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  1. #301
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by Wedwo View Post
    BruceHun

    Hi. Please advise which 200ah Lifepo4 battery you are using. I am setting up a similar system thinking about a Blue Nova 200ah with Flexopower's Mojave 240w Foldable panel. I was looking at using a Vectron 100/30 controller but this might be overkill from what you are saying.

    Regards Gavin
    https://www.4x4community.co.za/forum...ova-two-or-one
    Post #2

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  3. #302
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    Default Re: Lithium vs Lead Acid

    All the discussions around Lithium are interesting and informative.
    My take
    There are only a few BMS manufacturers with reasonable quality
    BMS's hate drained batteries
    Drop-in lithium will be toast very quickly due to alternator charging profiles
    Always use a DC-DC charge if using litjium as Auxiliary battery.
    If have built approx 12 Lifepo auxiliary batteries. I am running mine close to a year without a hitch. It powers my 1.5kw inverter for my Nespresso machine without blinking.
    The biggest advice for LiFepo4 batteries is to NEVER drain them completely when on tour. The BMS falls into a coma and the DC-DC charger closes shop. It is a mission yo bring those boys back to life. Run the battery between 10 and 90% and they will run gor ever
    2002 Discovery td5

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  5. #303
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    Default Re: Lithium vs Lead Acid

    One thing I've seen, to REALLY learn about lithium's and their quirks, is to get 2nd life cells and make them work in unison.

    O boy, it is a challenge but once you "get it", have a balanced bank, o my, that is so cool.

    Ps. Yeah, I don't like it easy ... see, the day ones main bank has a problem, no support or over a weekend, you have NO idea where to start, trust me, you are going to learn very hard and very fast the same skills.

    Lead acid is the same ... no-one knows as much about lead acid than the ones who had to sit somewhere in deep dark Africa, without power.
    Political Correctness
    Political Correctness is a doctrine, fostered by a delusional illogical minority, rabidly promoted by a unscrupulous mainstream media which holds forth the proposition that it is entirely possible to pick up a turd ... by the clean end!

    Saw this in a pub - no idea why the wife does not see it so:
    I'm not opinionated ... I'm just always right!

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  7. #304
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by Wedwo View Post
    BruceHun

    Hi. Please advise which 200ah Lifepo4 battery you are using. I am setting up a similar system thinking about a Blue Nova 200ah with Flexopower's Mojave 240w Foldable panel. I was looking at using a Vectron 100/30 controller but this might be overkill from what you are saying.

    Regards Gavin
    Byron is now selling the Vision 200ah that can also be paralleled if necessary. The mecers on the market are second life.

    If you have the moola for BN then go for it. You will only need the 75/15 mppt for that size panel.

    I am very happy with the BN 82ah that I have in battery box to run my dometic 50l. I recently ran it for 5 days non stop and it only dropped to 70% SOC.
    Bruce Hunter
    "your signature should not be used to judge you or your opinions"

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  9. #305
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    Default Re: Lithium vs Lead Acid

    Hi

    If I google Sunsol I get Sunsol Geyser and I have just spoken to a William who does not know Byron. Can anyone supply a number or website for Byron



    I have one 200ah Sunsol battery. You will be happy and much cheaper than Blue Nova. Contact Byron at Sunsol solar.


    Regards Gavin
    2015 Discovery 4 30 SDV6 SE
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    2010 Discovery 4 30 TDV6 SE
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  10. #306
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by Wedwo View Post
    Hi

    If I google Sunsol I get Sunsol Geyser and I have just spoken to a William who does not know Byron. Can anyone supply a number or website for Byron



    I have one 200ah Sunsol battery. You will be happy and much cheaper than Blue Nova. Contact Byron at Sunsol solar.


    Regards Gavin
    SunsolE solar ....0764583576
    Bruce Hunter
    "your signature should not be used to judge you or your opinions"

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  12. #307
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    Default Re: Lithium vs Lead Acid

    Does anyone know Hoselect battery brand? I've come across this deal and it seems too good to be true.

    https://www.electromannsa.com/produc...SABEgKpNPD_BwE

  13. #308
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    Default Re: Lithium vs Lead Acid

    And the learning continues,
    120A lifepo4, 100A lifepo4, 50A lifepo4 with 120A, 60A and 20A BMS. Testing schedules for discharge with 1.5K inverter and Heatgun, 2x 12V fridges at different temp settings. Discharge rate vs charge rate. Balancing effectiveness etc etc.. Just as you think it is all understood one of the buggers decides to not balance properly. But I am getting closer to the perfect solution.
    Quote Originally Posted by the_terrible_triplett View Post
    One thing I've seen, to REALLY learn about lithium's and their quirks, is to get 2nd life cells and make them work in unison.

    O boy, it is a challenge but once you "get it", have a balanced bank, o my, that is so cool.

    Ps. Yeah, I don't like it easy ... see, the day ones main bank has a problem, no support or over a weekend, you have NO idea where to start, trust me, you are going to learn very hard and very fast the same skills.

    Lead acid is the same ... no-one knows as much about lead acid than the ones who had to sit somewhere in deep dark Africa, without power.
    2002 Discovery td5

  14. #309
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by VVTi View Post
    Does anyone know Hoselect battery brand? I've come across this deal and it seems too good to be true.

    https://www.electromannsa.com/produc...SABEgKpNPD_BwE
    Note that the name on the front is Hoselest, whereas on the back it's Hoselect and it's marketed as Hoselect. Makes me a bit suspicious . . .
    Last edited by slodj; 2021/04/22 at 08:00 PM.
    Stuart

    2006 Toyota Land Cruiser 100 4.7L V8

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  16. #310
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by slodj View Post
    Note that the name on the front is Hoselest, whereas on the back it's Hoselect and it's marketed as Hoselect. Makes me a bit suspicious . . .
    Good observation. No reputable brand will make such an obvious mistake

  17. #311
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by VVTi View Post
    Good observation. No reputable brand will make such an obvious mistake
    What makes it more suspicious is that its price is in the gel batteries price range.

