A Raspberry Pi battery pack or a mobile power supply is beneficial in many cases. In this tutorial, I want to show one way to operate the Pi using normal AA batteries or rechargeable batteries. Of course, there is the option to buy a USB Powerbank, but this has to be fully charged every time.
PowerBoost 500C is the perfect power supply for your portable project! With a built-in battery charger circuit, you'll be able to keep your project running even while recharging the battery!
For many people, the PowerBoost 500C can be used with just the microUSB charge input, battery plug and power outputs. However, we have a couple handy breakouts so lets get started! USB - this is the micro USB 5V power pin. It's the pin that is used to charge the battery, NOT the output power!
This build is made up of four subsystems. The first is the DC power supply from the battery pack, with the first filtering capacitor (leftmost C1 in the basic circuit) and a power switch (power subsystem diagram). The filtering capacitor does the job for all the regulator subsystems, so we only need it once.
Yes! The solution is very simple, but you need to take care to not doing anything wrong. So, our solution is using Batteries as external power supply! Some external power supply examples images:
A 9V, 5V and 3.3V stable supply that you can take anywhere with no country adapters or spare cables. If you're flying and weight is an issue, you can always pop the batteries out making it super light. Acknowledgements