Hi, recently finished a first build. Both sides were able to be flashed with firmware, but only the right half turns on with battery power when the switch is on (up). The left half works while plugged in to USB. I used no-solder headers and all pins look to be making contact.
One thing I noticed is perhaps the battery plug is incorrect? See the picture where the red is not aligned to the positive (+) insert for the left side. On the right board the red goes to positive. The jack seems like it can only go in one way, so it's not as if I can flip it. Is this the issue or is there something else?
Thanks!
Edit: Regarding the bot's guess: these are the batteries which were shipped with the kit.