Introduction: HOW TO MAKE SIMPLE POWER BANK

A SIMPLE PORTABLE POWER BANK WITHIN THREE STEPS.

Step 1: THINGS YOU NEED

7805 IC

1K resistor

LED

USB Port

Battery

battery adaptor

Step 2: CIRCUIT

Make sure that the circuit is connected exactly resembling the diagram.

Step 3: FINALLY

Connect the phone to the USB port with a USB cable.

THANK YOU

Comments

author
olvegrn (author)2016-08-14

is it possible to connect a solar cell to it? as long as it is under 5 volts? that way you can just charge straight from the cell without using any batteries?

author
Sy333 (author)2016-03-16

Is the 7805 ic just a regulator

author
DhanicoG (author)2016-03-09

how can you recharge the battery source???

author
gormly (author)2016-03-07

You might want to explain to readers what the 7805 IC and 1K resistors are for.

author
Sreerag Nair (author)gormly2016-03-08

Ok. Thank you

author
DIY Hacks and How Tos (author)2016-03-06

Nice power bank. You could also use an LM317 chip to make the output adjustable.

author

But you wouldn't want an usb port with adjustable voltage ;-)

author
cjdlr (author)2016-03-07

is it possible for 12v. like connecting the circuit to your car battery?

author
Sreerag Nair (author)cjdlr2016-03-08

Yes,you can use it.

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