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PennyPA's avatar
PennyPA
Explorer
May 06, 2014

What voltage/wattage do my solar panels give?

The previous owners installed solar panels on the roof of the fiver we bought. We have decided we want to try some boondocking but I can't locate the previous owners and don't know how to find out what the wattage/voltage is of these panels. Suggestions? Would giving the size of them help?

5 Replies

  • If you have this controller it will display the voltage and current delivered by the solar panels to your battery. That won't be the rating of the panels but will give you an idea of what amount of charging is going on.
  • #1 - the unit is 12 years old and we have no paperwork for them
    #2 - we have a Specialty Concepts, Inc. Mark PV Controller with a Freedom Jazz on/off button mounted on the wall beneath it.
    #3 - we're in Las Vegas so plenty of sun. Shows 13.8 battery voltage, 0.0 array current, and 14.5 charge setpoint.
    #4 - I'll see if my son can get up on the roof to check for labels.
    #5 - There are 2 panels. Don't remember the size. Son can check that, too.
  • slip a smart phone/tablet under the panel and snap a picture of the label, all info will be there, or post how many amps the charge controller is putting out at noon and what type of charge controller it is and I can likely give you a ball park.
  • you mean theres NO paper work of any kind, any where, no receipts, nothing

    how are they mounted ?
    unbolt the panel from the mounting feet
    leave the feet attached to the roof,
    just removed a panel from the feet, flip it over/raise it up
    get the info from the back of the panel,
    its all there
    use digital camera to take a few pix of the info tag
    upload to PC, so it will be easy to read
  • Hi,

    See if you can find a make? How many panels are there? Do you have a multimeter of some kind? Is there a charge controller and if so what make and model?

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