Battery stops charging and NVMe and other media disconnect randomly

[Eey0zu6O]

TL;DR version - there are several problems with PBP's power system:

• the controller is prone to overheating. When it does, it stops charging the a battery.
  
• the way power is designed in PBP it is always powered from the battery, even when PSU is connected. If battery is drained and not charging - PBP will not even turn on. This means that to avoid discharging battery power consumption cannot exceed battery charge power.
  
• the power PBP can take from PSU for battery charging is limited to ~15W, yet it seems under full load (especially with NVMe and/or external USB devices) PBP might be capable of consuming more power than that.
  

In other words, while PBP is a great little machine and a massive improvement over the original PB, it really doesn't like certain heavy-load applications. Keep the heavier tasks for some other machine (e.g. a ROCKPro64 based on the same SoC) and ye shall find happiness like I did. Oh, and I decided after all that due to the power constraints, its really not worth it using PBP with NVMe drive, so I only have 128GB eMMC now in it.

Thanks for your response! It's very informative. I guess I'll just remove the NVMe and use an eMMC like you did.