Super chuffed - WRND, LC Batt & Solar setup





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  1. #1
    Join Date
    Jun 2015
    Location
    Pretoria East
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    598

    Default Super chuffed - WRND, LC Batt & Solar setup

    I have had many variations of dual battery systems in the past and recently being using a WRND system and my combination as a whole is the best by far.

    Input to the WRND unit is from alternator and 150W solar panel flat mounted on my Hilux’s canopy. The WRND providing a MPPT regulator input to my 150AH Lead Crystal battery.

    I have just returned from a week in the bush and only once did we go for a short drive, the test of the time only sun input.

    My NL 90L twin was set at 1 degrees for both compartments running all the time. My NL indicator was all the time on 4 yellow lights, and even when completely overcast yesterday morning was still charging with 2 green lights lit.

    Ok it was not 40 by day and 26 by night, but still, I don’t recall any previous combination being this stress-free.

    The WRND unit was not expensive and is a fantastic combo unit.
    Dirk Theron
    Land Cruiser FJ
    Hilux 2.8 GD-6 Auto 4x4
    BL865 Ratel4
    Life’s a journey, enjoy the ride

  2. #2
    Join Date
    Feb 2010
    Location
    Malmesbury
    Age
    60
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    966

    Default Re: Super chuffed - WRND, LC Batt & Solar setup

    glad to hear ,allso got it and still need to test it ,just coupled it at home for a test and it performed better than the setup i had .

    Colt clubcab 2.8tdi 4x4 2005
    Ford Fiesta 1.4i (SWAMBO]
    jurgens off road trailor xt 140
    opel corsa 1.7 dti 2006

  3. #3
    Join Date
    Jun 2015
    Location
    Pretoria East
    Posts
    598

    Default Re: Super chuffed - WRND, LC Batt & Solar setup

    An update...

    3 Weeks ago we joined a group and completed the Rust de Winter bundu trail. I used the FJ with WRND installed in the engine bay, which according to the installation instructions is allowed.

    It was really hot, mid 30’s and crawling along at low speed and RPM I noticed on my NL battery monitor that the unit stopped charging after a few hours. Airflow thus was very low.

    This was on the Saturday. Checked again and same happened on the Sunday.

    I can only assume it is heat related and not voltage difference between Primary and Secondary batteries.

    I have an Onca replacement bumper with protection plates all the way to the transfer case. This I also assume is a contributing factor for extra heat buildup within the engine bay?

    With my Hilux the WRND is alongside the battery in the rear where the same will not apply. I have not yet used the Hilux in similar conditions to check.

    Has anyone experienced the same?

    I am contemplating moving the unit to behind the firewall to reduce the heat effect.
    Dirk Theron
    Land Cruiser FJ
    Hilux 2.8 GD-6 Auto 4x4
    BL865 Ratel4
    Life’s a journey, enjoy the ride

  4. #4
    Join Date
    Mar 2010
    Location
    Cape Town - RSA
    Age
    34
    Posts
    2,642

    Default Re: Super chuffed - WRND, LC Batt & Solar setup

    it is designed to slow or cut charge when it gets too hot. So what you are describing makes sense.

    I would move it out of the engine bay.
    2007 Jeep Grand Cherokee 3.0 CRD Overland - GDE Eco Tune + 2" Lift on 265/70/17 BFG KO2's
    2017 Venter Savuti + Tentco Jnr, Dometic CF50 Fridge + Snomaster Battery Box
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  5. #5
    Join Date
    Jun 2015
    Location
    Pretoria East
    Posts
    598

    Default Re: Super chuffed - WRND, LC Batt & Solar setup

    Quote Originally Posted by Quiksilver View Post
    it is designed to slow or cut charge when it gets too hot. So what you are describing makes sense.

    I would move it out of the engine bay.
    The frustration is the fact that the installation instructions allow for mounting the unit in the engine bay.

    But I hear you and will make a plan to move it before we use the FJ again in similar conditions.
    Dirk Theron
    Land Cruiser FJ
    Hilux 2.8 GD-6 Auto 4x4
    BL865 Ratel4
    Life’s a journey, enjoy the ride

  6. #6
    Join Date
    Jul 2013
    Location
    Windhoek
    Age
    66
    Posts
    1,094

    Default Re: Super chuffed - WRND, LC Batt & Solar setup

    Make a crude heatshield from aluminium foil.
    I use it on my spit braai masjienkie . Keeps it cool wlinin the high heat in the braai.
    It should give you some heat shielding.

