#2 distinguish different batteries

[Anonymous]

it would be nice to make the tool distinguish different batteries, as it's typical on long days to use a replacement battery.
implementing this should be trivial, as you only need to save/read the data in an named directory, which can be made up from
manufacturer, model_name and serial_number in /sys/class/power_supply/BAT[0-9].

[Anonymous]

wonder if the tool could be readily extended to handle case of 2 batteries present (need for lenovo X301)