Thank you, Derek. According to the last screenshot Parallels Desktop causes a usual energy impact, and to our calculations your MacBook should last around 7 hours on battery. Let's get more power metrics to investigate deeper.
1. Enable test statistics for your virtual machine. Open Terminal and execute:
prlctl internal <vmid> teststat start (where <vmid> can be found by using prlctl list -a command, e.g. {494b003e-6a5e-4882-bd34-1337e759341e}, use the ID of your running VM)
2. Now please collect battery utilization statistics (which would be split into 1 minute intervals) to a file on Desktop:
sudo powermetrics --show-all -i 60000 -u ~/Desktop/battery.log
3. After executing both steps please work on your Mac for about an hour as usual. The battery utilization stats will keep collecting.
4. Then please stop collecting battery stats by pressing Ctrl+C in Terminal, and upload the file battery.log from your Desktop to any convenient file share, post a link to the file here.
5. Send a technical report via Help menu > Send Technical Data... > post the report ID here.
This data will help us to investigate Mac battery usage and reveal the reason for battery drain.
Thanks in advance!
Last edited: Jul 12, 2018