Saxo 1.1 battery not holding charge???

  1. Newbie Joined: Dec 2010 Posts: 5
    #1
    Orite lads,
    Was wondering if anyone could help as am stuck, av got a x reg 1.1 saxo with a flat battery, I've replaced the alternator the other day as it was knackered, the car will jump start and run no problem but when I leave it overnight the batterys flat in the morning?? Av tested the alternator and it's charging the battery but there must be something draining the battery
    It's just bog standard so can't be much
    Any help much appreciated
    Thanks
  2. L-plater Joined: Oct 2010 Northwich Posts: 38 Vts Freelander
    #2
    Need a new battery!
  3. Established Member Joined: Oct 2010 Rednal Posts: 1943 Vauxhall Vectra VW Golf Mk4 Honda Prelude
    #3
    Sounds like a bad earth to me mate, have to get it checked out or do it youself if ur mechanicaly/electricaly minded
  4. Newbie Joined: Dec 2010 Posts: 5
    #4
    Was thinking it could be battery especially with this cold weather? What earth could it be mate?
    Cheers
  5. Established Member Joined: Oct 2010 Rednal Posts: 1943 Vauxhall Vectra VW Golf Mk4 Honda Prelude
    #5
    No idea, its a case of gettin the multi-meter out and have a look.
    And could be the battery have u tested the battery? Static voltage, check the electrolyte using a hydrometer?
  6. Established Member Joined: Feb 2009 ★ West / North Yorkshire ★ Posts: 1653
    #6
    Shit batteries can't cope with shit weather.
  7. Established Member Joined: Mar 2010 Cupar Fife Posts: 1712 1600 16v VTS 1600 8v VTR 1400 16v Clio Sport
    #7
    u got amplifiers in ur car?
  8. Newbie Joined: Dec 2010 Posts: 5
    #8
    Was going to get batt checked the night after work, no mate a haven't, just bog standard
  9. Saxperience Post Whore Joined: Oct 2009 Basildon And Corringham, Essex Posts: 5179 MK1 Focus RS, Discovery TD5, Renault Trafic 2.0
    #9
    The cold absolutely kills batteries, Although it's not actually the cold.
    It's heat that kills batteries, because batteries are a chemical reaction when they get hot, due to a malfunctioning alternator or just in the summer, that reaction happens faster and deteriorates the battery. Then when it gets cold and the power output is reduced, because the cold causes the chemical reaction to slow down then you'll notice a loss in power, or it'll go flat.

    And if it's left flat for too long the battery goes through a proses where the solpher in the acid attaches itself to the plates and if it's left long enough the battery becomes Solphated and can no longer be charged. Or it will not hold its charge for very long.
  10. Newbie Joined: Dec 2010 Posts: 5
    #10
    Had battery tested, 3 cells have gone, so av bought a new one and the car started straight away but will find out the tomorrow if it stays charged
  11. Newbie Joined: Dec 2010 Posts: 5
    #11
    Well... It started no problem this morning so I drove it to the garage(2mile away) and it drove mint .now... When I picked it up a had to jump start it and now the battery light is flickering and once the cars turned off it'll not start without a jump??
    Could this be the alternator or something else??
    Any more help much appreciated
  12. Infrequent Poster Joined: May 2010 Halifax Posts: 107 Silver Mk2 Vts.
    #12
    Quote:
    Originally Posted by Saxo100 View Post
    Well... It started no problem this morning so I drove it to the garage(2mile away) and it drove mint .now... When I picked it up a had to jump start it and now the battery light is flickering and once the cars turned off it'll not start without a jump??
    Could this be the alternator or something else??
    Any more help much appreciated
    Could be the wire going from the alternator to the battary, there should be a couple of wires attatched to the side of the alternator, try trace them and see if theres a break in them or there not connected mate.