Plug for direct line from battery to boot





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  1. #1
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    Default Plug for direct line from battery to boot

    My intention is to run a fridge and may be LED.

    I browsed a bit but could not find a definitive answer.

    1) What plug should I go for? Even though I have the Snomaster battery box, I am not doing dual battery system yet.
    My first fridge, would like to explore with primary battery and a jump start device.

    2) Where to put that whatever plug it is in the back of my Pajero Sport? Do we need drilling through the plastic cover?
    Or can the empty battery box be used without a battery?

    3) Is 16mm cable enough for the wiring?

    4) I already have a cigarette plug point at the back. How about replace the wire with thicker cable and fuse?
    Last edited by Teryos; 2019/12/06 at 08:59 AM.

  2. #2

    Default Re: Plug for direct line from battery to boot

    You have a snomaster battery box, with what inside?

  3. #3
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    Default Re: Plug for direct line from battery to boot

    The 16mm cable is good.

    Connect straight on to your battery and insert a 20-30A fuse close to the battery on the positive cable.

    Go through the firewall (seal again if needed) to the back of the vehicle.

    Leave some extra cable for future mods, fit a 50A Brad Harrison.

    The Brad Harrison plug is a durable plug with a solid connecting and it's very popular for use in 4x4 and overlanding.

    You can now connect your fridge, lights, compressor, solar controller, 12v charger, dual battery system etc. to this plug.

    The plug can be secured to a panel or just tucked away somewhere out of sight.
    Last edited by DC Polokwane; 2019/12/06 at 09:45 AM.
    Jeep Grand Cherokee 2002 4.7 V8

  4. #4
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    Default Re: Plug for direct line from battery to boot

    Quote Originally Posted by DC Polokwane View Post
    The 16mm cable is good.

    Connect straight on to your battery and insert a 20-30A fuse close to the battery on the positive cable.

    Go through the firewall (seal again if needed) to the back of the vehicle.

    Leave some extra cable for future mods, fit a 50A Brad Harrison.

    The Brad Harrison plug is a durable plug with a solid connecting and it's very popular for use in 4x4 and overlanding.

    You can now connect your fridge, lights, compressor, solar controller, 12v charger, dual battery system etc. to this plug.

    The plug can be secured to a panel or just tucked away somewhere out of sight.
    That ^

    My setup is like that, works great.

    I also have a little black box that cuts the power at 12.2 volts, so that I can't run down the car battery.
    Discovery 1 1996 V8i (Sold, owned for 20 years); Freelander 2 2013 SD4 SE; Discovery 4 2014 SDV6 SE; Bushlapa Boskriek


  5. #5
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    Default Re: Plug for direct line from battery to boot

    I just left the plug inside the jack compartment and took the little door of when I needed it.
    Everything is a hammer.
    Unless it is a screw driver.

    Then it it a chisel.

  6. #6
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    Default Re: Plug for direct line from battery to boot

    Quote Originally Posted by DC Polokwane View Post
    The 16mm cable is good.

    Connect straight on to your battery and insert a 20-30A fuse close to the battery on the positive cable.

    Go through the firewall (seal again if needed) to the back of the vehicle.

    Leave some extra cable for future mods, fit a 50A Brad Harrison.

    The Brad Harrison plug is a durable plug with a solid connecting and it's very popular for use in 4x4 and overlanding.

    You can now connect your fridge, lights, compressor, solar controller, 12v charger, dual battery system etc. to this plug.

    The plug can be secured to a panel or just tucked away somewhere out of sight.
    Thanks, good advice.

  7. #7
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    Default Re: Plug for direct line from battery to boot

    Quote Originally Posted by Uys View Post
    I just left the plug inside the jack compartment and took the little door of when I needed it.
    Yes I had something similar in my mind, hide the cables in that box.

