how to make simple battery charger at home

Hello friends,
 In this post we will make a simple battery charger at home that cost maximum Rs. 10 and just 1 hour time
So let's get started

Things we need:

3v led × 1
220 ohm resistor ×1
4007 diode ×1

And a soldering iron with solder to sold components

Circuit diagram :

 

After arranging the things just check the video below :