I've disassembled my Kite AIO, desoldered all the GPIO pins and USB pads. What an absolute nightmare. And not without casualties. I accidentally overheated the AIO board near the card reader and delaminated 2 data lead traces. They're still present, so I attached them to some homemade replacement PC...

That is excellent information. I was wondering about those numbers on the newer batteries. Thanks!

Oh man, that setup with the pogo pins was exactly what I was considering. Glad to know this is an option!

Also, your LCD bracket is awesome! Thanks for putting that out there!

I'm working on my first GBZ build, and I'm trying to plan for power. I see plenty of suggestions for stand alone battery options, like those from Adafruit, but never for cell phone batteries.
Is there an issue with charging? Size? Wouldn't the built in circuitry be a useful addition?