HI everyone. Firstly, apologies. I am sure this has been asked a million times before and I have done a few searches and learned from them, i do however have my own problem I am hoping someone can guide me on.
Brief description of project. I am building a portable Pi to run Retropi on. I have designed and made a 3D printed case, I have a Pi 3B+, a 7" HDMI screen from Amazon, a powerboost 1000c, an onoffshim, a 6600mAh battery and various other bits to piece it all together.
Now, the problem I have is simply that upon piecing everything together, I am getting under voltage. I briefly read somewhere on the webs that the Pi3B+ might NOT work in this configuration. My electronics knowledge is limited, so I havent measured the various outputs/inputs of power, but i had figured (probably wrongly) that the 6600 mAh 3.7V battery plus the Powerboost 1000c would have been enough to power the Pi and the 7" screen plus bluetooth etc…
When I mocked up a design but used a standard powerbank it was all ok (using both USB outputs) but the total output from that power bank wasnt anything over 4amp i dont think, so I am a little confused and i feel ive done something wrong!
Am I right in thinking that the B+ wont work in this configuration? My portable handheld Pi is limited space wise, so I was trying to keep the battery as small as possible hence purchasing the powerboost/battery/onoffshim which all fit lovely…
hope you guys can help!