Omega Owners Forum

Please login or register.

Login with username, password and session length
Advanced search  

News:

Welcome to OOF

Pages: [1] 2  All   Go Down

Author Topic: battery drain  (Read 2518 times)

0 Members and 1 Guest are viewing this topic.

Andy B

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • Bury Lancs
  • Posts: 39483
    • ML350 TDM SmartRoadster
    • View Profile
battery drain
« on: 07 January 2014, 14:02:26 »

Not an Omega, but a Fiat Seicento. Re the Halfords battery thread, my daughter's car has had some starting problems. The battery checks out OK .... two different testers.

The car's using 185mA with nothing running at all ... key in my pocket, doors closed  (boot light goes off  ;)), no alarm fitted. Any opinions as to whether that's too high or not  :-\  :-\ before I start pulling fuses.

TIA
Logged

Marks DTM Calib

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • West Bridgford
  • Posts: 33834
  • Git!
    • View Profile
Re: battery drain
« Reply #1 on: 07 January 2014, 14:05:14 »

Yes, should be a tenth of that
Logged

Andy B

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • Bury Lancs
  • Posts: 39483
    • ML350 TDM SmartRoadster
    • View Profile
Re: battery drain
« Reply #2 on: 07 January 2014, 14:13:22 »

Yes, should be a tenth of that

Thanks Mark. When I first connect the multimeter it reads around 50 & then goes straight to 180 or so.

I'll start pulling fuses then ............ I wonder where the fuse box is  ;D  ;D  ;D
Logged

Andy B

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • Bury Lancs
  • Posts: 39483
    • ML350 TDM SmartRoadster
    • View Profile
Re: battery drain
« Reply #3 on: 07 January 2014, 14:48:31 »

Pulled fuses one by one & lo & behold it's the radio (Jamie's favourite make  ::))

When I disconnected the battery to put my meter in line I'd not realised that just powering it up had turned the radio on. Pressing 'off' reduced the drain to about 80mA but pressing & holding 'off' shut the radio down completely. Result was that the drain went to 7mA  :y

This has started since I modified the wiring to the radio such that the ignition feed was supplied via the ignition live of the neighbouring electric window switch. All wiring back to original.

I'll inform her of the 'fault'  ;)  ;)
Logged

chrisgixer

  • Guest
Re: battery drain
« Reply #4 on: 07 January 2014, 15:29:54 »

Yes these cars are all fine until they encounter their owners ;D
Logged

Bigron

  • Omega Baron
  • *****
  • Offline Offline
  • Gender: Male
  • Witham, Essex
  • Posts: 4808
    • Omega 2.6 V6 Auto '51 Reg
    • View Profile
Re: battery drain
« Reply #5 on: 07 January 2014, 17:02:47 »

I had this cunning plan (been speaking to Baldrick, you see...), in which I would charge my battery via the rear seat cigarette lighter socket, with a secondary use as system keep-alive for if I needed to remove the main battery.
All worked well for a while and after a few minutes it stopped accepting charge. Does that socket disconnect after a while? I thought that it was permanently live.     ???

Ron.
Logged

Andy B

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • Bury Lancs
  • Posts: 39483
    • ML350 TDM SmartRoadster
    • View Profile
Re: battery drain
« Reply #6 on: 07 January 2014, 17:37:51 »

..... Does that socket disconnect after a while? I thought that it was permanently live.     ???

Ron.

Apparently so on later Omegas  ;) Both on earlier cars is just ignition live.  :y
Logged

Bigron

  • Omega Baron
  • *****
  • Offline Offline
  • Gender: Male
  • Witham, Essex
  • Posts: 4808
    • Omega 2.6 V6 Auto '51 Reg
    • View Profile
Re: battery drain
« Reply #7 on: 07 January 2014, 17:44:00 »

Thanks Andy. It is odd, though, when the legend on the dust cover states it has 10 Amp capability - why, therefore, would it disconnect after a few minutes and leave you powerless?
Some features on Omegas are very clever and well thought out.......

