It's not the AP (in fact APM) bug. It's the difference in Nokia's BME and bq27x00 module. To make APM support power-kernel's battery module new wrapper should be written. It's quite easy
Well, I can develop a bit ) Just because a lot of things are already made, implementing new features is not that hard. But no opportunity to test (
In fact, it's quite easy, 'cause all the stuff is Python. Feel free to ask I still can develop a bit and help to improve