I charging my uconsole and use watch cat /sys/class/power_supply/axp20x-battery/uevent to check battery voltage. It’s 4.26v, but cut-off voltage for li-ion battery is 4.20v. It’s can be dangerous.
it’s not. 4.25-4.26v is totally fine and safe for li-ion. This is just normal constant voltage stage voltage.
Since you exposed all parameters for the axp, what’s the target voltage?
by default it should be 4.26, which is fine because of voltage drops
By default it’s 4.2. I checked this in i2c register. My battery voltage drop is near to zero due to xt30 connector