Zig unit draining Battery Help please

Discussion in 'Tech/Mech General' started by GaryH61, Feb 27, 2015.

  1. GaryH61

    GaryH61 Funster

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    I don't have a leisure battery, yet, and the van (engine battery) is relatively new. However, on the ZIG distribution panel there is a 12v isolation switch as well as a pump and fridge switch. With the pump and fridge switches off and the Propex heater 'stat off, if I leave the 12v isolation switch on it will flatten the Van battery.

    How can this be if lights off fridge off, pump not running and propex stat off. what other 'residual current can be being drawn from battery ?
     
  2. f6c

    f6c Funster

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    Sorry Gary Cannot Help:(
     
  3. DavidG58

    DavidG58 Funster

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    Logic would say it cant be drawing anything, like you already think

    Has it worked like this before, ie without a separate habitation battery?
     
  4. mitzimad

    mitzimad Funster

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    over how long is it going flat many modern vans drain the battery in a couple of weeks due to alarms and radios that draw current all the time
     
  5. Lenny HB

    Lenny HB Funster

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    Also with only one battery the fridge & heater's electronics will be additional drain.
    Not practical to run a modern vehicle without a separate leisure battery.
     
  6. Tootles

    Tootles Funster

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    Zig units have long been accepted for throwing up faults of various types, and are pretty much un-repairable, (to my personal knowledge and cost). :(
     
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  7. scotjimland

    scotjimland Funster Life Member

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    A Zig unit is basically a charger and a 12v power supply unit .. like any other power unit, leave it powered up and it will be drawing a small current.. no matter how small.. it will eventually drain the battery..

    You could test this by measuring the mA being drawn when nothing is being used.. the solution is to isolate when not required..
     
  8. karl c

    karl c Funster

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    if you have an amp meter put it in line on the live or + that will show if there is some thing pulling it down.
    if there your showing a draw you can pull any fuse one by one till you find what is pulling your battery down.
    the meter on the panel could be pulling a small amps over time.
     
  9. Lenny HB

    Lenny HB Funster

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    Zig used to make just 12v distribution panels as well as chargers I was assuming that what it is in this case as no 2nd battery.
     
  10. scotjimland

    scotjimland Funster Life Member

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    yes , that may be the case .. not enough info from the OP
     
  11. GaryH61

    GaryH61 Funster

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    Only takes a couple of days
     
  12. GaryH61

    GaryH61 Funster

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    were 20 year old (Van years) circa 1995 not that modern
     
  13. GaryH61

    GaryH61 Funster

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    Will give it a go and see what draining = thanks:smiley:
     
  14. pappajohn

    pappajohn Funster Life Member

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    I would expect a couple of weeks at least.
    radio memory and alarm will put a load on the battery....radio memory may be 50ma
    depending on make and the alarm (if fitted) may be another 50ma...just guessing.

    100mah is 1amp every 10 hrs so in a 24hr day thats just under 2.5 amps.
    80ah starter battery discharged to 50% = 16 days.....and at 50% discharged i doubt it would start the engine anyway.

    Sounds very much like your engine battery is on its last legs if it only lasts two days
     
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