Here you can find Solar Panels and technological accessories related to Solar Energy: Click Here If you want to learn about Solar...
Here you can find Solar Panels and technological accessories related to Solar Energy: Click Here
If you want to learn about Solar Panels, to advise you before buying or to build your own Solar Panel: Click Here
[Music] hello welcome to ranotec info so today we're testing solar panels 28 watt solar panels to be exact to see if and how well they work to do this we will be using the 28 watt solar panel charger from big blue you can pick this charger up off the zone for under 66 bucks assuming they don't offer you one of those five percent off coupon thingies i chose the big blue charger because big blue has a solid rep in the solar charger community its products are reasonably priced and because this particular charger has a digital readout so we can see the exact charge we are pulling down and i chose to test the 28 watt charger because i feel like it offers a nice sweet spot between balancing speed and portability in the past on this channel we have tested and reviewed solar power banks which while more portable only offered solar charging speeds of 1.5 to 6 watts depending on the number of panels on the other end of the spectrum you can certainly pick up higher watt panels but they are more expensive and less portable for this test we weren't looking for something to charge up a car battery or generator we just wanted something that could charge up our electronics like a phone or a tablet in a reasonable amount of time by the way if you are interested in the more portable solar power bank option and how well they work i will leave links to those videos at the end of this video and down in the description and if portable solar charging solutions are your jam you might want to think about subbing to the channel that's a great idea another thing you need to be aware of if you are kind of new to the solar charging game is unlike a solar power bank or battery these panels do not store charge you simply pull a charge to whatever device you have attached to it the upside to this is the device you're trying to charge can pretty much be whatever you want if you do want to store power you can plug these panels into a power bank however if you want to charge up your electronics directly without storing the power first you can do that too options are always nice for this test we are going to be charging up my 30 000 milliamp hour power bank to give a point of reference most phone batteries sit somewhere between 3 500 and 5 000 milliamp hours so once the bank is fully charged it should be able to charge a phone or even a tablet a few times over because it is such a large power bank it should provide us with a nice charging speed sample size and the digital readout will let us know our exact charge at any given time so here's how the test is going to go down at the start of every day i will place the solar panels and attach power bank on top of solar regeneration platform number two because solar regeneration platform number one is too small also if you didn't already know in order to make effective use of solar panels they really need to be placed outside you won't get much of a charge trying to charge anything indoors through a window because windows reflect photons and photons are the little particles of light needed to make solar panels do their thing everybody got that the sun will start to rise around 7 15 in the am come up over that hill providing direct sunlight from around 9 00 a.m to 2 30 p.m move up over the house and set at about 7 p.m in the evening providing about 12 hours of sunlight a day but more importantly about five and a half hours of direct sunlight a day and i say more importantly because as it turns out direct sunlight is really what matters more about that later also for the sake of consistency i will only be deploying the panels on sunny days so if i say it took two days or 10 hours to charge the power bank you can assume those days were clear and bright finally just know at the time of this testing it's mid-march and i'm located in the midwestern united states the temperatures and uv exposure here this time of year is pretty moderate so hopefully we can get some fairly typical results make sense not really great let's do it so after a couple of nice cloudless days we have some results it took two sunny midwest spring days for the 30 000 milliamp hour power bank to reach full charge while that may already seem like a decent result i think the real results are actually more promising than that while it did technically take two days to fill up the bank all the charging took place while the panels were in direct sunlight in direct sun the panels were usually able to draw about 2.1 amps or the equivalent of 10 watts of charge when the panels didn't have a direct line of sight to the sun it didn't pull any charge as soon as the sun passed over the roof of the house on both days all charging stopped so by the time this happened in the afternoon on the second day the bank had reached a 94 charge at that point i moved the panels to the front of my house where once again in direct sun the panels were able to finish charging in about 35 minutes this means it actually took about 11 and a half hours for the panels to fill a 30 000 milliamp hour battery which means in the right conditions the panels could easily charge a large phone battery in under two hours which i think is actually an impressive result one last thing just for the record i did bring the panels outside on a cloudy day and the panels were able to pull .7 amps of charge when the sun was directly overhead which is definitely better than the no charge we got with indirect sunlight but far less juice than we got on sunny days so at the end of all this what have we learned i think we have learned that portable solar panels can actually be a really nice way to keep your small electronics juiced up and it can be a legitimately useful and relatively inexpensive companion for extended wilderness excursions offering similar speeds to what you would find with a wireless charger or plugged into a wall with a small power brick or even significantly faster if you happen to be rocking one of these fossils now i'm not saying solar panels are the perfect charging solution obviously there are limitations weather time of year location and whether or not you have line of sight with the sun can greatly impact any solar charger's effectiveness but i think in most parts of the world if you are someone who finds themselves spending a lot of time away from the comforts of modern living but still want to watch cat videos picking up some portable solar panels could be a nice investment well that's all the information i have for one day if you have your own experiences with solar power please feel free to share those experiences down in the comments we can all learn from each other and make more informed buying decisions as always i hope you found this video useful thanks for watching and until next time this is randotechinfo signing out you ...
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