Does these updated images of android and ubuntu support and show the current percentage of battery if i pluged one like 6600Mah Lipo or i need to configure something in the system files ??
yes, we have test , can show it. note , must use 3.7V battery.
please see this link:
These values are absolutely unrealiable unless you calibrate them using table entries for the battery in question.
@soufyen better read from here on and check the referenced thread also. And in case you want informations better join the Armbian community.