How to make a power bank by using old laptop battery

In this video, we are going to make a 13000 mah power bank by using an old laptop battery.
Firstly talk about requirement: An old laptop battery, XL6009 Boost Converter, A TP4056 charging module, a Toggle switch, wire for connection, some leds and 2.2k resistor. Firstly open the battery, After applying some muscular force we have successfully opened the battery. Now we have six lithium ion cell. then remove all of the stuff from it. So now we have six individual lithium ion cells. Now measure the voltage across each cell if it nearly lies between 3.5v to 3.9v then your cell is pretty good to be a part of your power bank. My all the cells are providing the good source of voltage so I'm gonna use all of them. Before going to the connection you must go for data sheet of the cell there you find out the current providing capacity of the cell which is given in milliampere. I find out 2200mah for this cell that means it provides 2200 milliampere current in one hour So if we want to make a good capacity power bank then we must connect the all six of them in parallel. So here we go for cell connection.
Now move on to the circuit diagram, firstly connect the output of battery to the input of charging module. Then the +ve terminal connects to the 1st pin of the toggle switch and 2nd pin of toggle switch connects to the +ve input of Boost converter then -ve terminal connects to -ve input of boost converter then connects the output of boost converter to the female USB port. You see pin configuration of USB port on screen. Then connect the output to the 1st and 4th pin of the USB port. Now set the output of boost converter at 5v. Please like, comment, share and don't forget to subscribe. This helps me a lot.

Видео How to make a power bank by using old laptop battery канала Electronics Engineering