The actual measurement of solar panels can charge how much electricity a day
I use a 100W folding solar panel, folding is easy to carry and does not take up too much space.
Note that you must buy monocrystalline silicon solar panels, polycrystalline silicon, although slightly cheaper, but the conversion efficiency is much lower.
This 100W folding solar panel storage like a tote bag, measured when folded up size is 40CM long, 50CM wide, 5CM thick, net weight 4KG. this size and weight of any car can easily put down it:
After unfolding a total of 4 panels, each 25W, the measured size after unfolding is a total length of 171CM, width 51CM, covers an area of not very large. Note that this folding solar panel substrate is Oxford cloth, only suitable for travel use, in fixed places to use must buy aluminum alloy frame, otherwise the wind and sun under the substrate is easy to damage:
There are some parameters of the battery panel on the top of the panel. I have a 100W one, the voltage can reach 18v at maximum power and the current can reach 5.6A.
Battery board output wire is average, I guess it can not withstand multiple tossing, it is recommended that the set of winding wire protection tube. Comes with a 55 * 2.1 round hole connector, you can also convert the connector according to your power supply, battery situation. The battery board also comes with two USB ports, which can provide up to 5V 2A output and can be directly connected to cell phones and other devices for charging. Usually these wires can be stored directly in the solar panel with the bag:
55 * 2.1 is a more common interface, I 3 outdoor power supply are using this interface, of course, there are some more special, such as this Fixnow outdoor power supply has a special solar panel interface, I made a line can also be used. Note that before use must be implemented whether your power supply supports solar charging input, support for solar input generally have a relatively wide range of voltage, such as I marked this support for 12V-30V input voltage. Directly to the battery, battery charging requires the installation of solar controllers, solar panels do not contain any protection circuit, which may cause overcharging.
Measured the solar panel open circuit voltage can reach 20.3V:
This 100W power solar panel theoretically sunshine 8 hours then you can get 100WX8H = 800WH power, sunshine 10 hours can get 100WX10H = 1000WH power, that is, 0.8 degrees and 1 degree electricity. But the reality is difficult to have such an ideal sunlight environment, the actual effect will certainly be discounted, but how much is this discount specifically? I then spent a few days taking the opportunity to travel and conduct several all-day tests in several locations, all under sunny weather. Due to the different regions, sunshine intensity, sunshine time, altitude and temperature, it is impossible to know the exact results for reference, and the results can be used for estimation.
First of all, this small outdoor power supply can store 0.3 degrees of electricity for testing, theoretically with 100W battery panel 3 hours to give it a full charge? In fact, the test found that the DC input port charging power of this power supply is limited to 30W, 100W solar panel is limited to 30W, very wasteful, buy battery panels or outdoor power must be clear when the maximum charging power of the power supply:
Later on the entire use of this can store 2.2 degrees of power Fixnow outdoor power for testing, even with the maximum power to charge him also need 2 days to be full. Note that the wind is strong in the mountains, the solar panel must do a good job of wind protection measures, easy to be blown away:
In order to accurately know the solar panel charging power and charge power, I connected a multifunctional ammeter in series in front of the power input, this ammeter can use Bluetooth and cell phone connection, and can plot the curve in real time for analysis:
First measured in places where the sun does not shine directly, the power can only reach about 12W, that is, cloudy days or back shade this solar panel is basically nothing:
Put the solar panel to the place where the sun can shine, the power reached more than 40 W. This was tested at 10 a.m. in Shenzhen, the morning sunlight is relatively soft, can only reach this power:
By 11 o'clock the charging power reached more than 70W, not far from full capacity. Note the curve, the sun can sometimes be suddenly covered by clouds, so this power is floating:
By 12 noon when the power can sometimes reach 85W, the peak can even reach 100W power
By the afternoon, the charging power can reach a maximum of about 80W. Looking at the curve, we can learn that the power fluctuation changes particularly large, because the sun is constantly blocked by the clouds:
From 10:00 a.m. to close to 3:00 p.m. when a total of 5 hours of testing, the accumulated charge 257Wh, or 0.25 degrees of electricity, on average, can be charged 50Wh per hour, which is about the ideal conditions * 0.5. Comprehensive test results for several days, the actual charging efficiency of solar panels in the summer in Shenzhen can be used 0.5 this average coefficient, that is to say, buy 100W panels, in sunny weather conditions can be charged 10 hours a day to get 0.5 degrees of electricity; 200W panels can get 1 degree of electricity, with power * 0.5 is about the same. But one thing to note, you want to buy a larger battery plate to reduce the charging time, pay attention to the power supply are charging power limit, such as limiting the power of 50W charging, you buy 200W battery plate is a bit of a waste, but buy 100W is no problem, because it is impossible to reach full capacity at all times.
We specialize in manufacturing mono and polycrystalline silicon solar PV panels, solar cells, solar power systems, flexible solar panels, folding solar panels, solar EVA film, solar water pumps and solar street lights. We have a professional team to serve each customer professionally according to their requirements.
Our products have passed TUV certification. CE.IEC61215.ISO9001.CGC and ROHS certification and have been widely recognized and well received by our customers.
Support OEM/ODM
Let's take a trip, act now, and together we can use low-carbon energy-saving products to protect our living environment and add convenience to our trip through teejoin SolarPanel.
Teejoin SolaSystem Manufacture Tony is already very tired, wait for me to take a break and give you statistical conclusions！
Tel: +0755-2377-1505
Email: sherrishi@teejoin.com
Address: A1-1, Mingjun Ind. Zone, Dalang, Shenzhen, Guangdong, China
（Reproduction without permission is prohibited.）