Another dead battery

Discussion in 'Motorhome Chat' started by beachcaster, Dec 21, 2011.

  1. beachcaster

    beachcaster Read Only Funster

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    I keep my 2009 Autotrail plugged in all the time
    and I think that if the control panel displays "Leisure battery" then that gets charged.and if you change it to "Vehicle battery" then that is what gets charged.

    I went to start the van over a week ago and it was dead.I changed the control panel charger round to vehicle battery left it for 2 days....and away it went.I let it run for half and hour.

    Today it was totally dead again with a reading from the control panel of
    5.7v (poor)....and the same with a multimeter. The leisure battery is 13.7 (good)

    I stuck my omnimate 3 ( conditioner/charger) on the battery but is it a goner ?
    Or can it be recharged? What do you think ?

    Im a bit dumb on this sort of thing:Smile:

    barry
     
  2. Jaws

    Jaws Funster Life Member

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    If the charger you are using is an optimate be careful.. I will say nothing more...

    If you have an old fashioned charger, stick that on for a couple of hours and then put the Optimate on ( but do not LEAVE it on .. like I said.. I will say nothing more on that )

    Go on to the CAK tanks site and get one of their little battery management gadgets for about £30.00.. takes 10 to 15 minutes to fit
    Either on hookup ( EHU ) or if you have solar panels fitted, it will top up the van battery once the habitat battery is fully charged.. Worth every penny !
     
  3. pappajohn

    pappajohn Funster Life Member

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    at 5.7v I wouldnt even bother connecting a charger.

    10.5v is considered dead...at 5.7v it is mummified and very, very little chance of recovery.

    it may charge but will never hold a charge.

     

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  4. gozomike

    gozomike Funster Life Member Life Member

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    Sounds Knackered (with a very big K) to me.:Eeek:
     
  5. Snowbird

    Snowbird Funster Life Member

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    Agree with Papajohn. If its allowed to drop below 10.5 it will NEVER be any good.
     
  6. beachcaster

    beachcaster Read Only Funster

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    OK .thanks for that everyone

    Ill take it out and replace it :)

    jaws you have to tell me what is wrong with an Optimate 3:Smile:

    barry
     
  7. friar tuck

    friar tuck Funster

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    likewise jaws re the optimate as my mh i permanently connected to one at the storage yard,youve got me worried.:Sad: pm me if you dont want it on the forum.

    Tony
     
  8. beachcaster

    beachcaster Read Only Funster

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    Yes please pm me I have used one for quite a while and you have me worried now.

    Took my battery into a loval specialist....who said before I bought another which he has in stock.......he would try to revive it....but like you guys
    said dont hold out too much hope.

    thanks

    barry
     
  9. beachcaster

    beachcaster Read Only Funster

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    Just as an aside................If you left your lights on on a new battery
    and ran it flat.....what would the reading be then ?

    2nd question.....if my mhome is on permanent hookup so the mains socket are live...............is there a managment/charging system I could use to plug into a mains socket to keep the vehicle battery in good condition? as my vehicle battery is in font of the passenger seat. This solution would not need any wiring from me as I am an electical bufoon. The vehicle battery is a big 110amp jobby.



    barry
     
  10. Jaws

    Jaws Funster Life Member

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    Couple of choices Barry

    If you want to have something permanently fitted, either a battery management unit from VanBitz or CAK Tanks ( both are easy to fit and work well )

    If you want to just use a plug in jobby ( which an awful lot of people do ) that will cycle, maintain and charge as needed, drop me a mail as I keep em in stock and will do one at cost for you mate ( About £24 from memory )

    Oh,, new battery .. lights on....

    It is actually possible to completely kill a brand new battery like that.. The plates will start to sulphate and when recharged they can warp

    If lights are left on long enough the battery could go down to, effectively, zero ( though there is always SOMETHING measurable even if it is millivolts )
     
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