mobile power bank

POWER BANK


Make a Mobile Power Bank at Home
Power bank || circuit || mobile charger
how to make simple power bank

electronic kit ; here

Things required

1. breadboard
2. 100uF capacitor
3. 470uF capacitor
4. 7805 IC
5. 150/220 ohm resistor
6. LED
7. 9v battery
8.  connectors
9. USB mobile cable

Portable Power Banks are comprised of a special battery in a special case with a special circuit to control power flow. They allow you to store electrical energy (deposit it in the bank) and then later use it to charge up a mobile device (withdraw it from the bank). Power Banks have become increasingly popular as the battery life of our beloved phones, tablets and portable media players is outstripped by the amount of time we spend using them each day. By keeping a battery backup close by, you can top-up your device(s) while far from a wall outlet.