Ron.
Logged

Andy B

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • Bury Lancs
  • Posts: 39483
    • ML350 TDM SmartRoadster
    • View Profile
Re: battery drain
« Reply #8 on: 07 January 2014, 17:47:58 »

Thanks Andy. It is odd, though, when the legend on the dust cover states it has 10 Amp capability - why, therefore, would it disconnect after a few minutes and leave you powerless?
Some features on Omegas are very clever and well thought out.......

Ron.

If 185mA will drain a battery ................. how long would your battery last if you were draining it by 10Amps?  ;)  ;)  ;) (not very  ::))
Logged

Bigron

  • Omega Baron
  • *****
  • Offline Offline
  • Gender: Male
  • Witham, Essex
  • Posts: 4808
    • Omega 2.6 V6 Auto '51 Reg
    • View Profile
Re: battery drain
« Reply #9 on: 07 January 2014, 21:37:35 »

Good point, but I wanted to put current INTO the socket, for charging purposes, not take it out! If I wanted to use it for current supply, e.g. a tyre pump, that would not drain the battery in the time needed to do the job, but the socket would time out before I had finished - not helpful........

Ron.
Logged

Entwood

  • Omega Queen
  • *****
  • Offline Offline
  • Gender: Male
  • North Wiltshire
  • Posts: 19566
  • My Old 3.2 V6 Elite (LPG)
    • Audi A6 Allroad 3.0 DTI
    • View Profile
Re: battery drain
« Reply #10 on: 07 January 2014, 21:45:23 »

Good point, but I wanted to put current INTO the socket, for charging purposes, not take it out! If I wanted to use it for current supply, e.g. a tyre pump, that would not drain the battery in the time needed to do the job, but the socket would time out before I had finished - not helpful........

Ron.

close door, reopen .. timer restarts  .. :) do it all the time when changing the tyre pressures for towing/solo .. :)
Logged

Bigron

  • Omega Baron
  • *****
  • Offline Offline
  • Gender: Male
  • Witham, Essex
  • Posts: 4808
    • Omega 2.6 V6 Auto '51 Reg
    • View Profile
Re: battery drain
« Reply #11 on: 07 January 2014, 21:58:17 »

Thanks for that; not too useful a technique if I am charging overnight, though!
I don't suppose you know how long the time delay is?

Ron.
Logged

Entwood

  • Omega Queen
  • *****
  • Offline Offline
  • Gender: Male
  • North Wiltshire
  • Posts: 19566
  • My Old 3.2 V6 Elite (LPG)
    • Audi A6 Allroad 3.0 DTI
    • View Profile
Re: battery drain
« Reply #12 on: 07 January 2014, 21:59:54 »

Thanks for that; not too useful a technique if I am charging overnight, though!
I don't suppose you know how long the time delay is?

Ron.

IIRC its about 6 minutes...

Edit

15 minutes

http://homepage.ntlworld.com/andrew.reynolds983/Manuals/Omega2002Manual.pdf

Page 75 column 3
« Last Edit: 07 January 2014, 22:04:45 by Entwood »
Logged

Andy B

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • Bury Lancs
  • Posts: 39483
    • ML350 TDM SmartRoadster
    • View Profile
Re: battery drain
« Reply #13 on: 07 January 2014, 22:02:04 »

Good point, but I wanted to put current INTO the socket, for charging purposes, not take it out! If I wanted to use it for current supply, e.g. a tyre pump, that would not drain the battery in the time needed to do the job, but the socket would time out before I had finished - not helpful........

Ron.

Sorry .... mis-understood what you were doing.  ;)

You could always fit your own fused permanent supply to A N Other ciggy type socket tat you could hide somewhere ..... under the dash maybe or in the glove box
« Last Edit: 07 January 2014, 22:05:07 by Andy B »
Logged

Bigron

  • Omega Baron
  • *****
  • Offline Offline
  • Gender: Male
  • Witham, Essex
  • Posts: 4808
    • Omega 2.6 V6 Auto '51 Reg
    • View Profile
Re: battery drain
« Reply #14 on: 07 January 2014, 22:04:23 »

No need for apologies anywhere, I have had brilliant help, as usual.
My grateful thanks to all.

Ron.
Logged
Pages: [1] 2  All   Go Up
 

Page created in 0.043 seconds with 19 queries.