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  1. Replies
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    Re: Opps room requirements

    My opinions on quote:
    I'd rather go for bigger Victron MultiPlus 12/1200 or 12/1600 to be safe.
    - The 12/800 only gives 700W @ 25deg celcius and as low as 400W at hogher temperatures.
    - The 12/800...
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    Re: Growatt Inverter

    Ek sien hulle website is afgesit deur hosting provider. Het vror vandag nog gewerk...
  3. Re: Powering water pressure pump during load shedding.

    Stand is the best option for maintenance free. 5m high will give you about 0.5bar, but good enough to still have water.

    Standard pressure pumps have high startup current. Take note of it when...
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    Re: Growatt Inverter

    Daar is verskillende modelle Growatt inverters.

    Maak seker jy kyk na die Battery max discharge power. Party modelle kan nie vol output gee van battery alleenlik nie (gedurende loadshedding met...
  5. Replies
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    Re: Land Cruiser 300 - 3.3L V6 diesel

    Left to right:
    ZX (VX-R replacement), GX, GR Sport (ZX luxuries with added offroad extras).

    GR Sport rumoured to be released in September.
  6. Replies
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    Re: Inverter connection

    150W is about 12.5A on 12v.

    The most common brad harrison connectors can handle up to 50A (some 25A). So, YES, it will be perfectly fine.

    You could even do 150W on a cigarette or hella plug....
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    Re: Mixed battery test results for UPS

    To minimise the risk of parallel connected batteries degrading at different rates, make sure all cable lengths and thickness are equal.

    Common negative busbar and positive busbars could also help....
  8. Re: Advice on replacing batteries: offgrid system

    About 10kWh "48V" Lithium setup should give you a "similar" capacity as you had before. Efficiency and what you actually get out of your PV will however be much better with lithium.

    Consider...
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    Re: G-Wagon Wheel spacers

    I had some made with these guys in Silverton, Pretoria in 2016. They manufacture for many fitment centres and can custom make according to what you want.

    Maugene Engineering Services (Pty) Ltd...
  10. Replies
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    47,563

    Re: Lithium vs Lead Acid

    Yup. This one: https://shop.energyon.co.za/shop/13v-218ah-2-8k-mps-lifepo4-lithium-battery/

    There are other brands and DIY kits for cheaper, but I am very happy with the performance of the...
  11. Replies
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    47,563

    Re: Lithium vs Lead Acid

    I did 2x 108Ah in series for 24(26V) system, although I would not recommend for everyone.

    I did this because I run 3000VA MultiPlus-II and on 12V the cables just become too thick to work with at...
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    New Navara manufactured in SA

    https://youtu.be/QGheL5DPv-s

    https://youtu.be/41v5BdHarks
  13. Replies
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    1,929,036

    Re: Bush Lapa mods

    Would loading height, chassis forward/backward tilt and axle height not play a role? I'm sure it will, but not sure how much
  14. Replies
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    1,929,036

    Re: Bush Lapa mods

    Where did you find this graph? Got one for Ratel4?
  15. Replies
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    Re: Looking for a Sprinter

    Very nice Pierre. Sounds like fun. Please share some photos of your Sprinter.
  16. Replies
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    Re: Lifepo4 charger

    C-Tec like nie lithium nie. Victron werk goed.
  17. Replies
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    1,043

    Re: Lifepo4 charger

    I have 216Ah LiFePO4 in Bush Lapa.

    Charger depends on charge source...

    Solar PV: 360W+ should be more than enough to keep you fully charged. Use suitable Victron or equivalent MPPT.

    From...
  18. Replies
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    Re: Lithium 12Ah on a gate motor

    Yup. Like everything in life, DIY would require less money, but more time. If I have to add a Rand value to my time, it was good not to do DIY. But DIY is good for learning and understanding how...
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    Re: Lithium 12Ah on a gate motor

    I've been using the 8Ah BlueNova MPS batteries on:
    - My 2x alarm systems (one for outside beams and one for house)
    - Centurion D10 gate motor moving 400kg steel and solid wood gate. Two batteries...
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    Re: Off-road tyres for 4x4 truck

    Thought I'd give an update for future refence to people looking to do a similar thing.

    We ended up getting new rims manufactured as most trucks have 22.5" rims and not 20" rims suited for offroad...
  21. Re: Looking for a company that builds/sells generator canopies

    Also try Generator Logic (www.genlogic.co.za)
  22. Re: Adding LITHIUM to your LEAD battery bank.

    Very interesting.
  23. Replies
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    Re: Cooper AT3's vs ST MAXX

    Look at my other thread. Stay away from Cooper. They look nice, but don't last and after sale support is horrible.

    I'd recommend BF Goodrich KO2.
  24. Replies
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    Re: Off-road tyres for 4x4 truck

    Guys with experience,

    Is Michelin XZL worth the 67% higher price than Goodyear ORD?

    My guess is that the Michelins are not 67% better, but I may be missing...
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    Re: Royal 102AH Battery life expectancy

    We use Lithium on telecom high sites as they have proven to cost about 30% over a 6 year time period when compared to Lead Acid (if not stolen too soon).

    - Cabinet temperates are too high for lead...
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    Re: Axpert solar input

    Ek's nie 'n expert op Axpert nie, maar ek is seker Voc (open circuit voltage) is al minimum wat regtig saak maak om te werk.

    Ek verstaan nie hoekom hulle 500W minimum sal spec nie. Kom ons kyk wat...
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    Rotary DC isolator switches

    Where can I find affordable Rotary DC Isolator switches? See attached sample photo of one from Blue Sea Systems.

    I need the following rotary isolators:
    - 4x >250Vdc >50A
    - 1x >56Vdc >175A
    - 1x...
  28. Replies
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    Re: Off-road tyres for 4x4 truck

    So... It's a new year and I need to sort this offroad truck tyre thing out (see attached photo with skid marks showing truck sliding sideways on muddy terrain).

    I'm not a truck expert and all the...
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    Re: Small scale pumped hydro electricity

    Water will be used for pumping to storage, drinking and greenhouse watering after use.

    Everything you mentioned is the route we're going, yes:
    1) Separate solar, lithium and inverter on each...
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    Re: Small scale pumped hydro electricity

    I do not think that wheel is very efficient (according to all my research so far). But please report back when he's done.
  31. Replies
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    Re: Small scale pumped hydro electricity

    Hi Mike. It's a bit off topic, but thanks for letting me know.

    Borehole is 70m deep, but since static water level sits at 10m, we only dropped the pump down 35m using CL16 pipe (not cl10).

    We...
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    Re: Small scale pumped hydro electricity

    Most micro hydro systems use a running body of water as a constant source of energy to use and is different than PUMPED hydro where you use solar during the day (or another cheap energy source) to...
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    Re: Small scale pumped hydro electricity

    I tracked down Adriaan Lombard that wrote that thesis in 2010. He is now working on large scale hydro power systems across the world.

    He gave me some useful tips on how to calculate the viability...
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    Re: Small scale pumped hydro electricity

    Thanks for the info. That thesis also gives a lot of information and I am busy going through it.

    I tried phoning Vortex Hydro (Pat Downey's company), but the office number just goes dead and the...
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    Re: Bush Lapa mods

    My monitoring... It's however a very expensive setup acting as UPS for my whole house with connection for additional PV on my house roof.

    Some components:
    - 2x BlueNova 108Ah lithium batteries...
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