Electrickery for camping - Page 19




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  1. #361
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    Default Re: Electrickery for camping

    Jip, and I love the real-time status. At that moment the system was breaking even and the battery only received charging current when the fridges switched off. Wet towels over the fridges and parking in the shade helped quite a bit..

    Hilux 3.0 D4D "Goldilocks" - Rigged for overlanding
    ORRA Callsign: X130
    Passionate about alternative energy

  2. #362
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    Default Re: Electrickery for camping

    Quote Originally Posted by Subok View Post

    My setup, at full tilt in Caprivi Oct this year. Outside temp 38°C, 40L and 35L fridges with 180W glass panels keeping the HCDP rather busy. Top left is V/A from solar array to charger, bottom left V/A output to battery and the other is V/A consumed by loads.
    That is seriously cool. I see those meters are sold by 4x4direct but wondered if it would not draw unnecessary power. I assume the switches you have there are to switch the meters on and off.

    Will the meter reduce the current supplied to and from the battery? I assume the meter has to be connected in line?

  3. #363
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    Default Re: Electrickery for camping

    Yes the switces are to switch off the meters when not required.
    The meters themselves have low consumption and I think the light in the switch itself draws more current.
    The meters all have shunts and are connected in line 'sort of'.
    It was quite a mission to safely wire up this system. The shunts are quite bulky. There may be other meters with less wiring required.

    Hilux 3.0 D4D "Goldilocks" - Rigged for overlanding
    ORRA Callsign: X130
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  5. #364
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    Default Re: Electrickery for camping

    You could also use watt meters
    really easy to setup , no shunts to fiddle with
    Pos and Neg in an out, also fairly accurate in my tests

    http://www.elexco.co.za/index.php?ro...product_id=442

  6. #365
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    Default Re: Electrickery for camping

    Name:  BATTERY SETUP.jpg
Views: 126
Size:  65.4 KB

    Ok so I have a new bakkie and need to install a new dual battery system.

    So I bought a HCDP 30amp 12v dual charger with which I want to charge 2 x 100ah deep cycle batteries.

    Above is a simple (bad) diagram of what I intend to do.

    Just a few questions.

    1. As I have read through the thread I have surmised that the distance between your dc/dc charger and aux batteries should be as short as possible. Well with one of the batteries located in the back of the caravan and one in the back of the bakkie this is not possible.
    Will 10mm2 cable between dc/dc charger and back of bakkie be thick enough?
    The caravan already has 16mm2 cable from front to back where battery is and has its own solar regulator ect.
    Is this tottaly impossible to do?

    2. On the dc/dc charger there is a port for a signal wire from ignition of bakkie which seems to be a "preferred" option. Alternatively one can short it via the positive port of main battery. What is the difference is the preferred option really necessary?

    3. Is it better to run all the appliances (fridge, lights, compressor ect.) from the load port of the dc/dc charger or straight of the aux battery? Should one split them? thus run some through regulator and some not?

    Thanks

  7. #366
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    Default Re: Electrickery for camping

    You can probably make it work, but I think you should have bought 2 x 12A HCDP controllers. Let's hear what the gurus say?

    Hilux 3.0 D4D "Goldilocks" - Rigged for overlanding
    ORRA Callsign: X130
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  8. #367
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    Default Re: Electrickery for camping

    Someone who knows own more than me may give more accurate advice, but I think you'll be fine.
    I do suggest that you run your fridges et al from the load port on the charger.
    It basically splits the work the charger does between the batteries and the appliances. In doing good so it can push the full 30amps into the batteries while only supplying amps as needed for the fridge and the rest of the load.
    I reckon your cable thicknesses are fine. And the 16mm valuables to the caravan is sufficient. Your charger will be in the back, so the distance between it and the caravan battery is not that long.
    That 30a charger is a monster.

  9. #368
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    Default Re: Electrickery for camping

    I agree with PhlippieV.
    Those 16mm˛ cables to the back should do a fine job of keeping battery #3 in shape.
    Eggie.

    What this country needs are more unemployed politicians.
    Especially those who claim they need R4 Billion planes for own use.
    - Edward Langley.

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