Hi there!
I purchased a Battery Babysitter from a local distributor. I’m planning to use it to power a Raspberry pi based project. However I see from your hookup guide that the Battery Babysitter is best-suited to powering 3.3V-based devices. The output actually can be anywhere between 3.4-5V… Does this mean that I need to use some booster/regulator to get the rPi regularly running, or is it safe to connect it directly to the 5V line in GPIO?
Thank you and regards
Roberto Tomassetti
Hi Roberto, and thanks for posting!
The Battery Babysitter doesn’t do any boosting or regulation on it’s output so you’d need a buck/boost regulator between the output and your Pi to feed the Pi a steady 5 volts for power.
You do only have 1.5 amps maximum to work with though and that might not be enough current for more modern Pi’s so make sure you have enough current to work with.
Remember that if you need to boost the output voltage, you’re going to be drawing more current from the battery than the Pi is drawing from the 5 volt supply so you could easily demand more current than the Battery Babysitter is capable of delivering.
Something like the [PiJuice might be a better option for more modern Pi’s.](PiJuice HAT - Raspberry Pi Portable Power Platform - PRT-14803 - SparkFun Electronics)