3.0

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Battery.......again!!!

Post by dans6490 » Mon Sep 25, 2017 2:28 pm

G600 wrote: Sun Sep 24, 2017 6:24 pm Do you own a multimeter? If so and you know how to use it you can check if there's a drain or not.
No but I did think about getting one. Would it show if the alternator output is too low

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Battery.......again!!!

Post by G600 » Mon Sep 25, 2017 3:04 pm

dans6490 wrote: Mon Sep 25, 2017 2:28 pm
G600 wrote: Sun Sep 24, 2017 6:24 pm Do you own a multimeter? If so and you know how to use it you can check if there's a drain or not.
No but I did think about getting one. Would it show if the alternator output is too low
Yes
https://haynes.com/en-gb/tips-tutorials ... ar-battery
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Battery.......again!!!

Post by thanatu55 » Mon Sep 25, 2017 4:51 pm

I have this exact same problem!

If I leave it more than a day I can guarantee it will be flat the next time I sit in it. Charge it to full, leave a day, flat again. It's driving (or stalling) me nuts! I also have Gap-tech, bulbs all changed to LED, headlight conversion, I don't get out in it a lot... I can think of numerous 'possibilities', but regardless it's a complete ball ache beginning every journey with a flat battery.
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Battery.......again!!!

Post by Ducklakeview » Mon Sep 25, 2017 4:59 pm

I've previously had a forum members car here with a similar problem, can't remember who's it was though!

Anyway, I traced it to a non working cd changer that a previous auto spark had ignored as he thought it s dead. It says drawing half an amp or so when after the car had gone to sleep. Turned it that someone had previously botched the loom, and the changer's ground had been cut, this caused it to drain through another module, which was the nav.

Replacing the ground connection cured it and got the changer working again.

If one of the diodes in the alternator rectifier pack fails, this can also cause similar problems.

Mike

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