Build Your Own Portable USB Charger

Build your own USB charger that works like a 500 mA iPhone charger and will work with most modern phones.

Have you ever experienced that your phone’s battery dies when you need it the most? Maybe on a hiking trip when you want to take a beautiful photo. Maybe when you’re trying to find your friends in a festival full of people. It’s usually at the worst possible moment.

With this portable USB charger, you can recharge your phone on-the-go. It uses standard AA batteries that you can buy in any supermarket, or you can modify it to use other battery types, solar power or even power adapters not really meant for your phone.

The charger works like a 500 mA iPhone charger and will work with most modern phones.

Your Instructor

Øyvind Nydal Dahl
Øyvind Nydal Dahl

I love electronics, and I've been building things with electronics since I was a kid. It such a great feeling when you build something and it works! And I want more people to have that.

Since I was a kid trying to learn electronics, I always felt that electronics was taught in a very complicated way. So since 2012 I've been working on new ways to teach electronics so that beginners can quickly get up to speed and start building cool things.

M. Sc. in microelectronics. Author of Electronics For Kids ++.

Frequently Asked Questions

When does the course start and finish?
The course starts now and never ends! It is a completely self-paced online course - you decide when you start and when you finish.
How long do I have access to the course?
How does lifetime access sound? After enrolling, you have unlimited access to this course for as long as you like - across any and all devices you own.
What if I am unhappy with the course?
We would never want you to be unhappy! If you are unsatisfied with your purchase, contact us in the first 30 days and we will give you a full refund.

Get started now!