Prado’s cargo bay AC220V/100W 2 pin plug point




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  1. #1
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    Default Prado’s cargo bay AC220V/100W 2 pin plug point

    Has anyone tried this, or thought of trying it - I have and will provide feedback...

    My 2017 Prado has a 2 pin port in the cargo bay - I’ve purchased a SnoMaster 42 fridge which I’ve hooked up to a deep cycle car battery which is hooked up to a CTEK MXS 3.8 battery charger which, in turn, is plugged into the 2 pin plug point...

    I’m hoping that the Prado plug point charges the car battery faster than the SnoMaster depletes it over long days of driving...
    During long parked (non-driving) periods, I plan to charge the battery with a 158W Kalahari solar kit from FlexoPower...

    I’ll test it all on a trip up to Kruger/Pafuri next week in preparation for a Zambia Liuwa Plains trip Nov/Dec...

  2. #2
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    Default Re: Prado’s cargo bay AC220V/100W 2 pin plug point

    3,8 Amps will take a very long time to charge a battery that was discharge over night by a fridge.
    Johan Kriel

    LC PU's and a Prado

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    Default Re: Prado’s cargo bay AC220V/100W 2 pin plug point

    I am confused.

    Sorry edit. Just confused.
    Last edited by lekhubu943; 2017/10/12 at 02:10 PM.
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    Default Re: Prado’s cargo bay AC220V/100W 2 pin plug point

    lekhubu943, If your Prado have a live 220 volt outlet in its cargo bay I am sure it is intended to charge camera batteries and cell phones which is not impossible if through an inverter, but not very practical to convert 12 volts up to 220 and then again down to 12 volts through a CTEK to charge a deep cycle battery with. According to the manual published on the Internet the CTEK 3.8 is not a 12v dc to 12v dc charger, but requires 220 volts to charge a battery. (I am assuming you refer to the CTEK 3.8 discussed on the web).

    According to its manual the CTEK 3,8 delivers 3.8 amps, and it states that it will take 20 hours to charge a depleted 80 ah battery to 80% DOC.

    Assuming this CTEK is connected to 220 volts and the battery and fridge connected to the CTEK, then, If your fridge calls for say 3.5 amps, then whist the compressor is running only 0.3 amps will be available to charge the battery. In this application it looks as if that CTEK is the ideal gift you give to a person you want to frustrate and punish - especially in the bundu.
    Last edited by Poen; 2017/10/12 at 04:28 PM.
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    Default Re: Prado’s cargo bay AC220V/100W 2 pin plug point

    Edit: sorry Poen I re-read your post again this morning and I understand what you are saying.

    I agree especially with this part of your post and that is what confused me wrt to the OP's set up: "If your Prado have a live 220 volt outlet in its cargo bay I am sure it is intended to charge camera batteries and cell phones which is not impossible if through an inverter, but not very practical to convert 12 volts up to 220 and then again down to 12 volts through a CTEK to charge a deep cycle battery with."

    I also understood that the plug in the back of the Prado is in fact 220V. So converting 12V to 220V and back to 12 V (as you point out) seems to me a bit out of a round about way to achieve what the normal dual battery system like ours does. We have a deep cycle and a C-tek Dual under the bonnet with a Brad Harrison in the back from which our NL runs. This system has been tested thoroughly over the past 6 years.

    BTW, that 220 V plug in the back is as dead as a door nail unless the ignition is on. And there is definitely an inverter in there somewhere.

    But each to his own, we all camp differently.
    Last edited by lekhubu943; 2017/10/13 at 07:44 AM.
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  8. #6
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    Default Re: Prado’s cargo bay AC220V/100W 2 pin plug point

    Thanks everyone for chiming in...

    I'm hoping that, if I leave home with a fully charged deep cycle battery and the fridge is pulling 3.5 amps, the battery will remain fully charged over a 8 or 9 hour drive since the charger is pushing 3.8 amps...

    I've tested the the fridge running at -22degC pulling off the fully charged deep cycle battery and it took 3 days to run the battery flat.

    I know hope is the last thing one should rely on, but never the less, I'M HOPING that the following combination keeps the meat cold in the SnoMaster 42 plugged permanently into the deep cycle battery:
    1) leaving home with a fully charged deep cycle battery
    2) full day driving (8 or 9 hours) gets a charge through to the battery
    3) 158W solar panels continue the charging when the vehicle is parked in the day
    4) the combination of 1-3 keep the battery (and the fridge) going overnight

    During the Joburg-Pafuri test run (departing Friday 20th), the test will be to see if the fully charged battery can run the fridge at 5 degC and get topped up by the Prado's plug-point...
    Last edited by RichM; 2017/10/16 at 09:45 AM. Reason: Text did not flow/break as I’d typed it...

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    Default Re: Prado’s cargo bay AC220V/100W 2 pin plug point

    Can I suggest that you transfer the fridge to run off 12v directly whilst driving? That way you get full charge back into aux battery?

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    Default Re: Prado’s cargo bay AC220V/100W 2 pin plug point

    Quote Originally Posted by gmmcdonald View Post
    Can I suggest that you transfer the fridge to run off 12v directly whilst driving? That way you get full charge back into aux battery?
    Thank you @gmmcdonald... will give that a bash for sure...

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    Default Re: Prado’s cargo bay AC220V/100W 2 pin plug point

    So here's feedback following a 14 hours driving to/from northern Kruger (Pafuri gate) and daily driving around...