  8. #8
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    Default Re: Plug for direct line from battery to boot

    Quote Originally Posted by mplester View Post
    You have a snomaster battery box, with what inside?
    I bought the battery box because of the black Friday deal. No budget to get a secondary battery now. But wondering if the empty box's plugs can be used from the main battery of the vehicle... So, essentially cable that connects to main battery, the end connectors of that vable will reside in the jack compartment, I'll just connect them to the empty battery box when needed and use the attached plugs. Doable? Risk?

  9. #9
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    Default Re: Plug for direct line from battery to boot

    Just please take note of the advice on the fuse as close to the battery as possible! Very important this
    2004 Nissan Patrol 4.8
    1999 Nissan Patrol 4.2D

  10. #10
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    Default Re: Plug for direct line from battery to boot

    Quote Originally Posted by Graham View Post
    Just please take note of the advice on the fuse as close to the battery as possible! Very important this
    Thanks, I'll keep it in mind.
    Last edited by Teryos; 2019/12/06 at 10:48 AM.

  11. #11
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    Default Re: Plug for direct line from battery to boot

    Quote Originally Posted by Jola View Post
    That ^

    My setup is like that, works great.

    I also have a little black box that cuts the power at 12.2 volts, so that I can't run down the car battery.
    Which black box is that? Where? How much?

    By the way, is Anderson and Brad Harrison same plug with different names?

  12. #12
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    Default Re: Plug for direct line from battery to boot

    Quote Originally Posted by DC Polokwane View Post
    The 16mm cable is good.

    Connect straight on to your battery and insert a 20-30A fuse close to the battery on the positive cable.

    Go through the firewall (seal again if needed) to the back of the vehicle.

    Leave some extra cable for future mods, fit a 50A Brad Harrison.

    The Brad Harrison plug is a durable plug with a solid connecting and it's very popular for use in 4x4 and overlanding.

    You can now connect your fridge, lights, compressor, solar controller, 12v charger, dual battery system etc. to this plug.

    The plug can be secured to a panel or just tucked away somewhere out of sight.
    I need a bit of clarity before going for this setup.

    Not now, but in near future, I'll be getting a battery in my Snomaster battery box and ultimately later on.. the solar...

    This "Plug for direct line from battery to boot" wiring, I would like it be done right, sufficient and modular first time so that we don't have to remove the side panels etc again while doing the actual dual battery setup or solar.

    Are the above steps enough for future battery box or solar connection? Anything else that needs to be done?

  13. #13
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    Default Re: Plug for direct line from battery to boot

    Quote Originally Posted by DC Polokwane View Post
    The 16mm cable is good.

    Connect straight on to your battery and insert a 20-30A fuse close to the battery on the positive cable.

    Go through the firewall (seal again if needed) to the back of the vehicle.

    Leave some extra cable for future mods, fit a 50A Brad Harrison.

    The Brad Harrison plug is a durable plug with a solid connecting and it's very popular for use in 4x4 and overlanding.

    You can now connect your fridge, lights, compressor, solar controller, 12v charger, dual battery system etc. to this plug.

    The plug can be secured to a panel or just tucked away somewhere out of sight.
    I need a bit of clarity before going for this setup.

    Not now, but in near future, I'll be getting a battery in my Snomaster battery box and ultimately later on.. the solar...

    This "Plug for direct line from battery to boot" wiring, I would like it be done right, sufficient and modular first time so that we don't have to remove the side panels etc again while doing the actual dual battery setup or solar.

    Are the above steps enough for future battery box or solar connection? Anything else that needs to be done keeping the future setup in mind?

  14. #14
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    Default Re: Plug for direct line from battery to boot

    Quote Originally Posted by Teryos View Post
    I need a bit of clarity before going for this setup.

    Not now, but in near future, I'll be getting a battery in my Snomaster battery box and ultimately later on.. the solar...

    This "Plug for direct line from battery to boot" wiring, I would like it be done right, sufficient and modular first time so that we don't have to remove the side panels etc again while doing the actual dual battery setup or solar.

