Skip to main content

Power bank under 4 dollars/ 300 rs.

                                                     
Let's build a power bank today in just 300bux or just 4 dollars. yes, you can build it by yourself.

If you are a techie like me, it is better to build your own power bank instead of buying it. It will make you feel happy and you'll end up saving some money.
                                                                       - Apurv Patil.

Caution:

If your not good at soldering it is better if you do it under someone's guidance. All the best do it safely,


Apparatus: 



(I have mentioned best buyer's links as well.)

1. Old laptop battery.

2. Soldering iron and wire.

3. DIY charging board.

4. Double sided tape.


The making:


 Step 1:  Get an old laptop battery. Pop open it and remove the cells in it.
             Separate them and check the voltage rating of each and every cell, if the voltage is approx 4v then it is of use or else it's useless.


Step 2: Now take all the healthy batteries and solder them paralleled.


Step 3: Now that you have the soldering part its time to connect the circuit. Connect the +ve terminal of the batteries to the B+ pin and the -ve terminal to the B- pin on the circuit of the charging board.

Don't do this.

1. Don't do lose connections. Use soldering iron for connection only. Loose connection will make your power useless.

2.  Don't go for unhealthy batteries. 

3. Don't make it dirty and complicated. 



Take all the safety measures, have fun and be safe. Know the science behind it, if you know the science it's not dangerous!

Follow me on Instagram  [If you want an update of projects like this one.]
Subscribe to my Youtube Channel.  





Comments

Post a Comment

Popular posts from this blog

THE FIRE ARM

                                 Let's build a firearm today, A machine/ weapon which fires fire out of it. Yes, you can build it yourself at home, at the office or anywhere you want, I'm kidding it's easy to make but risky as well. I build this thing for fun and well that was the only purpose behind it.   - Apurv Patil Caution: Don't try this at home find a person to keep an eye on you.  Take all the safety measures written below and read the problems we faced so that you don't face them and put your self in danger. All the best!  Apparatus: 1. A hard iron plate.  2. Propane Cylinder.  3. Cable toys, Zip Ties.  4. Clipper.  5. A nozzle which fits your Cylinder. Process:    Step 1: Get a hard iron plate and mold it with a hammer or anything in such a way that it fits a perfectly and protects you from fire if it tends to comes back.  Make it look sexy, try to paint it.  step 2:   Design a nozzle if you don't find
1 comment
Read more