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Thread: Leisure battery charging Part 2

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    Leisure battery charging Part 2



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    Okay, while I'm at it I've decided to fit solar to my van, on the controller side as anyone used this controller? Or this one?
    I'm open to suggestions if you have a particular controller that you know works.

    Regards,
    Del
    90% of people are stupid, I'm glad I'm in the other 20%

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    deleted by author, reason talking through my rear end!
    Last edited by malagaoth; 20-05-2018 at 23:32.
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    Quote Originally Posted by alwaysared View Post
    Okay, while I'm at it I've decided to fit solar to my van, on the controller side as anyone used this controller? Or this one?
    I'm open to suggestions if you have a particular controller that you know works.

    Regards,
    Del
    I think Trevskoda has used the Kemo, (the second one) I have used a Kemo thermostat to power fridge fans and it was pretty good although I have no experience of the solar controller myself.
    Trev will be along soon but if I mention Linux he has an alarm goes off in his house so he will be quicker

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    Have you decided how big/many panels you are going to fit yet? You need to know that first so you can make sure whichever controller will handle the output

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    These controllers are PWM so you must use a solar panel made for 12v systems. A PWM (pulse width modulation) charger does not change the voltage of the solar panel, it just pulses it as the battery becomes closer to fully charged.

    MPPT (Maximum Point Power Tracking) controllers can use higher voltage panels. In tests, they are 10-40% more efficient than PWM. More of the power from your panel is being stored in your battery.

    Most MPPT controllers are multi-stage intelligent battery chargers, whereas the PWM controllers only prevent overcharging.

    If you are going to buy from eBay, be careful of fake MPPT controllers.
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    I notice that the Kemo (30 at the link) is currently (sorry) for sale at CPC at 21

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    Quote Originally Posted by malagaoth View Post
    I notice that the Kemo (30 at the link) is currently (sorry) for sale at CPC at 21
    Quote Originally Posted by Admin View Post
    These controllers are PWM so you must use a solar panel made for 12v systems. A PWM (pulse width modulation) charger does not change the voltage of the solar panel, it just pulses it as the battery becomes closer to fully charged.

    MPPT (Maximum Point Power Tracking) controllers can use higher voltage panels. In tests, they are 10-40% more efficient than PWM. More of the power from your panel is being stored in your battery.

    Most MPPT controllers are multi-stage intelligent battery chargers, whereas the PWM controllers only prevent overcharging.

    If you are going to buy from eBay, be careful of fake MPPT controllers.
    yep lots and lots of fake mppt controllers check utube vidios .

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    Check panel prices with Alpha, I just got a good deal with them

  10. #10
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    Fitted one of these last year and got the WC discount.

    12V 150W Xplorer German Cell Solar Panel Kit - Alpha Batteries Fitted with an MT50 remote display / controller.

    Paired up with two 135Ah batteries, also from Alpha and have been out for six weeks now with no problems. Also have 1800w Sterling inverter and have used that for for hair dryer (1200w) and toaster (800w) with no problems.

    MPPT will, or should, give even better charging.

    Cheers

    H
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