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Thread: Battery talk... Come in Tim.

  1. #11
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    Thought I’d have a bopeep at solar king website given they have been mentioned few times.

    I’m not overly excited about the specs of their batteries….I looked at the 200ah as I run a 200…

    Unless I’m reading it all wrong…….Solar king don’t have a battery to suit battery my application.

    Price is probably OK for running a fridge and a few other low draw bits and pieces..o guess you get what you pay for.

    Hmmm and apparently lithium’s can’t lt be used as starters or winching…….

  2. #12
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    Need to talk to Deans and Tim about this. I need to decide on what system to install. My OKA has totally separate start and house systems which is in great need of upgrading.
    ​JayTee

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  3. #13
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    Hi Tins and I know next to nothing about an OKA's electrics.

    I suspect it has a constant alternator voltage, probably around the 14.0v to 14.3v.

    Can you tell me what yours is?

    Anything over 13.8v, you could run a bank of lithium house batteries and possibly charge direct from the alternator.

  4. #14
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    Quote Originally Posted by W&KO View Post
    I looked at the 200ah as I run a 200…
    I would not touch the SolarKing 200Ah Lithium batteries.

    There are two 100Ah Solarking lithium batteries and SKU6470C has the same operating specs as the 200Ah.

    Their site and battery model numbers are a bit confusing but the SKU6470C is far better than most other batteries of similar size but is far better priced.

  5. #15
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    Quote Originally Posted by DeanoH View Post
    No mention what so ever about charge current limiting for Lithiums (maybe in second half of video?) and possible alternator damage.
    Deano
    Hi Deano, there is no threat to the alternator as high current loads can not harm an alternator because they are actually self-protecting.

    But most Lithium batteries will not tolerate high current recharging, including that Redarc battery.

    With something like a genuine Drop-In lithium battery, your would be OK charging direct off the alternator, just need a means to disable the SMART alternator function in newer vehicles or nothing will charge, Lithium auxiliary battery or the Cranking battery.

  6. #16
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    One thing he did get right was the weight. Not a concern for me in the OKA

    Tim, I'll get back to you on the alternator. I know it's a Bosch, and the car is 28 years old so it ain't going to be "smart". Cunning, perhaps. A sparky I'm not, but I'm pretty sure the current (!) system is that the alternator charges only the crank battery and the solar takes care of the house, but I'm not 100% on that as it really doesn't make sense to me as the sun doesn't always shine. It's all a bit hard to see, so there's possibly an isolator hiding in there somewhere.

    This is the solar controller. An oldie but hopefully still a goodie.
    IMG_2677.jpg
    ​JayTee

    Nullus Anxietus

    ​Getting involved in discussions is the best way to learn.

    2000 D2 TD5 Auto: Tins
    1994 D1 300TDi Manual: Dave
    1980 SIII Petrol Tray: Doris
    OKApotamus #74
    Nanocom, D2 TD5 only.

  7. #17
    BradC is offline Super Moderator
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    Quote Originally Posted by Tins View Post
    This is the solar controller. An oldie but hopefully still a goodie.
    We had one of those on the boat. Replace it with a modern MPPT jobbie and get more bang for your panel.

  8. #18
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    Quote Originally Posted by BradC View Post
    We had one of those on the boat. Replace it with a modern MPPT jobbie and get more bang for your panel.
    This is my first excursion into solar power. Lot to learn it seems. MPPT jobbies appear to be cheap enough.
    ..
    ​JayTee

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    1994 D1 300TDi Manual: Dave
    1980 SIII Petrol Tray: Doris
    OKApotamus #74
    Nanocom, D2 TD5 only.

  9. #19
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    Hi again Tins and just a suggestion.

    Why not just see if your existing regulator meets your needs before buying a new reg.

  10. #20
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    Quote Originally Posted by drivesafe View Post
    Hi again Tins and just a suggestion.

    Why not just see if your existing regulator meets your needs before buying a new reg.
    Well, so far it is Tim. But it hasn't been put to the test very much. I have other fish to fry before I need to worry too much about it. But if I get to do what I hope to do my power demands will increase.
    ​JayTee

    Nullus Anxietus

    ​Getting involved in discussions is the best way to learn.

    2000 D2 TD5 Auto: Tins
    1994 D1 300TDi Manual: Dave
    1980 SIII Petrol Tray: Doris
    OKApotamus #74
    Nanocom, D2 TD5 only.

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