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Portable charger from cigarette lighter adapter



Portable chargers have been very popular lately. This is due to the increase in the number of wearable devices, as well as their need for everyday life. Everyone knows that any wearable gadget has the ability to discharge at the most inconvenient moment and in the most inconvenient place. The solution to the problem with the charge may be a portable charger or Power bank, the manufacture of which this review is devoted to.

Let's start by watching the author’s video



To make a Power bank, we need:
- 3 batteries from an old mobile phone;
- wires;
- adapter for cigarette lighter car;
- switch;
- glue gun;
- electrical tape;
- housing;
- plugs from the computer power supply.

According to the author of the idea, most methods for manufacturing portable chargers use Kron type rechargeable batteries, which is inefficient because such batteries have a very small capacity. The author uses two batteries of 2100 mAh and one of 1200 mAh. All of them are 3.7 volts. We also note that the author uses an ordinary box as a case, which can be replaced with any other convenient material.

Of the three batteries you need to make one powerful, connecting them in the following way, as shown in the drawing below. The result is a single battery with a capacity of 5400 mAh. Such a battery will also produce 11.1 volts, which is enough to create a portable charge for the phone.

Most mobile phone batteries have 3-4 pins. These are not the contacts of the battery itself, but the contacts of the board located on the battery itself. To facilitate the work, you need to remove the board. After that, two contacts will remain on the battery - positive and negative. It is these contacts that need to be connected in turn.

After carefully soldering all the contacts with a soldering iron, you can glue everything with hot glue. Thanks to this, the wires will hold more securely, and you can refuse to use electrical tape.

After connecting all the contacts, the batteries must be connected by wrapping them with several layers of electrical tape. It is also necessary to check everything with a tester to protect yourself from possible errors.

The adapter that will be used in the design works from the cigarette lighter of the car, which in turn issues 12 volts. The adapter itself works from 9 to 12 volts. We disassemble the adapter.


The resulting components must be placed in the housing. First, glue the battery.


Then you need to cut a hole for the USB connector of the adapter.


We attach one contact from the battery to the adapter and glue the adapter itself.

We make a hole for the switch, insert it and fix it with hot glue.

Using wires, we connect the switch to the adapter and battery.

We check the design for operability.

It remains to attach connectors for charging the charger itself. You can charge it from a regular phone charger. We attach two contacts from the plug to the contacts from the charger. We fix everything additionally with hot glue and wrap it with electrical tape.

We connect the plug directly to the battery, insert it into the hole and fix it with a glue gun.
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12 comments
Quote: admin
I even put a plus, but you minus me ...

smiles I was offended. yes
Are you all fine, keep it up! good
For more, leave such useful and informative miracle comments. I even put a plus, but you minus me ... cray
Quote: admin
Oh, another "miracle comment" from "miracle critic" derisive

smiles Chef, what's wrong? Did I add some sort of "gag"?
And, most likely, it won’t even reach the charge, because the batteries will be killed when the discharge is below about 9.5 V: there are no protection boards, first the weakest will die, and then how lucky. ((
Sorry for the time, but have to. ((
The solution to the problem with the charge could be a portable charger ...
... the author uses a regular box as a case
The design of the product does not correspond to its purpose.
Let's start by watching the author’s video ...
According to the author of the idea ...
Where is the author? Link - to the studio. ;)
The result is a single battery with a capacity of 5400 mAh.
Not at all. Capacity will be equal to 1200 mAh.
Such a battery will also produce 11.1 volts.
Not at all. Actually (9 ... 12.6) V.
To facilitate the work, you need to remove the board.
To quickly ditch the batteries?
It is these contacts that need to be connected in turn.
The author connected not one at a time, but sequentially.
You can charge it from a regular phone charger ...
We attach two contacts from the plug to the contacts from the charger ...
We connect the plug directly to the battery
And here is the sad ending: the batteries will most likely not be charged, since there is not enough voltage. And in the worst case, when trying to apply a source of a higher voltage, if the charging voltage and current allow, then the batteries will be "killed".
Oh, another "miracle comment" from "miracle critic" derisive
Quote: Ivan_Pokhmelev
I agree with you. Such wrecking descriptions of delusional devices, of course, must be removed from the site. One hope that intelligent people will not be this "miracle" to repeat.

yes Another "miracle" ?!
But ....
" for each homemade product there is a specific author (or source site) and the reader’s choice for which author to repeat, ...".
I agree with you. Such wrecking descriptions of delusional devices, of course, must be removed from the site. One hope that intelligent people will not repeat this “miracle”.
I would not recommend using this scheme. Firstly, 3 acb are needed so that it is about 12 volts. Otherwise, the converter will not work and the phone will not charge. Secondly, charging these 3 batteries in a box with a power supply is suicide. There must be a power controller. That would, when fully charged, the power supply is turned off. Otherwise, they will simply explode from overcharging.
Porter
Mixail the problem in the genes of the author of the idea ... He walked a physics course in the eighth grade, so he sculpts without understanding his mistakes :(
2
charge with 12 volt charge
I did everything right, but this device does not charge me, what could be the problem?

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