Where is this battery draining code from?

Over the course of about 7 hours the night to today the battery level dropped from ca 75% to ca 10%. During this time the app 'Podcast Addict Remote' was open.

• is there there something about Podcast Addict Remote that draws a lot of power when waiting for input? I'll see if I can find something.
  
• could the watch have reported the battery level wrong the last couple of days. I've had moderate/reasonable readings for a couple of days before it fell of a cliff this night.
  
• I'll run logging in 'Power Manager' one night with Podcast addict remote open and one night with the clock face active to compare.