» Altern. energy » Solar power »Solar panel and charging station in one bottle

Solar panel and charging station in one bottle


Hello everybody. A charging station for a phone or tablet can be assembled from a dead monitor. We disassemble the 15 "monitor and pull out everything that is possible from it. We will need a body and a matrix frame.



Back view. The leg turns.


We insert 8 Li-Ion batteries into the case for a voltage of 3.7 volts soldered in parallel.


For the solar panel, I took 6 volt 200 mA modules measuring 6 cm by 11 cm and soldered them in parallel.
And put it in the upper plastic frame.


To charge the batteries, I purchased a 6V charger. It has a USB 5 V output


Then we solder everything and assemble in the reverse order. We insert the case of the power supply holder into place, since there is a place on the bottom for attaching two USB sockets

Next, insert the empty frame of the matrix into it, lay the soft foam.

It remains to insert the solar module and fix all the screws. Install the design on the windowsill and charge your gadgets.

Now the monitor will look out the window and we will look at the back where the charging sockets.
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21 a comment
Author
Quote: Valery
And I would throw them away.

I charge these to 4.15 volts ... I wait a month - if the voltage does not drop ... I use it for my own purposes.
Quote: Valery
Because for lithium such a discharge is a drag.
Either they were lying around for a very long time, or they were "sucked out" by some Chinese blocking generator. You can restore it, only up to 3 V must be charged with a small current.
I put 4 lithium batteries with a voltage of 0.80 volts for charging at night


And I would have thrown them away .... Well, I would not have thrown them out in the literal sense. For some weak purposes I used ... Because for lithium, such a discharge is a jerk .... The characteristics are already there ... ay-ay-ay ...
You would rather not be idiotic, but try to answer the question that you are asked, and not the text addressed alexgameplay.
Author
Quote: Ivan_Pokhmelev
Following your logic, charging is carried out from an alternating voltage of 230 V.

I deceived you a little - I take the coal rod from the battery and immerse it in a capsule with a solution of a homogeneous non-chemical substance with an acidity higher than critical. When connected, I get 220 volts but 10 Hz I go out to the 50 Hz curve, set the proportion and have 12 volts.
How then is charging up to 4.1 V?
Following your logic, charging is carried out from an alternating voltage of 230 V.
Quote: Ivan_Pokhmelev
Not. The charger of a lithium-ion battery in the most primitive version is a current source of not more than 1C with a voltage limit of (4.1 ... 4.2) V.


Maybe we are talking about different things and each has its own concept of proper charging of lithium-ion batteries. You charge your phone / tablet from a USB / laptop / computer, there is a stable 5V. It is clear that for lithium below 3 and 2.7V and above 4.2V death.
Author
Quote: Ivan_Pokhmelev
Is it about different blocks?

There is nothing about one, 3.7 volts are supplied to the battery output, and USB produces 5 volts.
Quote: Coudeyar
This unit does not give more than 3.7 volts

Quote: Coudeyar
were fully charged ... voltage 4.10

Is it about different blocks?
Author
Quote: alexgameplay
On a bright sunny day, on the street, they will give 2A panels, because you have 10pcs.

I didn’t measure everything, but I measured one, it gave out 0.2 amperes .. all according to the parameters. The voltage is even higher than the declared -7 volts.
Author
Quote: Ivan_Pokhmelev
Moreover, the limit (4.1 ... 4.2) V is not exceeded. It just does not charge fully, but it also significantly extends the battery life.

I put 4 lithium batteries with a voltage of 0.80 volts for charging at night on a night, they were fully charged in the morning, the meter had a voltage of 6,500 mA at 4.10 .. the green light was on.
Quote: Coudeyar
This unit does not give more than 3.7 volts
Moreover, the limit (4.1 ... 4.2) V is not exceeded. It just does not charge fully, but it also significantly extends the battery life.
Author
Quote: Ivan_Pokhmelev
The charger of a lithium-ion battery in the most primitive version is a current source of not more than 1C with a voltage limit of (4.1 ... 4.2) V.

Not necessarily. This unit does not give more than 3.7 volts, measured.
Quote: alexgameplay
The charger of any lithium battery is a 5-volt constant voltage source, capable of delivering a current equal to about 0.5-1.0 of the battery capacity for charging.
Not. The charger of a lithium-ion battery in the most primitive version is current source no more than 1C with voltage limitation at the level of (4.1 ... 4.2) V.
Quote: Coudeyar
The declared parameters are 200 mA \ 6 volts one socket.


Yes, of course I read. I was interested in a slightly different question. On a bright sunny day, on the street, they will give 2A panels, because you have 10pcs.

Your stationary option is great for a summer cottage, in which sometimes the voltage disappears, or not at all. I tilt the monitor panel slightly towards the sun and charge my darling battery.

On ebee much cheaper than on Ali. It’s a little bit poor in their parameters. Indeed, neither what nor what. More precisely, not what I needsmiles
Just with lithium battery you need to be careful. The charger of any lithium battery is a 5-volt constant voltage source, capable of delivering a current equal to about 0.5-1.0 of the battery capacity for charging. For example, if the battery capacity is 1000 mA • h, the charger should provide a charge current of at least 500 mA, and nominally 1 ampere. Therefore, I asked you about the capacity of your batteries.

I use LiitoKala charger (from the network of course), for the price and quality this is the golden mean. But I have not dealt with such a solar charger, so I am interested.

Author
Quote: alexgameplay
Thanks. 1 idea - 1 euro? )

NEP !!
Quote: Coudeyar
Now I have 100 pieces in stock. The price is 100 euros. 5 year warranty. Order!


Thanks. 1 idea - 1 euro? )
Author
Quote: alexgameplay
Original idea

Now I have 100 pieces in stock. The price is 100 euros. 5 year warranty. Order!
Author
Quote: alexgameplay
And the current of the solar panels did not measure under the bright sun? Are the panels coming to the declared parameters? Did you take the charging unit on Ali? What is the capacity of lithium batteries? Do not tell the voltage / current output from charging to the battery? If possible, please describe the principle of operation of your charging unit, its parameters. It may come in handy for the future.

Hello! The current of the panels was measured on the windowsill through the glass -1 amperes. The declared parameters are 200 mA \ 6 volts one socket. Read the block parameters on ebay \ 5V Solar Charger Receiver Module Solar Controller 3.7V Lithium Battery Charger \ hammer in the search. I load 8 lithium batteries on the unit .. charging is excellent. The output on block 3.7 no longer gives the stabilizer. The input from the panels is 5-7 volts ... I have been doing it for a long time - it behaves perfectly.
Original idea ok And the current of the solar panels did not measure under the bright sun? Are the panels coming to the declared parameters? Did you take the charging unit on Ali? What is the capacity of lithium batteries? Do not tell the voltage / current output from charging to the battery? If possible, please describe the principle of operation of your charging unit, its parameters. It may come in handy for the future.

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