  7. #7
    Join Date
    Oct 2009
    Location
    Nelspruit
    Age
    36
    Posts
    563

    Default Re: Super chuffed - WRND, LC Batt & Solar setup

    I have mine mounted in the engine bay on the firewall right to the left side of vehicle. Diesel. I assume your FJ is petrol, that will have much higher engine temp. They also recommend installing as close as possible to the main battery AFAIK. Just move it to the corner as far away from the engine as possible first. Remember that a warm battery also doesnt perform as it should. Where is the second battery located?
    17 Ranger Supercab Tdci
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  8. #8
    Join Date
    Oct 2009
    Location
    Nelspruit
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    36
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    563

    Default Re: Super chuffed - WRND, LC Batt & Solar setup

    Sorry I have a NL solenoid, not WRND. And I see that the WRND recommends installing closer to secondary battery.
    17 Ranger Supercab Tdci
    18 Ranger Double cab Tdci (Swambo)
    12 Conqueror courage

    97 Defender 90 CSW 2.8i (Sold)
    04 Defender 110 d/c p/u Td5 (Sold)
    04 Discovery 2 Td5 GS auto (Sold)
    97 Defender HCPU Tdi (Sold)
    99 Discovery 2 TD5 GS (Sold)

  9. #9
    Join Date
    Jun 2015
    Location
    Pretoria East
    Posts
    598

    Default Re: Super chuffed - WRND, LC Batt & Solar setup

    I removed the NL solenoid system and installed the WRND as it is working really well in my Hilux, plus it has a MPPT solar regulator build in, which is a huge benefit.

    Name:  6C146424-065F-49A3-90A1-272C01DB76C5.jpg
Views: 143
Size:  67.6 KB

    I am happy how my installation turned out, I took my time and quality materials to complete the job. Even used different colour BH plugs to never accidentally mix the in/outputs.

    I used 10mm sq wired throughout, slight overkill, but had the wire at home.

    The WRND is fairly close to the Aux batt as can be seen in the pic.

    The FJ is petrol yes and the engine bay gets really hot when slow going.
    Dirk Theron
    Land Cruiser FJ
    Hilux 2.8 GD-6 Auto 4x4
    BL865 Ratel4
    Life’s a journey, enjoy the ride

  10. #10
    Join Date
    May 2011
    Location
    Pretoria
    Age
    50
    Posts
    871

    Default Re: Super chuffed - WRND, LC Batt & Solar setup

    Quote Originally Posted by DCTheron View Post
    I removed the NL solenoid system and installed the WRND as it is working really well in my Hilux, plus it has a MPPT solar regulator build in, which is a huge benefit.

    Name:  6C146424-065F-49A3-90A1-272C01DB76C5.jpg
Views: 143
Size:  67.6 KB

    I am happy how my installation turned out, I took my time and quality materials to complete the job. Even used different colour BH plugs to never accidentally mix the in/outputs.

    I used 10mm sq wired throughout, slight overkill, but had the wire at home.

    The WRND is fairly close to the Aux batt as can be seen in the pic.

    The FJ is petrol yes and the engine bay gets really hot when slow going.
    I installed mine on the Aux Battery pack back in the bin of the Hilux SC. No problems experienced. Last year did Swartpan in September, it was fine! Now with Ranger Xtra Cab, just moved the Aux box behind my seat. Even better.
    Last edited by Luka; 2019/10/22 at 02:25 PM. Reason: Add info.
    One of the stupid mistakes in life is to underestimate peoples level of stupidity!

  11. #11
    Join Date
    Jun 2015
    Location
    Pretoria East
    Posts
    598

    Default Re: Super chuffed - WRND, LC Batt & Solar setup

    Thanks Luka, my Hilux setup is similar to yours, no probs at all and with the 150W panel on the canopy roof it performs extremely well!
    Dirk Theron
    Land Cruiser FJ
    Hilux 2.8 GD-6 Auto 4x4
    BL865 Ratel4
    Life’s a journey, enjoy the ride

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