Connecting 2 45 Watt Solar Panels

Make the harbor freight 45w solar panel charge controller useful with a simple mod.

Connecting 2 45 watt solar panels.

Putting panels in series makes it so the voltage of the array increases. Like many of us who are interested in solar power i bought a harbor freight 45 watt solar panel kit for about 150 which came with three solar panels and a charge controller. When the wedgie is open the roof hinges over 180 degrees and becomes the base of our bed. Now lets look at connecting solar panels in.

In comparison to voltage and current watt is not a major issue. It s all in the wiring. For example a 110ah battery should never be connected to a panel more than 11w without a solar controller and if you are using a solar controller you do not need a blocking diode. The 140w panel actually drags the 3 other 160w panel s wattage down to 140w as well meaning we effectively have 4 x 140w solar panels.

The wedgetail camper has two solar inputs via red anderson plugs. So if you connect two solar panels with a rated voltage of 40 volts and a rated amperage of 5 amps in series the voltage of the series would be 80 volts while the amperage would remain at 5 amps. The first is on the roof. Solar power authority staff we recently received the following question from one of our users.

This is important because a solar power system needs to operate at a. Is it ok to connect a 100 watt and a 45 watt solar panel together. So when connecting solar panels in series always try to keep the electrical properties of the solar panels identical to get the full benefit of the solar array. As clearly visible in the picture it will be enough to wire the positive pole of one panel to the positive pole of the other one and then wire the negative pole of one panel to the negative pole of the other one.

Connecting different watt solar panels by. Whenever you connect with each other a 60w solar panel to a 100w panel in series the gross hooked up power is likely to be 160w given that the two solar panels are of identical ampere rating. It was exciting times when i set it up several months ago to see the fr. The higher voltage helps with the voltage drop caused by the large distance and allows the amperage to reach the controller efficiently.

If we have two solar panels with same voltage and power the connection will be very simple. If you are connecting two 100 watt panels in series and each panel has an output of 18 9 volts you will end up with 200w 37 8 volts and 5 29 amps under optimum conditions.