This is a simple and obvious tip, but easily overlooked:
If you want to make a battery-powered device from scratch that can easily be recharged, well, that's not the most beginner-friendly task...
Unless you use a USB power bank!
They are cheap and include both batteries and the charger circuit.
For many, the main challenge would then be soldering the tiny pins of a USB connector. But that can also be easily overcome by using a USB breakout board.
You can use the 5V and GND pins to power your project. The power bank would take care of delivering power and recharging the battery.
For example, to make a battery-powered flashlight, all you'd need is a resistor in series with a bunch of LEDs. Here's a prototype of where I've done just that:
I hope this will spark a few ideas among some of you!
Keep On Soldering!
Oyvind @ build-electronic-circuits.com
PS: Are you into electronics and need some guidance to get to the level you want to be - here are two ways I can help you get better at electronics:
- Join Ohmify: Ohmify is for people interested in electronics who want to learn skills like PCB design, soldering, and project-building - while also getting a proper understanding of the basics.
- Get the eBook Fun Circuit Experiments with Sound and Light where you'll learn basic electronics through experiments. If you're new to electronics, this is the perfect place to start. The book comes bundled with a component kit for an easy beginning of your journey.
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