Startup problem with 18650 battery

[clackups]

I'm developing this firmware for the RLCD board:
https://github.com/clackups/draftling

it works fine when powered from USB.

If I insert the 18650 battery while USB is disconnected, the board does not react on any buttons and stays off. If I connect the USB, it starts working. After that, if I disconnect the USB cable, I can power it off and on with PWR button and it works as expected, shutting down and booting.

Something's odd with the initial state when I insert the battery in the unpowered device. No additional components are added, and the speaker is not connected.

[DrayxR3X]

Due to the 18650 battery protection circuit on our PCB, if the 18650 battery is installed first, the device may fail to power on. In this case, you need to connect the Type-C cable to activate it. Once activated, as long as the battery remains connected, subsequent power-ons will not require re-activation.

[DrayxR3X]

I will relay this to our hardware engineer for optimization in the next revision.

[clackups]

Please mention this in the waveshare wiki

[clackups]

Is there a way to change the behavior? Maybe by manually adding a resistor that sends the right signal from the battery?

[clackups]

Please also mention to the product developers that an enclosure with a protective glass is needed a lot. While testing and plugging and unplugging the cables and the battery I broke the display, which appears very fragile.

Also, if this enclosure throws light onto the screen, that would be even greater.