diy aa batteries!

Today, we will learn how to easily make our own batteries with very cheap home materials.
AA battery is a standard size cylindrical battery commonly used in portable electronic devices.
The exact end voltage and capacity of the AA size battery depends on the chemical properties of the battery, but usually the rated voltage is 1 or close to 1. 5 volts.
AA cell measurement 49. 2–50.
5mm long, including terminal and 13. 5–14.
5mm in diameter.
AA batteries account for more than 50% of the average battery sales, and the average price of high-quality AA batteries ranges from $0.
$59 to $1. 42 or more.
Think it would be helpful to do so in an emergency?
Is this a viable renewable energy source?
Is this a good way to teach children Science?
To get started, the materials you need include :-(1)
Corrugated slats (Cardboard Box)-(12)
Copper flat gasket]Size 10]-(14-16)
Zinc plain gasket]Size 10]-(1)
Shrink bag tube]2. 5\"x1\"]-(4oz. )
Distilled water-(1oz. )Vinegar-(4 Tblspns)Table Salt (NaCl)
You also need the following tools :-Soldering Iron-Solder-Mixing Bowl-
Digital MultimeterScissors-Sand Paper-
Needle and nose pliers-Lighter (or Heat Gun)-
Old AA battery (for reference)
Copper and zinc flat washers will be used as the anode and cathode of the battery, separated by electrolyte.
The battery will be made of 11 batteries in series to create a solid 1. 5 volts.
The copper and zinc washers should be clean, free of debris, polished rough with 100 sandpaper and wiped to shine.
Next, we will cut our corrugated board into 11 squares.
These will serve as a tiny sponge for the absorption and suspension of electrolyte between copper, zinc anode and cathode.
When cutting cardboard squares, make sure they are the same size as the gasket.
If they are too large, they will produce a short one;
They will not be able to maintain enough electrolyte if they are too small.
When done, put them aside.
The voltage is the potential difference between copper and zinc we found.
The electrolyte is the medium through which this charge can pass.
To prepare the electrolyte, first stir 4 tablespoons of salt into 4 ounces.
Until the water reaches the maximum salinity, the salt is no longer dissolved.
The appearance of the water should be milky white.
Be sure to mix well before adding vinegar.
Add 1 ounce once resolved.
Vinegar, mix, let sit.
When your electrolyte mixture is placed for about 5 minutes, you can insert the cardboard square to let it soak.
Be sure to drown all the squares, stir and let them float until they are ready to use.
To ensure tight fit, we have selected shrink packaging with a diameter of slightly less than the gasket.
In order to insert the washer and paper block, we need to stretch it temporarily.
Insert a closed needle nose clamp and open slowly while working around until stretched to 110% in diameter.
Repeat on the other side.
When placed horizontally in the tube, the gasket should now fit closely.
As mentioned earlier, we will build 11 batteries consisting of copper, electrolyte and zinc.
We will make a battery to test our components before building the battery.
Simply stack a copper wash, a square of soaked cardboard, and place a zinc wash on it.
Next, we will test with our digital multimeter.
The red wire should be in the press slot, and the black wire and multimeter in the COM slot should be set to 20vDC or nearby.
Then, connect the Black leads to the copper washer, connect the red leads to the zinc, make sure they are isolated from each other, without contact or anything else.
Now you should be able to see the display between 0. 05 and 0. 15 volts!
If your reading is higher than this, don\'t worry, the voltage may rise but decrease.
If what you are reading is below this value, please check your component and try again.
If the reading is zero, check the contacts and make sure the multimeter is set correctly.
Before you start, look at the images that show how the battery structure makes the battery.
Attention order: copper, zinc, electrolyte, repeat.
To build the core, we will stack the components to make sure they are flat and have no space and will not compress the electrolyte mixture.
First insert a copper wash that pushes it 1/4 from the end and make sure it is straight horizontally.
Next, drop a zinc washer on it and add a soaked electrolyte square.
It is helpful to push the cardboard evenly down with a pen or nail, just make sure not to press hard.
Then repeat, copper, zinc, electrolyte, tap, copper, zinc, electrolyte, tap. . .
Until the last zinc gasket is on the pile head.
Before sealing the battery, please compare with the standard AA battery to make sure the length is correct.
If necessary, add additional zinc washers before reaching the correct length.
Please note that the nub that stands out on the front will add welding later.
Once the correct length is reached, start heating the end you start using and make sure the seal is firm.
Then heat the side of the battery until the heat shrink tube is closely aligned with the ripple of the gasket.
Then, trim the excess part and leave only 1/4 \"and heat it until a tight seal is formed at the other end.
Now we have to add our terminals.
Insert the soldering iron and wait until it is hot.
Fix the copper side of the battery up (
The side you started).
Then, when you keep the soldering tin above the hole formed at the end of the battery, you apply the heat to the soldering tin.
When it melts, press the solder into the hole until it is complete and finish with a small piece of solder on the top.
Once cooled, flip your battery over so the zinc side is OK.
If you add extra washers, more welding is required here.
Repeat the process until full and top with a large weld bead to indicate the positive side.
More or less welding can be added at this point to match exactly the correct length.
Your battery is finished now!
If everything you do is correct, you should be able to connect your multimeter (
Settings are the same as before)
And read around 1. 5 volts!
Compare it to a standard AA battery and see how you do it!
* Trouble shooting: your voltage is high at the beginning and then leveling is normal.
If your voltage is a little lower, try pulling the battery from both ends to stretch a little.
You may have a short circuit if your voltage is low (
Square dislocation of electrolyte)
Alternatively, you may stack components in the wrong order.
Your battery will fit into any standard AA slot and provide the voltage you need to power all your favorite gadgets!
This homemade battery can power a LED flashlight, a portable recording device, a computer mouse, or any other device that requires an AA battery.
Since you can make your own batteries at home, you won\'t have to buy expensive stores anymore --
I bought the battery again! ! !
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