    Are the above steps enough for future battery box or solar connection? Anything else that needs to be done keeping the future setup in mind?

    This thread should answer most of your question.

    https://www.4x4community.co.za/forum...ry-for-camping

    Look at these drawings in post #9

    https://www.4x4community.co.za/forum...67#post2270567
    Jeep Grand Cherokee 2002 4.7 V8

  15. #15
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    Default Re: Plug for direct line from battery to boot

    Quote Originally Posted by DC Polokwane View Post
    This thread should answer most of your question.

    https://www.4x4community.co.za/forum...ry-for-camping

    Look at these drawings in post #9

    https://www.4x4community.co.za/forum...67#post2270567
    Thanks, I had had a look at that useful thread, but I am still bit confused! Sorry for being so noob!

    My initial structure will be very simple. Later on all those fancy things... But whatever gadgets I add on later such as solenoid, voltmeter, solar, DC DC, smart charger etc, the very basic is that the 16mm cables connect to primary battery and the other ends in the boot are then ready for all the extras. Please correct me if I got it wrong.

  16. #16
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    Default Re: Plug for direct line from battery to boot

    Quote Originally Posted by Teryos View Post
    Thanks, I had had a look at that useful thread, but I am still bit confused! Sorry for being so noob!

    My initial structure will be very simple. Later on all those fancy things... But whatever gadgets I add on later such as solenoid, voltmeter, solar, DC DC, smart charger etc, the very basic is that the 16mm cables connect to primary battery and the other ends in the boot are then ready for all the extras. Please correct me if I got it wrong.
    That is correct.

    a Fuse close to the battery on positive side and a BH plug at the end, affixed at a suitable place in the back.

    Everything else can be fitted from this setup. Its the most basic.

    PS. Leave some slack in the cable, in the boot, for options later on.
    Last edited by DC Polokwane; 2019/12/17 at 12:08 PM.
    Jeep Grand Cherokee 2002 4.7 V8

  17. #17
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    Default Re: Plug for direct line from battery to boot

    Quote Originally Posted by DC Polokwane View Post
    That is correct.

    a Fuse close to the battery on positive side and a BH plug at the end, affixed at a suitable place in the back.

    Everything else can be fitted from this setup. Its the most basic.

    PS. Leave some slack in the cable, in the boot, for options later on.
    Thanks, a
    ppreciate it.
    That's all I wanted to figure out.

  18. #18
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    Default Re: Plug for direct line from battery to boot

    Quote Originally Posted by Teryos View Post
    Which black box is that? Where? How much?

    By the way, is Anderson and Brad Harrison same plug with different names?
    Yes those are the same plugs.

    I prefer the ‘blue box’. The victron will cost between R700 and R1000, depending on which model you choose. It might sound expensive but you’ll never have a dead or damaged battery. Worth every cent

    https://www.victronenergy.com/batter...attery-protect

  19. #19
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    Default Re: Plug for direct line from battery to boot

    Quote Originally Posted by MrTolbos View Post
    Yes those are the same plugs.

    I prefer the ‘blue box’. The victron will cost between R700 and R1000, depending on which model you choose. It might sound expensive but you’ll never have a dead or damaged battery. Worth every cent

    https://www.victronenergy.com/batter...attery-protect
    Thank you.

  20. #20
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    Default Re: Plug for direct line from battery to boot

    Quote Originally Posted by DC Polokwane View Post
    That is correct.

    a Fuse close to the battery on positive side and a BH plug at the end, affixed at a suitable place in the back.

    Everything else can be fitted from this setup. Its the most basic.

    PS. Leave some slack in the cable, in the boot, for options later on.
    One or two last questions. I understand the initial setup. Sounds pretty straight forward to me. But what if I would like a solenoid between primary and secondary batteries? Does one end of the 16mm cable need to be connected to the alternator of the vehicle?

    And is 16mm cable sufficient or 25mm is going to be bit overkill

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