With all the people focusing on battery drain, I also kept some logs of the power usage of my AirPods, bought at launch day in Belgium (roughly 2 weeks ago).
This is a literal log of use but it is representative:
100/100 @ 23:42 Day 1
100/100 @ 19:05 Day 2
085/096 @ 20:14 after 01:09 Play time so the pods lost 0.22 % per minute
100/090 @ 21:32 0.40 charge ratio (pct case for pct pods)
070/090 @ 23:14 after 01:45 Play time so the pods lost 0.28 % per minute
100/082 @ 09:10 Day 3 - 0.27 charge ratio
096/081 @ 10:24 !
A bit odd!
089/080 @ 10:51 after 00:25 Play time mixed with two 2 min calls (0.44% per minute)
100/069 @ 16:48 1.00 charge ratio
087/069 @ 17:37 after 00:49 Play time (0.27% per minute)
100/065 @ 18:30 0.30 charge ratio
071/063 @ 20:10 after 01:40 Play time (0.29% per minute)
100/055 @ 18:45 0.28 charge ratio
097/054 @ 18:56 after 00:11 Play time (0.28% per minute)
100/051 @ 20:46 1.00 charge ratio
036/050 @ 00:07 after 03:22 Play time (0.32% per minute)
100/034 @ 10:36 Day 4 - 0.25 charge ratio
090/034 @ 11:19 after 00:43 Play time (0.23% per minute)
100/029 @ 12:36 0.50 charge ratio
At this stage I plugged them in.
Total play time: 604 minutes or a little over 10 hours.
Extrapolating that would net me (10/70)*100 = 14 something hours of play time.
Some observations:
1) At the rate of say, 0.3% per minute, the pods would last 5.6 hrs which is pretty much as advertised.
2) Assuming a 'charge ratio' of 0.3 I'd get 333% of AirPods charge out of the case, at a discharge rate of 0.3% per minute for the pods that would be 1110 minutes or 18.5 hours.
That last number would come close to the rated 24 hours Apple seems to promise on their
product pages. Then again, they listened to the pods until drained and only then put them in the case each time...
"
Testing conducted by Apple in August 2016 using preproduction AirPods units and software paired with preproduction iPhone 7 units and software. The playlist consisted of 358 unique audio tracks purchased from the iTunes Store (256-Kbps AAC encoding). Volume was set to 50%. Testing consisted of full AirPods battery discharge while playing audio until the first AirPod stopped playback. The drained AirPods were charged for 30 minutes, then audio playback was continued until the first AirPod stopped playback. This cycle was repeated until both the AirPods and the Charging Case were fully discharged. Battery life depends on device settings, usage, and many other factors."
What I am interested in hearing: "How much play time do others get from their pair???"