It is a well-known fact that people use solar energy due to its advantages. From the very beginning when this kind of energy started to attract more and more people, the prices started falling. Nowadays we have millions of such panels. The right question besides how much? is: “what panel should I get and how large?” Apart from this there is one more detail you can wonder about, how long will it last? There is one brand for small systems called a“Newpowa 30w Watts 12v Poly Solar Panel Module”. Long title but I found the best way to know is to read reviews that people are talking about the negatives as well as the positives. It's just when the positives are a lot more than the negs, I try to look closer.

The Newpowa 30w Watts 12v Panels are a technical improvement with new size, powerful cells and nice combination of materials. In running boat equipment, size is important as they say.

Due to customers` ratings at Amazon it gets 4.8 of 5 stars which is good because that crowd can make or break a brand. Of course another reason they have a large audience of solar buffs is their ability to deliver almost overnight if you're on the Prime system. Especially when you need the parts you're out of and only in dock or at a RV park for a short while.

Newpowa's are known for their high-productive weather resistant cells. The cells have been encapsulated in ethylene-vinyl-acetate you can find the abbreviation EVA. Also this cell is placed between the strained glass, that is also high transparent low carbon one, and a durable sheet that is actually made from TPT or in techie circles called tedlar-polyester-tedlar.

These panels are very qualitatively framed by using not just aluminum frames but high duty anodized frames. These frames provides incredibly exceptional rigidity of the panel. So this panel will surprise you with dimensions that offer you to place it where you could want. And the weight won’t store up future problems with transportation of this solar panel.

Usually in black and will fit each small places, making it a little bit innovative. Producing 30 Watts and created with the optimal weight capability it will be useful and suitable for any place you need to put it. The weight is only 6.31 pounds.

View on AMAZON

Comparing this panel with others you could notice that quality to price ratio is nice. Shipping fees might be free in some situations so that is a plus in deciding. Created in China this panel will be delivered to your doors and you will be satisfied with its quality. Thanks to clear instructions you won`t have any problems with using it.

Newpowa America Inc. is stateside supposedly and according to what I've read there is no need to worry about the quality of the product. It looks like components are from China but truthfully, you will be hard pressed to find anything made down to the component level that isn't made all over the place. You will need a degree in engineering and economics to trace everything down these days.


Informative vid about putting together your own system. He does a good job of explaining the basics and what you need for a small system. It may be a bit small and using al old car battery but when there's no power, this is very handy system to have around.

Video Transcript

I'm building a portable solar power supply to use on my boat so throw it make a quick video showing how it's done this kind of setup can be used for camping motorhomes boats or if you scale it up can be used as an alternative power supply for living off the grid I got all the parts I need from eBay for around $200 and I'll be using an old car battery to store the power from the solar panel a 40 watt 12 volt solar panel should be all I need to power my fish finder GPS lights radio water pump and a few 240 volt appliances if I was running a refrigerator I'd need at least 100 watts the power inverter converts 12 volt DC from the car battery into 240 volt AC 110 AC if you live in the States this one is rated to 1500 watts it came with these alligator leads to connect directly to the battery but I'll be adding a hundred amp circuit breaker to give it some overload protection this is the brain of the system a 30 amp charge controller you connect the solar panel and battery to it and it charges the battery to the correct voltage when the battery is fully charged it will either disconnect from the solar panel or direct excess power to the load output which you can use to heat water charge another battery run a 12-volt appliance or control a 12 volt relay connected to the inverter to run AC appliances being 30 amps means I can add more solar panels as needed the 40 watt panel I have only makes about 3 amps maximum this is the diode block all that to the positive wire coming from the solar panel it stops any power leaking back to the panel when the Sun Goes Down some panels have this built in already say don't have to worry about it and the waterproof clog for when I want to disconnect the solar panel I'm using an old car battery to store the power from the solar panel and run the inverter it has a fairly low capacity so I'll upgrade to a deep cycle battery eventually first of all connect the battery to the controller make sure to connect the wires to matching terminals positive positive and negative to negative the controller screen should light up and show the battery status I've already connected the diode block to the positive wire from the solar panel it only lets power for one way so no power is lost at night when the panel isn't charging if the panel has this built-in you won't have to worry about this step next I'll add the waterproof plug between the panel and controller usually I'd solder and seal all connections but for this demo I'm using terminal blocks the other end of the lead from the panel was connected to solar and put on the controller now I'll plug in the solar panel face it towards the Sun should start charging you can see here the solar panel is putting out 1.8 amps which the control is feeding into the battery it's pretty flat so take away water fully charged and the Sun is low on the horizon so output is quite low and full Sun would see closer to 3 amps the good thing about this control is you can adjust all the parameters by scrolling through with the mode button so it lets you choose the threshold for when the load comes on when the battery is full and when it cuts out again and you can adjust when the solar panel stops charging lunch or selected battery voltage has been reached I'll use this 12 volt spotlight to demonstrate how the load function works I've set the load threshold to 14 volts so when the battery reaches this level the controller sins exist power to the spotlight until voltage drops of 13 point 5 volts this prevents the battery from overcharging and that you use the excess power for other things you could charge another battery heat water control the relay to use AC power from the inverter before I connect the inverter to the battery I'll add a hundred amp circuit breaker to the positive lead this should cut out before any damage is done to the inverter if it overloads when connecting the leads to the inverter make sure they go on the right terminals red to positive and black to negative will turn it into a blue smoke generator you can see when I switch it on it uses some power even with no load so that's something to be aware of if you're not using it switch it off or have the power switch controlled by relay so let's put it to work I've got a 710 watt drove here it should only draw a few hundred watts when freerunning [Applause] handles it with ease next up an absorption fridge/freezer not the most efficient design they have a little heating element in the back there easy that's probably drawing about a hundred watts now I'll try the 800 watt toaster not a problem and theory this should squeeze out 1500 watts but I don't like to push it to its limits the battery is filling it down to about 10.8 volts that sound you can hear as the fan keeping the electronics cool so that's all there is to it how to set up a portable solar power plan if you're not confident working with high voltages best to get an electrician to check your work

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