One of the best player eats the battery

Select I have on the 4.3 "cell phone and on the 10" tablet, where they are equally practical. The stars I forgive for extensive functions such as playlists, Drag'n'drop, frequency display, progress bar as loudness graphics (similar to SoundCloud) lockscreen widget.
On the tablet, the playlist is displayed permanently on the right, on the phone, they appear over the selection.
Two stars I draw from for the high power consumption, although the app is not running in the foreground.

English version:
Title: One of the most beautiful player eats up battery
I have installed Select on a 4.3 "smart phone and on a 10.1" tablet computer. On Both devices They are handy. I award stars for Numerous functions.
I substract two stars Because of high battery consumption for background activity on the smart phone (38% of electric current, active 4h 17m 59s TimeTotal, CPU 7m 23s, CPU foreground 1m 3s, then I killed the app).