DIY - SOLAR BATTERY CHARGER - lithium battery pack
Hello everyone, I'm back with this new tutorial.
In this tutorial, I will show you how to use the TP4056 chip to use solar energy or simply use the sun to charge a lithium 18650 battery.
Wouldn't it be cool if you could charge your phone's battery with the sun instead of a USB charger.
You can also use this project as a DIY portable power bank.
The total cost of this project, excluding the battery, is less than $5.
The battery will add another $4 to $5.
So the total cost of this project is about $10.
All components can be sold at very good prices on my website, linked in the description below.
Step 1: hardware requirements for this project we need: Step 2: How does TP4056 work, we can see that it has TP4056 chips and several other components we are interested in
There are two LEDs on board, one red and one blue.
The red one turns on while charging, and the blue one turns on when the charge is complete.
Then there is this mini USB connector that can charge the battery from an external USB charger.
You can also weld your own charging unit on these two points.
These points are marked as IN-
We will use these two points to power the board.
The battery will be connected to these two points marked BAT and BAT-
(Self-explanatory) the circuit board requires an input voltage of 4. 5 to 5.
There are two versions of the motherboard on the 5 v rechargeable battery market.
A module with battery discharge protection and a module without battery discharge protection.
Both boards provide 1A charging current and then cut off after completion.
In addition, when the battery voltage drops below 2, the power supply with protection turns off the load.
4 V to protect the battery from running too low (for example on cloudy days )-
Can also prevent excessive
The voltage and reverse polarity connection (it usually destroys itself, not the battery), but please check that you connected it correctly for the first time.
Step 3: the copper plates get very hot, so I will weld them over the board.
To achieve this, I will make the leg of the board using hard copper wire.
I will then slide the device in the legs and weld them together.
I want to put 4 copper wires into the 4 legs of this circuit board.
You can use it too-
To achieve this, replace the copper wire with a male fragile pin head.
Step 4: Assembly is very simple.
Solar cells are connected to the inside and inside of the TP4056 battery charging boardrespectively.
The forward end of the reverse voltage protection is inserted into the diode.
And then bats and bats.
The board is connected to ve and-
Both ends of the battery.
We just need to charge the battery ).
Now, in order to power the Arduino board, we need to increase the output to 5 v.
So, we added a 5 v voltage booster to this circuit. Connect the -
The ve of the battery is-
Add the booster and ve in by adding a switch between the two.
Okay, now let's see what I did. -
I have connected the lift plate directly to the charger, but I recommend installing the SPDT switch there.
Therefore, when the device is charging the battery, its unique charging and the input that the unused solar battery is connected to the lithium battery charger (TP4056), the output of which is connected to the 18560 lithium battery. A 5V step-
The up voltage booster is also connected to the battery for conversion from 3. 7V dc to 5V dc.
The charging voltage is usually at 4. 2V.
The input range of the voltage booster is 0. 9 to 5. 0V.
So it will be seen around 3.
Input 7 v, 4 when the battery is discharged.
2 v when charging.
The output of the booster to the rest of the circuit will hold a 5 v value.
Step 5: testing this project is very helpful for remote data logger.
As we know, the power supply is always a problem for remote recorders and most of the time there is no power outlet.
This situation forces you to use some batteries to power the circuit.
But eventually the battery will run out.
The question is do you want to go there and charge the battery?
For situations like this, our cheap solar charger project will be a great solution to power the Arduino board.
This project can also solve the efficiency problem of Arduino during sleep.
However, sleep can save the battery, and the sensor and power regulator (7805) will still consume the battery in idle mode that runs out of the battery.
When we use the battery, we can solve our problem by charging it.
Thanks again for watching this video!
Hope to help you.
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Thanks, ca is in my next video.