How often do you top up your batteries

Discussion in 'Motorhome Chat' started by CJB, Sep 19, 2016.

  1. CJB

    CJB Funster

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    Hi,

    I have a couple of banner batteries in a bank, however they seem to need topping up quiet regularly although I never really discharge the batteries and I thought discharge cycles was the main reason water in the cells would go down.

    Any idea how often they should need topping up?
     
  2. PhilandMena

    PhilandMena Funster

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    I too have newish Banner batteries (about 1 year old now) and have asked the same question. I was advised to check them once a year and checked them after 6 months to find they did not need topping up at all. I will probably check again around Christmas time and top up if required.
    Sounds to me your on top of it through.
     
  3. Stealaway

    Stealaway Funster

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    Are you over filling them and they are settling to there optimum level?
     
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  4. GJH

    GJH Funster Life Member

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    Our battery is checked during the habitation service and I usually check it around about half way between services.
    It's a Banner which was on the van when we bought it in February 2012 so I don't know how old it is. It is kept topped up by the solar panel.
    I normally just have to put a dribble of water in each cell.
     
  5. Figaro

    Figaro Funster

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    I didn't know I should be checking, assumed they were sealed. Better check :rolleyes:
     
  6. mitzimad

    mitzimad Funster

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    i check my trojans every three months and they do usually need a little bit
     
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  7. hilldweller

    hilldweller Funster Life Member

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    The term "boiled dry" is used to describe a battery cooked by a faulty charger.
     
  8. Forestboy

    Forestboy Funster Life Member

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    3 forktruck batteries on mine with a big Ctek keeping em in good condition. Check water at least three times a year and they usually take a drop but do get some serious abuse.;)
     
  9. JockandRita

    JockandRita Funster Life Member

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    Similar routine here too with our Trojans (y)

    Cheers,

    Jock. :)
     
  10. pappajohn

    pappajohn Funster Life Member

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    Cycling batteries shouldnt really have any bearing on electrolyte levels but overcharging at too high a voltage does.
    14.4v is a safe bulk charge (bang volts in quickly) voltage, 13.6v safe absorption (final charge)voltage and 15v will start them gqssing and using electrolyte (overcharging)

    If it regularly needs topping up, every month or so, either your batteries are faulty or your charger.

    My last set gassed badly, took over 1ltr to top each one up (4 batteries) and an overnight charge.
    Next day each showed 12.6v an hour after charger disconnected.
    Two hours later, stood on the bench, each showed 7.5v
    Nowt wrong with the charger but the batteries were totally knackered.
     
  11. Figaro

    Figaro Funster

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    My batteries are under the seats and difficult to get at. What do they have, little screw plugs that undo ?
    I`m not sure I`d be able to get in to visually check fluid level so what do others do ?
    I believe the seats have to be removed to access batteries, they are ISRI ? seats
     
  12. Scattycat

    Scattycat Funster

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    Oh bu**er!
    Now I've got something else to worry about
     
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  13. tonyidle

    tonyidle Funster

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    Same here. ISRI seats weigh a tonne so I release the four screws then slide the seat forward until it topples onto the steering wheel. There's just enough room to remove the cell caps & if necessary top-up. Do disconnect the negative lead before topping up - there's not a lot of room to work.
     
  14. funflair

    funflair Funster Life Member

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    GEL batteries, never checked them 10 years old now and still OK, but no point checking as you can't.

    Martin
     
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  15. Yorick

    Yorick Funster

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    I thought all batteries nowadays were sealed. Oops, never checked mine.

    Lucas jobbies. Tap water ok?
     
  16. Bobby22

    Bobby22 Funster

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    I wouldnT use tap water i Lanzarote in i would boil it first. Too many minerals in the water in the Canaries
     
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  17. Wildbill

    Wildbill Funster

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    boyild rain water is fine but distilled deionized water is better
     
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  18. Yorick

    Yorick Funster

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    Surely boiling doesn't get rid of minerals?

    Probably better to use bottled water ?
     
  19. Sidney

    Sidney Funster

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    Distilled water? Just defrost your freezer, break off a few bits of ice from the inside for pure H2O (be sure to remove any peas)
     
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  20. Bobby22

    Bobby22 Funster

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    They stick to the side of your kettle just like back home in hard water areas.

    Here in Scotland we can use it straight from the tap as it is a soft water here.
    (Learned on a training course for battery powered scissor lifts.)
     
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