25 Watt Solar Panels As you can see below there are different styles. Some 25 watt panels are completely portable. They can fold up like a laptop case and placed in your tote bag. Use it for your phone, tablet, etc. And then there's the panel modules that go anywhere from your back porch, camper to your boat. Some attach to frames and some are free standing.

I was looking at one that has an interesting suction mount that is lever release. Seems to have the ability to hold well. Of course I wouldn't leave it on anything moving down the highway for example. There are plenty of times it would be nice to have a panel with a quick mounting option for a secure fit. One example might be when the wind is a little brisk.

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I was reading some info on how a guy was living out of his van using solar most of the time. Had a nice 2000 dollar system so he was all set. He was asked to test out a 25 watt panel. He said the first thing that crossed his mind was what am I going to do with that? He's used to 100 watt panels. So he got to thinking that a lot of times when he's away from the van, like biking he has power requirements. Mainly he likes to listen to his cell phone music and he also was using a GoPro on his helmet. Then he thought that would be cool to keep those items charged up during the day. Especially in situations where he was away from the van for awhile.

Then he decided the way it unfolded he could also use it on his backpack or even spread out over the back of his motorcycle. It could also be used in a coffee shop. Lots of times when they are crowded the plugs are being used to he thought since the panel was small enough he could put it in the window and get what he needed.

The second question is how well do they work? Does cloudy days matter? I would bet some but the panels of today are sooo much better with cloudy days. There are improvements constantly of even the same model I noticed on Amazon, so the companies are paying attention to feedback from buyers in the field. The one I was looking at had 2 usb output ports and had a nice zipper.

Also came with some nice carabiners (metal hooks) to secure it to backpacks. So this little 25 watt fold able panel is looking better to this reviewer so he pull out his iPhone and tablet. It jumped right on the iPhone but not when he plugged in the tablet, he had to unplug the phone and then the tablet kicked in starting to charge nicely. The interesting thing is after the tablet was plugged in he was able to then plug in his iPhone. Maybe the stronger current pull has to lead off?

He was charging nicely after that. One interesting thing is notice in reviews that if people are talking about the snugness of the USB connectors. I know from using a lot of office equipment that sometimes plugs just seem different sizes....not loose but some seem to be almost too tight to the point you have to check to see if you have the right USB connector. Big difference when he got pointed directly at the sun but this isn't really a surprise to anyone. So in no time he goes from 54% on the phone to 83%,,,or should I say in normal charging time using solar he had that bump. So that is impressive.

Right when the amps were measured he was getting 2.4 amp so that's not too shabby for a 25 watt panel.
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Here's info I picked up from the web on Hyundai panels. Which can be found in bulk in the listings above, if it's not showing now just click on any of the ebay pics above and you will be taken to the solar panel section, from there put in Hyundai Solar panel.

Hyundai Solar Cells are a product of Hyundai Heavy Industries, one of the largest companies in South Korea. Founded in 1972, also a Fortune 500 company. They are known world wide for their green energy products. A lot of their panels can be found online. Often times in bulk for the single user or contractors that supply solar needs to their clients. As far back as 2012 their company global sales were over 60 billion to give you an idea of it's size. They continue to invest heavily in renewable energy products.

Polysilicon Solar, Wafers Solar Cells, Solar Modules, Solar Systems are available across the net.

MG Series

Multi-crystalline Type

Dimensions 983 mm (38.7”)(W) × 1,645 mm (64.76”)(L) × 35 mm (1.38”)(H)
Weight Approx. 18.5 kg (40.8 lbs)
Solar cells 60 cells in series (6 ×10 matrix) (Hyundai cell, Made in Korea)
Output cables 4 mm2
(12AWG) cables with polarized weatherproof connectors,
IEC certified (UL listed), Length 1.0 m (39.4”)
Junction box IP65, weatherproof, IEC certified (UL listed)
Bypass diodes 3 bypass diodes to prevent power decrease by partial shade
Construction
Front : High transmission low-iron tempered glass, 3.2 mm (0.126˝)
Encapsulant : EVA
Back Sheet : Weatherproof film
Frame Clear anodized aluminum alloy type 6063

Nominal output (Pmpp) W 240 245 250
Voltage at Pmax (Vmpp) V 30.5 30.7 30.9
Current at Pmax (Impp) A 7.9 8.0 8.1
Open circuit voltage (Voc) V 37.7 38.0 38.2
Short circuit current (Isc) A 8.3 8.4 8.6
Output tolerance % +3/-0
No. of cells & connections pcs 60 in series
Cell type - 6” Multi-crystalline silicon (Hyundai cell, Made in Korea)
Module efficiency % 14.8 15.2 15.5
Temperature coefficient of Pmpp %/K -0.43 -0.43 -0.43
Temperature coefficient of Voc %/K -0.32 -0.32 -0.32
Temperature coefficient of Isc %/K 0.048 0.048 0.048

