charge_now property missing from /sys/class/power_supply/cw2015_battery
This prevents certain user space battery monitors (eg polybar) from operating correctly.
I don't know if it's possible to get this value from the battery or not, but looking at the implementation for current_now reveals a way to approximate it, i.e. just multiply max charge by current capacity. I've implemented this in the attached patch and it seems to work as expected.