Johann ✭✭✭


Last Active
Solar Expert
  • Re: Load not working on PWM controller

    found this on line

    And: Uh Oh.....  The Controller is Positive Grounding.
    ## this may present a problem if not set up correctly...

    This is something that has worried me.  It's ignorant probably, but I can't even imagine what a "positive grounding" is.  I think of grounding, I think negative.  So, how would that even work?   I suppose you can tell by this that I have not yet grounded my system :(

    also found the manual see page 10 for charge data and your Bulk and Absorb, they call it BOOST?,
     appear to be between 14.6V and 14.2V depending on TYPE  FLA = 14.6V

    And, what does this mean to me in my situation?

    There may not be a reason why you could not be able to use a positive common device or controller.
    All it means that all the positive points inside the controller are connected, instead of having all negative points connected like in a car.

    Hook your battery wires straight to the + and - on the '' battery terminal " at the charge controller.
    Hook your panels straight to the + and - on the "solar terminal" at the charge controller.
    Hook your load straight to the + and - an the ''load terminal'' at the charge controller. 

    Do not put jumpers/wires between any - minus terminals, this will make the controller to overcharge batteries and/or  loads to stay on since you bypassed the electronic internal switches with those jumpers since the negative is switched/controlled inside the charge-controller in a positive common system.

    Many controllers on the market are positive common controllers.

  • Re: 7.2 chest freezer conversion problems

    How are the batteries charged up?
    What size wires did you use and how long are they on the dc side?
    Got any power info on the chest-freezer.  Amps, volts, watts or kwh used etc?

  • Re: Can I wire the inverter from the solar charge controller's load output instead of battery?

    Most inverters will over load the ''load" terminals on the charge controller.
    Why not use a kill-a-watt meter on the inverter and this may give you the info you wanted or needed.

    There are also other meters out there that can measure DC volts and amps and ahrs and watts etc etc, just search the net.
  • Re: Beware when ordering from China I learned a hard lesson this week

    I ordered many things from China so far and never had any problems and never had to pay an extra free.
    I never ordered from ecoworthy either because I felt that their products are way overpriced for the quality they offer.