They also produce the Black Black MG series

Dimensions 983 mm (38.7”)(W) × 1,645 mm (64.76”)(L) × 35 mm (1.38”)(H)
Weight Approx. 19.0 kg (41.9 Ibs)
Solar cells 60 cells in series (6 X 10 matrix) (Hyundai cell, Made in Korea)
Output cables 4 mm2 (12AWG) cables with polarized weatherproof connectors,
IEC certified (UL listed), Length 1.0 m (39.4˝)
Junction box IP65, weatherproof, IEC certified (UL listed)
Bypass diodes 3 bypass diodes to prevent power decrease by partial shade
Construction
Front : High transmission low-iron tempered glass, 3.2 mm (0.126˝)
Encapsulant : EVA
Back Sheet : Weatherproof film
Frame Clear anodized aluminum alloy type 6063 (Black)

MI Series

Dimensions 987 mm (38.86”)(W) × 1,965.5 mm (77.38”)(L) × 50 mm (1.97”)(H)
Weight Approx. 29.0 kg (63.8 Ibs)
Solar cells 72 cells in series (6 × 12 matrix) (Hyundai cell, Made in Korea)
Output cables 4 mm2
(12AWG) cables with polarized weatherproof connectors,
IEC certified (UL listed), Length 1.2 m (47.2”)
Junction box IP65, weatherproof, IEC certified (UL listed)
Bypass diodes 3 bypass diodes to prevent power decrease by partial shade
Construction
Front : High transmission low-iron tempered glass, 4.0 mm (0.157”)
Encapsulant : EVA
Back Sheet : Weatherproof film
Frame Clear anodized aluminum alloy type 6063
Electrical Characteristics
M


Cool video, a couple of different panels.

Video Transcript

hi folks I've mounted my solar panel I just put the solar panel on this metal roof that I've got covering my porch and I've got it no more or less semi-permanent setup here it is temporary but I want to have it up there probably at least a couple weeks so I wanted to do at least a half decent job of putting it up there neatly and so that it won't get tangled up now it's going down and to the bottom of that window which is the window to the room where I have my where I have my portable power pack and also my PWM charge controller and I'll show you how I got it in there so what I did is I actually drilled a hole in the corner of that screen and then through the window window fittings itself and I put a small hole and I wanted it for the window with clothes and the the wire wouldn't get all crimped up or anything but I also wanted to have it so that I could plug up those holes once I'm done doing this so here is my little setup and got inside the room now and makes it easier to see these lights it's hard to see these when it's all them the bright Sun but that bright one on the Left means that I've got a charge coming from my solar panels and the one next to it in the middle is what that means when it's green like that is that it's charging the battery if that was flashing then the battery would be completely charged so I'm going to wait and see how long it takes to charge up this portable power pack using that 80 watt panel or the 240 watt panels that I have up on the roof now and I'm going to guess it's only a guess that that will be completely charged by by this evening sometime probably around six or seven and it's May 25th right now so the Sun stays up for a good long time we're going to end it's a bright sunny day out there there's not a cloud in the sky so I should be able to get this whole thing completely charged up in that length of time we'll see this is a this is an unexpected result now I've only had this set up now plugged into the battery on this power pack here I've only had it set up for about an hour and when I started the the battery was a little bit over 12 volts and now it's over 13 volts and this charge controller is saying that it's completely and fully charged and I really wasn't expecting it to take such a short amount of time it's far faster than I thought it was because when I use the AC charger it came with this power pack takes a long time to charge it up takes a you know to start with you're supposed to charge it for thirty four hours and then or is it 48 I forget and then no longer than 34 after that and so I'm I'm very amazed that it took such a short amount of time to charge up that battery I had it at the low power I used it powering up some some lights and in the house here and I used it and ran that battery down now it's already charged up and it only took a it only took a little bit more than an hour I didn't exactly time it but it wasn't a long time so I'm pretty surprised and anyway that that's about it for this part of it now the next part of the to buy a 35 amp hour sealed battery and there's one on Amazon that I intend to buy and it cost $65 and once I get it and hook up the power pack to that battery then this experiment will be more or less complete I'll I'll just hook that up and power some things with it and I'm probably also going to get a different inverter than the one that I have the one I have is pretty small I'm going to buy one from Harbor Freight yeah I know Harbor Freight sucks but I think this will be okay I really do it's going to be a fairly large power inverter and we'll have to just see what happens once I get it so that's it for this video thanks for watching

25 Watt Solar Panels that have been located here
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