  18. #312
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by VVTi View Post
    What makes it more suspicious is that its price is in the gel batteries price range.
    Also refer to post #261 Also spelling mistakes not just the name.
    Last edited by ekkekan; 2021/04/22 at 09:05 PM.

  19. #313
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by VVTi View Post
    Good observation. No reputable brand will make such an obvious mistake
    I see a couple of places have them on offer. Apart from the obvious name discrepancy and bad English translation, I noted that the sticker on the battery states 12kg but website has it at 22.8kg (pointed out in an earlier post by Ekkekan). Another website mentions a 6 month warrantee. Most probably some sort of second life battery.

    At that price I would be tempted to overlook the bad English and give it a bash.
    Last edited by bloudraad; 2021/04/22 at 09:35 PM.

  20. #314
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by bloudraad View Post
    I see a couple of places have them on offer. Another website mentions a 6 month warrantee. Most probably some sort of second life battery.
    Links please.

    Quote Originally Posted by bloudraad View Post
    At that price I would be tempted to overlook the bad English and give it a bash.
    There seems to be many shenanigans going with this battery. I personally like to buy something used and liked by most people as it gives me some confidence level. I think the best bang for buck currently is the Vision 12V 200ah with claimed 4000 cycles at 80% DOD with a retention capacity of 80% at 1C. Most reputable online stores are selling it as can be seen at links below:
    https://mhn.co.za/shop/vision-12v-lithium-200ah/

    https://thepowerstore.co.za/products...-lithium-200ah

    https://pclinkshop.co.za/ups-inverte...lithium-200ah/

    Note: this battery is new to the market but seems to provides better specs than the much loved (at least from what I read on another forum) Mecer counterpart, therefore I expect it to unseat it in this territory. Just my 2c worth.

  21. #315
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by VVTi View Post
    Links please.



    There seems to be many shenanigans going with this battery. I personally like to buy something used and liked by most people as it gives me some confidence level. I think the best bang for buck currently is the Vision 12V 200ah with claimed 4000 cycles at 80% DOD with a retention capacity of 80% at 1C. Most reputable online stores are selling it as can be seen at links below:
    https://mhn.co.za/shop/vision-12v-lithium-200ah/

    https://thepowerstore.co.za/products...-lithium-200ah

    https://pclinkshop.co.za/ups-inverte...lithium-200ah/

    Note: this battery is new to the market but seems to provides better specs than the much loved (at least from what I read on another forum) Mecer counterpart, therefore I expect it to unseat it in this territory. Just my 2c worth.
    I would be carefull using them. Even for solar since the BMS/Balancing board may be of substandard. To discharge at 100A you do need a FRIS BMS that does good balancing. To charge at 100A same as above.
    For 200Ah the price is very very cheap. With bulk discount a reasonable 100Ah lifepo4 battery will sell for +-ZAR7000.00.
    2002 Discovery td5

  22. #316
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    Wink Re: Lithium vs Lead Acid

    Quote Originally Posted by VVTi View Post
    Links please.
    Some links I found:

    https://www.sellsa.co.za/solar-battery-1210

    https://doodah.co.za/solar-power/339...ttery-12v.html

    https://gasolar.co.za/product-catego...-backup-units/

    https://www.facebook.com/pg/Linkssolar/posts/

    https://www.facebook.com/batteryrs/

    I see Battery mart in Klerksdorp mention them on their Facebook page. Perhaps worth while giving them a call and getting some more info. There seems to be some conflicting info about the batteries (the little which is available). I read somewhere else that there is a 3 year warrantee on the battery, so best to do some homework.

    Somebody needs to be the guinea pig...

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  24. #317
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    Default Re: Lithium vs Lead Acid

    https://mhn.co.za/shop/mecer-lifepo4...attery-200-ah/ Referring to these type battery
    Attached picture is how it looks inside apparently
    Found on powerforum
    Attached Images Attached Images  
    Last edited by WantOnsKan; 2021/04/23 at 10:52 AM. Reason: Link added

  25. #318
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    Default Re: Lithium vs Lead Acid

    This is a 48v 150ah 16 cell LifePo4 bank (7.68kWh i.e 51.2v (3.2v x 16) x 150ah) with:
    1) 200amp BMS with built in Bluetooth,
    2) Factory added RS485 port connecting to the Victron Venus via USB,
    3) Victron SmartShunt for more accurate SOC, that also has Bluetooth, connecting to same Venus via VE.Direct cable.
    Attached Images Attached Images  
    Political Correctness
    Political Correctness is a doctrine, fostered by a delusional illogical minority, rabidly promoted by a unscrupulous mainstream media which holds forth the proposition that it is entirely possible to pick up a turd ... by the clean end!

    Saw this in a pub - no idea why the wife does not see it so:
    I'm not opinionated ... I'm just always right!

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  27. #319
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by bloudraad View Post

    Somebody needs to be the guinea pig...
    It can't be me

  28. #320
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    Default Re: Lithium vs Lead Acid

    Quote Originally Posted by WantOnsKan View Post
    https://mhn.co.za/shop/mecer-lifepo4...attery-200-ah/ Referring to these type battery
    Attached picture is how it looks inside apparently
    Found on powerforum
    Yes, there's also good reviews on the same thread.

    Link: https://powerforum.co.za/topic/5439-...ny-experience/
    Last edited by VVTi; 2021/04/24 at 12:44 AM.

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