AH FabricationsSky Insurance
Results 1 to 8 of 8
  1. #1
    _G_
    _G_'s Avatar
    4th Gear

    Status
    Offline
    Join Date
    Jul 2011
    Posts
    869

    Blue-white powder on negative battery terminal...

    and foam to boot... is this dangerous?

    can I just clean it with baking soda and water OR do I need to use my battery charger to desulph the battery?

    Strange! never had this before!

    Thanks

    G-Man

  2. # ADS
    ADS
    Join Date
    Always
    Posts
    Many
     
  3. #2
    5th Gear

    Status
    Offline
    Join Date
    Apr 2012
    Location
    N. Wales, LL22
    Posts
    1,224
    hot water to clean it up, how old is the battery?
    VCDS in North Wales
    2007 A6 3.0TDi S-Line Le Mans Avant , adaptive xenon lights, sunroof, privacy glass, towbar, led rears & randomly rear seat airbags
    1999 Honda S2000 , mcb low milage jap import, fully bushed, mugen exhaust <<< for sale! <<<
    2001 Passat TDi 130 Sport < sold!! http://img.photobucket.com/albums/v343/Ste_Nova/Passat/PB140007s.jpg

  4. #3
    jojo's Avatar
    S3 Drift King!

    Status
    Offline
    Join Date
    Sep 2003
    Location
    Solihull, Midlands
    Posts
    24,840
    Quote Originally Posted by Ste_Nova View Post
    hot water to clean it up, how old is the battery?
    This, boil a kettle of water and pour over. I would say the battery is probably due for replacement soon.


    99' Audi S3(APY) - Brilliant Black Click>>>Going Sideways vid!
    You've got to have a laugh!



  5. #4
    _G_
    _G_'s Avatar
    4th Gear

    Status
    Offline
    Join Date
    Jul 2011
    Posts
    869
    It's about a year old now. Read up around this and it happens commonly with lead-acid batteries when they have been subjected to excess heat or under-charged. Could possibly say it was under-charged and struggled feeding the hungry onboard accessories because it is only a 72Ah and I know that the official recommended is 74Ah but doubt this...

    Apparently it can be desulphated as the sulphur is not too bad on this battery... the common misconception is that it is dead or going to die soon but I am going to try this first: CTEK MXS 5.0 battery charger review | Auto Express

    Wish me luck... I don't fancy forking out £80+ for a new battery... and this time I will cover the terminals with vaseline or something. Cheers.

  6. #5
    _G_
    _G_'s Avatar
    4th Gear

    Status
    Offline
    Join Date
    Jul 2011
    Posts
    869
    Update... the CTEK did nowt. I thought powder sulfation could be reversed. The more I am reading up around this apparently sulfation is irreversible once it has set in. This is very poor for a top of the range Exide battery. Unlucky! It is not holding charge but will get me through to the weekend and I will lobb in a Bosch HSB010.. the mother of all batteries.

  7. #6
    jojo's Avatar
    S3 Drift King!

    Status
    Offline
    Join Date
    Sep 2003
    Location
    Solihull, Midlands
    Posts
    24,840
    Quote Originally Posted by The_Drunken_Fool View Post
    Update... the CTEK did nowt. I thought powder sulfation could be reversed. The more I am reading up around this apparently sulfation is irreversible once it has set in. This is very poor for a top of the range Exide battery. Unlucky! It is not holding charge but will get me through to the weekend and I will lobb in a Bosch HSB010.. the mother of all batteries.
    I'm using an Exide battery, guess I better check it regularly.


    99' Audi S3(APY) - Brilliant Black Click>>>Going Sideways vid!
    You've got to have a laugh!



  8. #7
    _G_
    _G_'s Avatar
    4th Gear

    Status
    Offline
    Join Date
    Jul 2011
    Posts
    869
    It's a common thing for lead-acid batteries... they need maintaining and I did not know this coming from 10+ years of using calcium batteries and always being an advocate for calc. They just need to be kept fully charged and conditioned about once a year. In hindsight (I hate that word) I probably did kill it quicker... because I always have the aircon on/climate control on. Sometimes I make a short journey in the day 1 mile to a different location and I guess because it is a short journey it must be killing it... I do this about once a day... then my other theory is... sitting in the car for about 30 minutes in the mornings and the hazard light switch takes 30 minutes to time out... x 5 a week and that must be a drain?!

  9. #8
    CHEZ's Avatar
    moderately amusing

    Status
    Offline
    Join Date
    Jul 2011
    Location
    the living room
    Posts
    3,594
    just remember to copper grease the terminals after fitting! sorted! wont happen again!
    .................................................. ..........


 

 

Similar Threads

  1. Blue/White smoke on startup
    By steady jay in forum A4/S4 forum(B5 Chassis)
    Replies: 3
    Last Post: 16th October 2011, 13:35

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Single Sign On provided by vBSSO

Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

Content Relevant URLs by vBSEO