    The SnoMaster 42 fridge ran at 6degC on the way to Pafuri over the 7 hour drive and the battery reached full charge after only a few minutes plugged into mains upon arriving at Pafuri Border Camp which means the fridge's amps pull was essentially lower than the deep cycle battery charging via the CTEK 3.8 from the 2-pin plug since stops totaling 1 hour (when the car wasn't idling) took place...

    The key learning (thanks @gmmcdonald) for the end Nov Liuwa Plains, Zambia trip is to run the fridge (-16degC) off the Prado's rear passenger 12v cigi plug and keep the deep cycle battery topping up in the 2-pin plug while driving long distances...

    I'll test the 158KW solars' ability to keep the battery charged while the fridge is running in -16degC mode in a couple of weeks...

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    Default Re: Prado’s cargo bay AC220V/100W 2 pin plug point

    It all worked as planned, including 8 days camping off the grid...

    The solars worked like a dream when parked in the day and lots of day driving (4-7 hour outings) kept the battery plugged into the cargo bay 2-pin plug point juiced up while the SnoMaster ran off the 12V cigi female plug.

    The SnoMaster held -7deg C for 7.5 days and was then reset to 4 deg C for the remaining 3 or 4 days....

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    Default Re: Prado’s cargo bay AC220V/100W 2 pin plug point

    Thanks for report.
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    Default Re: Prado’s cargo bay AC220V/100W 2 pin plug point

    I have the same solar but 133W (the older model) and it performs very well providing 8.3 Amps.

    How did you position your solar - hung or draped over Prado or on ground?
    Paul

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    Default Re: Prado’s cargo bay AC220V/100W 2 pin plug point

    Quote Originally Posted by Paul Dold View Post
    I have the same solar but 133W (the older model) and it performs very well providing 8.3 Amps.

    How did you position your solar - hung or draped over Prado or on ground?
    Mostly 1 end high up in a tree that I could rotate the panel around and the other end to a full jerry. This helped keep the solar out the dust.
    The ladder from the RTT helped getting up the tree...

    On one occasion, during a birding stop on a game drive, I was able to stretch the solar out on lush grass for 3 hours...

    Mostly the Prado was parked in the shade so never draped over the vehicle...

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    Default Re: Prado’s cargo bay AC220V/100W 2 pin plug point

    Quote Originally Posted by RichM View Post
    Mostly 1 end high up in a tree that I could rotate the panel around and the other end to a full jerry. This helped keep the solar out the dust.
    The ladder from the RTT helped getting up the tree...

    On one occasion, during a birding stop on a game drive, I was able to stretch the solar out on lush grass for 3 hours...

    Mostly the Prado was parked in the shade so never draped over the vehicle...

    ...probably also worth mentioning that the SnoMaster ran overnight...

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    Default Re: Prado’s cargo bay AC220V/100W 2 pin plug point

    Ok I see you got a system that works but , now for the next step ,only a few bucks and you can do it yourselves.

    A solenoid or isolator, 30 a fuse, and 2x about 5m 10 sqmm cable and a plug at the back to charge the battery while driving directly from your alternator. If you drive for a few hours a day you would not need to use the solars. Then you only use the solars when stationery for the whole day.

    https://www.victronenergy.com/upload...mbiner-Kit.pdf
    https://www.victronenergy.com/upload...olators-EN.pdf

    The 220 v charger you can plug to the battery when not use for long periods to keep the battery healthy.
    Last edited by JLK; 2017/12/27 at 08:31 AM.
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    Default Re: Prado’s cargo bay AC220V/100W 2 pin plug point

    Quote Originally Posted by JLK View Post
    Ok I see you got a system that works but , now for the next step ,only a few bucks and you can do it yourselves.

    A solenoid or isolator, 30 a fuse, and 2x about 5m 10 sqmm cable and a plug at the back to charge the battery while driving directly from your alternator. If you drive for a few hours a day you would not need to use the solars. Then you only use the solars when stationery for the whole day.

    https://www.victronenergy.com/upload...mbiner-Kit.pdf
    https://www.victronenergy.com/upload...olators-EN.pdf

    The 220 v charger you can plug to the battery when not use for long periods to keep the battery healthy.
    Thanks JLK for the advice... I'm going to stay with the current off-line battery system until its time to upgrade to your recommendation...

    For now, the permutations I switch between seem to be working:
    1) While driving: The standalone deep-cycle battery in the cargo bay plugged into the 220v 2-pin via the CTEK5.0 (upgraded the CTEK3. charging up while the SnoMaster42 is plugged into the backseat 12v
    2) Overnight, mains grid available: SnoMaster42 plugged into grid and cargo bay, standalone deep-cycle battery also plugged via the CTEK 5.0 into the grid for charging up
    3) Overnight off mains grid: SnoMaster42 pulls directly from cargo bay, standalone deep-cycle battery
    4) Day - off grid: Either driving (see 1 above) or, if parked, 158kw solars charge-up cargo bay, standalone deep-cycle battery while SnoMaster42 pulls from the battery

    Point 4 needs to be reconfigured if it's raining - mandatory driving or allow the battery to run down. Also, point 2 needs reconfiguring if the mains grid is supplied by a generator that shuts down at a certain time... Then, either the SnoMaster loses power until morning or I connect up a chain as follows SnoMaster42>deep-cycle bat>CTEK 5.0>grid so if the grid shuts off, the SnoMaster42 pulls off the deep-cycle bat

    This all keeps me very busy, including shifting solars around, and I need to "hou kop" big time - the advantage is that I can outsource chores/tasks to others since I've been sooooo busy with such an important, never ending project...
    Last edited by RichM; 2018/01/04 at 06:45 AM.

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