Trying to save a leisure battery

Discussion in 'Mech Tech' started by volkswombat, Mar 11, 2017.

  1. As my van was laid up for nearly six months I'd completely forgotten about the leisure battery which is now flat.
    Just bought a ctek mxs10, am I better trying the recondition setting, or just the standard charge, to revive it?

    Really I'm expecting to buy a new battery but thought this worth a try? Or is a flattened LB goosed?
     
  2. davidoft

    davidoft Sponsor

    Put it on recondition, if it's completely flat you will need to stick some juice into it via jump leads from another battery
     
  3. It's at 1.3 V ?
     
  4. davidoft

    davidoft Sponsor

    On the charger ?
     
  5. No , just on its own, haven't connected it to anything yet, just removed from van
     
  6. davidoft

    davidoft Sponsor

    Should work then
     
  7. What , stick it on recondition you mean?
     
  8. May of found the answer ! The charger isn't recognising that the battery is connected so I guess it's too low a voltage?

    So hook it up to starter battery while engine is running to put some juice in yeah?
     
    nicktuft and theBusmonkey like this.
  9. mikedjames

    mikedjames Supporter

    It is almost certainly fookrd.
    If there is a big bang when you connect it to the starter battery you might be in luck. But if it just sits there its sulphated up high resistance and dead.
     
  10. davidoft

    davidoft Sponsor

    Yeah give it 10-15 mins then straight on charge, on recondition
     
  11. Get a new one.
     
  12. Got some volts in it from the car, now on recondition charge, will see how it goes.
     
    davidoft likes this.
  13. davidoft

    davidoft Sponsor

    Why, there may be nothing wrong with it, 24hrs on the battery charger cost next to nothing and if it charges up he's £100 better off
     
    nicktuft and matty like this.
  14. theBusmonkey

    theBusmonkey Sponsor

    Good shout. The cteks need to be able to sense a voltage before they work:thumbsup:
     
  15. Dazza

    Dazza Eyebrow not high brow

    If I've ever run mine flat - I switch the Ctek off, start the engine and then switch the ctek back on and it normally kicks it back into life
     
    nicktuft and davidoft like this.
  16. Was it you that fitted a ctek in the engine bay?
    I'm planning to do same myself, but wondering.....is it just plugged in in the van? How to get plug from engine bay to interior?
    Or better/other ways of fitting it?
     
  17. Pylons :thumbsup:
     
  18. theBusmonkey

    theBusmonkey Sponsor

    Twas. It's on the side of the spare wheel well.
    You can drill a hole through by the side of the well, looking from inside the van rearwards, just to the right of the well.
    I grommeted the holes & fed conduit through to carry the cable & cut the plug off & wired it straight into the consumer unit:thumbsup:
    here ya go
    20032014156.jpg 20032014157.jpg
     
    volkswombat likes this.
  19. Ctek finished the recondition on leisure battery yesterday, have checked the voltage on battery a few times since and it's at a steady 12.8v so hopefully that means its ok?
     
    chad and davidoft like this.
  20. nicktuft

    nicktuft Supporter

    Hopefully it will be it, keep the charger on trickle/ float with the mains connected whenever possible. It's not fair to let batteries starve...
     
    3901mick likes this.

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