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  1. #361
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by WantOnsKan View Post
    My recently built 12V battery box with 100Ah cells from lithiumbatteriessa.co.za, 80A Daly Smart BMS from Banggood. 100/20 victron mppt. One red Harrison plug feeding directly from battery via BMS for bigger loads and 2 red Harrison plugs for fridge and 12V lights via mppt load output. Blue Harrison plug for solar panels.

    Many thanks to stormjp for his battery box idea and for giving me some pointers.
    That looks very neat!
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  3. #362
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by WantOnsKan View Post
    My recently built 12V battery box with 100Ah cells from lithiumbatteriessa.co.za, 80A Daly Smart BMS from Banggood. 100/20 victron mppt. One red Harrison plug feeding directly from battery via BMS for bigger loads and 2 red Harrison plugs for fridge and 12V lights via mppt load output. Blue Harrison plug for solar panels.

    Many thanks to stormjp for his battery box idea and for giving me some pointers.
    Very nice. How did you mount the breaker?

  4. #363
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by bees View Post
    Very nice. How did you mount the breaker?
    Thanks! It was quite an effort to get everything to fit. I used a small wooden wedge between the breaker and battery wood casing to keep it in place, if it rattles out I'll try improving it.

  5. #364
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    Default Re: Lithium vs Lead Acid

    I have never run a lead acid battery before, so can't compare, but darn, my 1400Wh lithium is a pleasure. Ran a 40l Engel for 30 hours, with some phone charging, and brought the SOC down to 94%. Expensive, worth it.

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    Leon Smith
    2020 Toyota Hilux XtraCab 2.8 4x4
    Fiat 500 0.9l turbo flattie

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  7. #365
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by leons View Post

    Click image for larger version. 

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    Wow that's a neat and professional installation. Where did you buy your bus bars?

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  9. #366
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by VVTi View Post
    Wow that's a neat and professional installation. Where did you buy your bus bars?
    Thanks! I bought the busbars at ACDC in Cape Town, and ground the positive bar's fuse indents down with an angle grinder.
    Leon Smith
    2020 Toyota Hilux XtraCab 2.8 4x4
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  11. #367
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by leons View Post
    I have never run a lead acid battery before, so can't compare, but darn, my 1400Wh lithium is a pleasure. Ran a 40l Engel for 30 hours, with some phone charging, and brought the SOC down to 94%. Expensive, worth it.
    Do I read your consumption correct that the fridge only used 6% of the 1400Wh available in the 30 hrs which is 84Wh?

  12. #368
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    Default Re: Lithium vs Lead Acid

    if, say i want to buy that setup from you, what will it cost me? to much info out there for my doodle i just want to "plug and play"
    Currently(Katryn) 2011 FL2 SD4 stock
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  13. #369
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by ekkekan View Post
    Do I read your consumption correct that the fridge only used 6% of the 1400Wh available in the 30 hrs which is 84Wh?
    That's right, according to the BMV-712. Granted, indoors on a cold Cape day, opened very occasionally.
    Leon Smith
    2020 Toyota Hilux XtraCab 2.8 4x4
    Fiat 500 0.9l turbo flattie

  14. #370
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by dieselwa View Post
    if, say i want to buy that setup from you, what will it cost me? to much info out there for my doodle i just want to "plug and play"
    Therein lies the rub. I estimate the completed box, together with the battery and all the Victron equipment, cost about R32,000.00.
    Leon Smith
    2020 Toyota Hilux XtraCab 2.8 4x4
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  16. #371
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by leons View Post
    Therein lies the rub. I estimate the completed box, together with the battery and all the Victron equipment, cost about R32,000.00.
    For a cheaper MPPT this could also be used.
    https://www.communica.co.za/products...BoC9dMQAvD_BwE

    Not taking anything away from Victron but there are pieces of kit that is cheaper. This happens to be one.



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  17. #372
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by ekkekan View Post
    Not taking anything away from Victron but there are pieces of kit that is cheaper. This happens to be one.
    Oh, no doubt. My solution is expensive, and certainly isn't the only one. In fact, it's not necessarily even the best one. I just had a bee in my bonnet .
    Leon Smith
    2020 Toyota Hilux XtraCab 2.8 4x4
    Fiat 500 0.9l turbo flattie

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  19. #373
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by leons View Post
    Oh, no doubt. My solution is expensive, and certainly isn't the only one. In fact, it's not necessarily even the best one. I just had a bee in my bonnet .
    Yes you have built a masterpiece with great ideas.

