If you are a boy, generate your own power! Realize a solar mobile charger that stimulates shame!

A popular project that enhances men's power (self-proclaimed) This time is an experiment on smartphones and solar panels!

I've been away from solar panels for charging smartphones for the last two years. After all, even if you charge using the A4 size panel, which was touted as relatively large at that time, it will finally be fully charged over a whole day. It was a time when the iPad could or could not be charged with the mobile battery, but the solar panel was at the level of whether or not the smartphone could be charged quickly.

For example, filling a bath with water in a bucket is a quick charge, whereas a solar panel produces too little power, and it's like filling a bath with a glass of beer from a ramen shop. Even if you fall into hell, such penance will be naive.

Then, what kind of solar panel can charge a smartphone quickly? That's what I made before.

I attached a large solar panel to the backpack and was able to output 5V 1.3A on a clear day.Solar cells are too legacy and weep

As a solar panel, it can finally be used, but instead it has become a white thing far from mobile. No matter how you look at it, it looks like you are walking with a water heater on the roof on your back! Moreover, the panel uses an aluminum frame, and the thickness is 2 cm with plenty of volume! The color and shape of the panel is also a great legacy compared to the current ones (laughs).

That's why I'm skeptical about solar panels, and I've only tasted bitterness, so let's make a dry criticism!

Actually, the figure of KanColle is ... the best solar panel! I got a call from the editorial department to such an ennui.

"Mr. Fujiyama, you said you wanted a figure of KanColle? For some reason, Shimakaze, Yukikaze, and Shigure-chan are on my desk. For some reason, there is also the latest solar panel. The ship girls want to meet Mr. Fujiyama ~ ♪ "

What? Damn! I wanted to come with a Lori character set instead of Nagato and Kongo sisters! Am I being seen through?

"Yes! I'll do it! Solar is the best!"

Ask me! Am I too honest with my life !? Honestly than solar panels ... no! I wanted to experiment with solar panels fiercely, so I connected my smartphone to the panel and left it outside on a sunny day (Editor's note: Kantai Collection is not necessary at all, but I respect my will It is posted as it is).

I was surprised to see the standby battery icon after an hour and a half! I was charging from 5%, but it's 76%! Looking at the app that monitors the battery status, it's definitely charged, and I'm in the quick charge mode with plenty of room!

Moreover, it is small and thin! Somehow, it's like me who is light, thin, short and small! (Editor's note: Not at all)

SUGOI SOLAR is a panel! Jojo Joe for its performance!

There are two solar panels sent from the editorial department. System Talks' "Sun Pad 10" (about 6000 yen) and "SUGOI SOLAR" (about 6300 yen). Commonly known as big and small. The smaller one (Sun Pad10) is A4 size, weighs 407g, and is about 3mm thick, which is the size of a general notebook. It's thin and compact, so it's easy to put it in a bag.

The smaller A4 size (right) is System Talks' "Sun Pad 10". The price is about 6000 yen on the mail order site! Valid! The left is the company's "SUGOI SOLAR". Can be folded in half and stored! The SUGOI series can't be underestimated because it comes out with a lot of fun. The price is about 6300 yen. Just a little expensive!

The larger one (SUGOI SOLAR) is the B5 version of "DEATH NOTE" size in the folded state. I don't think there are many houses without DEATH NOTE these days, but for those who don't, it's the same as KOKUYO's "Campus Note B5". It's just hard, so it doesn't fold into a pettanko, and it looks like it has a grimoire. After all the thickness is 3mm and it is explosive.

I repented of my immaturity with my solar panels, so I tried to find out how much power each could generate. seriously. I used an integrated wattmeter to check the performance of the mobile battery. Instead of a mobile battery, connect a solar panel, and usually connect a smartphone to the other.

But! When the smartphone is fully charged, it no longer uses the power of the solar panel, so here we always connect a resistor that consumes the power during quick charging (about 1A).

Compare two solar panels side by side. The USB integrated power meter is white and has a display.The fan is attached to the load that can simulate the low speed and quick charge of the smartphone

The following graph shows the amount of power that can be generated in one day.

Since it is a solar panel, the amount of power generated varies greatly depending on the weather. In the first place, the sun is low and the light is weak, and it is crazy to experiment with solar panels in winter when the daylight hours are short (laughs). From May to July, when good results come out, Yal's media and writers are futu. But! Our stupid article team dares to do it in winter! That is ASCII quality. No, it's not a fool, it's a challenger.

Aside from my little words, I was peeing when I saw the amount of electricity generated in fine weather! Jojojo! If you have a regular smartphone, you can charge it a couple of times! Even Android smartphones that you can't replace the battery yourself these days can be charged more than once with plenty of room! This is amazing!

USB integrated wattmeter. The current voltage and current can be recorded in the upper row, and the integrated power can be recorded in the lower row. Having one is convenient for checking the performance of mobile batteries.You can buy it for about 2000 yen

Both "SUGOI SOLAR" and "Sun Pad 10" are panel! Tsuka, System Talks, which always finds Koyu from the world, is also amazing!

It is also excellent that it can generate 4000mAh even on days when it is cloudy all day and not exposed to direct sunlight. I feel like it can be used as a substitute for a mobile battery! By the way, the days when it seems to rain are the days when the clouds are so thick that you want to turn on the lights in the living room. As expected, it seems that power cannot be generated at this point.

Large panel for tablets, small panel for smartphones

Some people may have thought "that?" By looking at the previous power generation graph. The point is that the power generation does not change regardless of the size of the panel. The person who noticed is sharp! I've done it, I feel like it. Because, in the previous experiment, instead of charging the smartphone, the experiment was conducted by passing a current similar to that when charging the smartphone quickly.

But this solar panel seems to be able to generate more electricity. Since the author was underestimating the performance of the solar panel, the limit value data could not be obtained, and the amount of power generation was the same regardless of the size. Therefore, in order to investigate the performance difference between the two sizes of panels, I re-experimented to investigate the maximum output.

The current fluctuates considerably in a small panel. The minimum of fine weather is 1.2A, and the maximum is 1.77A.

The experiment was on a cloudless blue sky day. The small solar panel constantly output 1.3A, and depending on the Gokigen, it instantaneously output up to 1.7A. On the other hand, the large panel keeps 1.6A perfectly, while the small panel has unstable current. The difference in magnitude seems to be in the stability of the current.

SUGOI SOLAR, which keeps 1.6A perfectly, panel size

So if it's big, it's not good, it's good to buy it like this.

Small panel for regular smartphone users

If the charger that came with your smartphone when you bought it (many models don't come with it recently, but it should be mentioned in the manual) is 1A output, you can use a small panel. Even if you buy a large one, it will charge faster, and it is not a reason that you can charge even if it is a little cloudy.

Even if it's a little cloudy, it's OK to fully charge it in two and a half hours!

Large panel for smartphone users with built-in large capacity battery

In fact, the smartphone charging mode includes a super-rapid mode in addition to low-speed and rapid. This is the charging mode used mainly for models with built-in large-capacity batteries and tablets that do not allow you to replace the battery yourself. If the attached charger is 1.5A to 2A, you can charge it faster than the small panel by purchasing a large panel.

It is also attractive that it can be folded and stored

(On the next page, "Finally the main subject !? How to move with a solar panel")