Solar Charge Controller as Battery Charger only

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  • burraak
    replied
    Originally posted by jflorey2
    Why? Get a 15V Meanwell supply and set it to 13.8 volts. (Also have to test it to make sure it current limits cleanly.) No need for a charge controller.
    I only have 24V Meanwell 350W 14amp supply , The PWM change controller LS2024B which I have provide automatic 3 stage charging (and voltage can be set by user) that is why i want to use it

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  • Sunking
    replied
    Originally posted by Logan005
    ok then, I will leave further testing to this guy.
    Did not mean to bust your chops. But you can test a MPPT controller, but it takes special equipment which he will never find.

    1. You must find a power supply compatible with the controller MPPT Voltage, Current, and Power. Example say a Morningstar Sun Saver 12/24 volt 15 amp charger. You would need a Power Supply with a power output of 200 watts as low as 17 volts @ 12 amps and as high as 50 volts @ 4 amps. Trick is it must limit and equal 200 watts. Good luck finding such a beast. But it can be done or built. It would be a simple 17 volt 12 amp DC power supply. Try finding one.

    2. You also really need to build a Constant Voltage current sink to mimic a battery, or use a heavily discharged battery for testing. Example a battery simulator that holds the output of the controller to say 12 volts and capable of sinking up to 15 amps of current. This will look like a discharged battery to the controller and turn it on to Constant Current or Bulk Mode. Again good luck finding one.

    Really kind of pointless anyway. Just buy an AC powered DC Power Supply or Battery Charger of appropriate voltage and current.
    Last edited by Sunking; 05-02-2016, 03:47 PM.

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  • Logan005
    replied
    Originally posted by Sunking
    Yes you can. Set the voltage to just slightly above MPPT. That is how you test them.
    ok then, I will leave further testing to this guy.

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  • Sunking
    replied
    Originally posted by jflorey2
    Why? Get a 15V Meanwell supply and set it to 13.8 volts.
    Took the words right out of my mouth. Any power supply with a variable voltage will work as a battery charger.

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  • Sunking
    replied
    Originally posted by Logan005
    Get a proper smart battery charger. You can not feed an MPPT CC with a basic power supply. I have tried and had to repair my power supply. I love the Samlex line of power supplies. I have a 24 volt 15 amp unit that handles my constant loads and maintains my deep cells flawlessly. $200
    Yes you can. Set the voltage to just slightly above MPPT. That is how you test them.

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  • Logan005
    replied
    Get a proper smart battery charger. You can not feed an MPPT CC with a basic power supply. I have tried and had to repair my power supply. I love the Samlex line of power supplies. I have a 24 volt 15 amp unit that handles my constant loads and maintains my deep cells flawlessly. $200

    Leave a comment:


  • jflorey2
    replied
    Originally posted by burraak
    I have ep solar LS2024b 20A Solar charge controller, I want to use it as battery charger without using solar cell,So what kind of power supply i need to attach with this charger to simulate solar cells?
    My battery is Flooded lead acid 135AH (20 Hr).

    I can source MeanWell 24V 14.6A 350W can this be used as power source to my 20amp charge controller?
    specs are attached
    Why? Get a 15V Meanwell supply and set it to 13.8 volts. (Also have to test it to make sure it current limits cleanly.) No need for a charge controller.

    Leave a comment:


  • Sunking
    replied
    I am not going to do your homework, you can do that. It will take a DC Power supply that matches your a Solar Panel Maximum Power Point Voltage and Current. Something on the order or as small as 18 volts @ 17 amps, or 36 volts @ 8.5 amps. (300 watt Power Supply). Good luck finding such a thing.
    Last edited by Sunking; 05-02-2016, 01:41 PM.

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  • burraak
    started a topic Solar Charge Controller as Battery Charger only

    Solar Charge Controller as Battery Charger only

    I have ep solar LS2024b 20A Solar charge controller, I want to use it as battery charger without using solar cell,So what kind of power supply i need to attach with this charger to simulate solar cells?
    My battery is Flooded lead acid 135AH (20 Hr).

    I can source MeanWell 24V 14.6A 350W can this be used as power source to my 20amp charge controller?
    specs are attached

    Thankyou
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