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  21. #374
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by leons View Post
    I have never run a lead acid battery before, so can't compare, but darn, my 1400Wh lithium is a pleasure. Ran a 40l Engel for 30 hours, with some phone charging, and brought the SOC down to 94%. Expensive, worth it.

    Click image for larger version. 

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Views:	195 
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ID:	618468

    Click image for larger version. 

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ID:	618469
    You're installation is very very neat. But I swallow a little hard on this part. Maybe run that test for us again to make sure.

    Even with the fridge outside with ambient temps around 10 degrees. That sounds a little too good to be true.
    Last edited by Die SwartKat; 2021/06/14 at 08:47 AM.
    Nico Swart

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  22. #375
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    Jul 2014
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by WantOnsKan View Post
    My recently built 12V battery box with 100Ah cells from lithiumbatteriessa.co.za, 80A Daly Smart BMS from Banggood. 100/20 victron mppt. One red Harrison plug feeding directly from battery via BMS for bigger loads and 2 red Harrison plugs for fridge and 12V lights via mppt load output. Blue Harrison plug for solar panels.

    Many thanks to stormjp for his battery box idea and for giving me some pointers.
    Baie netjies!

    I really like the idea of a smart BMS to monitor the charge whilst out and about, without having to get into the back of the vehicle to look.

    Is that a normal AC breaker you're using? I've been advised against using that in a DC setup, so opted for a 100A resettable breaker from 4x4direct.

    I really like your setup and might make a few tweaks to mine in future.

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  24. #376
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by stormjp View Post
    Baie netjies!

    I really like the idea of a smart BMS to monitor the charge whilst out and about, without having to get into the back of the vehicle to look.

    Is that a normal AC breaker you're using? I've been advised against using that in a DC setup, so opted for a 100A resettable breaker from 4x4direct.

    I really like your setup and might make a few tweaks to mine in future.
    It is indeed a 125A DC breaker from lithiumbatteriessa.co.za

    I have added the wooden casing to protect it from the ammo box sides and to give some compression to the cells.

    The BMS also have some short circuit protection but if all else fails... I have the DC breaker. And it's just good to know when it's off, everything is dead.

    The Bluetooth works very nicely and you can adjust BMS settings on the fly.
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  26. #377
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by WantOnsKan View Post
    It is indeed a 125A DC breaker from lithiumbatteriessa.co.za

    I have added the wooden casing to protect it from the ammo box sides and to give some compression to the cells.

    The BMS also have some short circuit protection but if all else fails... I have the DC breaker. And it's just good to know when it's off, everything is dead.

    The Bluetooth works very nicely and you can adjust BMS settings on the fly.
    I like this. I made one in a National Luna box with 240AH but I find its way over what I need.
    Where did you get the Ammo Box from? I might look at going this route instead.
    Last edited by Mypro-D; 2021/06/14 at 11:26 AM.

  27. #378
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by Mypro-D View Post
    I like this. I made one in a National Luna box with 240AH but I find its way over what I need.
    Where did you get the Ammo Box from? I might look at going this route instead.
    I bought it from Tentpro, this is the 50 cal. Fat ammo box.

  28. #379
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by Die SwartKat View Post
    You're installation is very very neat. But I swallow a little hard on this part. Maybe run that test for us again to make sure.

    Even with the fridge outside with ambient temps around 10 degrees. That sounds a little too good to be true.
    Yes, I will. Probably the better field test will be in a few weeks time when we'll be camping in the Kruger for a week. I'll try to keep track of all inputs and outputs.
    Leon Smith
    2020 Toyota Hilux XtraCab 2.8 4x4
    Fiat 500 0.9l turbo flattie

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  30. #380
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    Default Re: Lithium vs Lead Acid

    I did a test with mine, connected to an empty 65l SM, set it to - 22 deg C and ambient temps in side around 18 deg C. It ran for about 39 hours and battery reached +-10%. Opened lid once or twice.

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