Right Half Battery Percentage Drops from 100% to 85% Immediately After Unplugging
I'm experiencing an issue with my Corne (split) keyboard where the right half reports 100% battery while plugged in, but as soon as I unplug it, the battery percentage immediately drops to 85% within about a minute.
Details:
Right half behaviour:
Shows 100% while charging
Drops to 85% within a minute after being unplugged
After this drop, the percentage seems stable
Left vs right battery life:
Right half appears to last longer than the left
I haven't done full drain cycle tests yet, but the right half easily lasts a full day without needing to recharge
Firmware / config changes:
I edited my ZMK config to increase Bluetooth transmit power because I had connectivity issues on my home PC
No connection issues with work laptops
Not sure if this affects the battery
My question:
Is this behaviour normal for the battery gauge on the right half?
Is there a way to reset or recalibrate the value so the right side correctly reports 100% when fully charged?
Or is 85% a fixed upper value for battery reporting depending on the specific board, regulator, or battery used?
Confirming I'm using the battery provided on the typeractive website.
Thanks in advance.
Details:
Right half behaviour:
Shows 100% while charging
Drops to 85% within a minute after being unplugged
After this drop, the percentage seems stable
Left vs right battery life:
Right half appears to last longer than the left
I haven't done full drain cycle tests yet, but the right half easily lasts a full day without needing to recharge
Firmware / config changes:
I edited my ZMK config to increase Bluetooth transmit power because I had connectivity issues on my home PC
No connection issues with work laptops
Not sure if this affects the battery
My question:
Is this behaviour normal for the battery gauge on the right half?
Is there a way to reset or recalibrate the value so the right side correctly reports 100% when fully charged?
Or is 85% a fixed upper value for battery reporting depending on the specific board, regulator, or battery used?
Confirming I'm using the battery provided on the typeractive website.
Thanks in advance.
