Introduction: 4A Portable Power Bank

Picture of 4A Portable Power Bank

Hi! I'm back with another project!

As the title suggested this is a handmade power bank which has a capacity of 4A. Why I built this will be reveal at the end.

Power Bank Description:

  • Can hold at least 4A
  • 3 USB Ports
  • Rechargeable
  • 2 LED in case of emergency. You can adjust their brightness with the potentiometer.
  • It's very light since the case is plastic.

Step 1: Set Up

Picture of Set Up

This is the layout for the inside of the power bank.

Obviously you need at least 4 18650 batteries.

I got mine from eBay.

I also bought the 5V converter.

Note that I had to solder off the two usb ports and relocate them to where I want. If possible get a heatsink. In my case I used cable ties to secure the converters on the heatsink.

Also you need 2 LEDs (optional)

I'll show you what they look like in the next page...

Step 2: Cover Up the Bottom

Picture of Cover Up the Bottom

I just used 4 screws to secure the base.

Step 3: LED

Picture of LED

LEDs demonstration...

Step 4:

Picture of

This power bank is perfect to bring with me on a camping trip to recharge my phone or this flashlight. If you're interested I would love to go over how I made this...


SoakedinVancouver (author)2016-08-08

Beefy! Is it recognized by an iPad?

gilbequick (author)2016-08-06

Can you post step by step instructions on how to make this?

gilbequick (author)2016-08-06

Nice! How do you recharge it?

Do you have an Instructable on the flashlight?

DIY Hacks and How Tos (author)2016-08-06

Nice DIY power bank. Perfect for power outages and emergencies.

About This Instructable




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