I ran the same test: two cycles of 20 minutes each. I get slightly higher readings.
🔋 Battery BAT1 lost 37000 µAh (0.64%) [Average rate: 0.01A]
🔋 Battery BAT1 lost 30000 µAh (0.52%) [Average rate: 0.01A]
The nominal voltage of the framework 16 battery is 15.48 V, according to:
If we assume that the laptop was operating at approximately nominal voltage, we should be able to calculate watts:
Using the second reading as an example:
30000 µA * hr / 20 minutes * 60 minutes/hr == 90000 µA
90000 µA / 1000000 µA/A = 0.09 A
0.09 A * 15.48V == 1.3932 W
…but the reading from the script seems to have two significant digits, so it’s best to round that off to 1.4 W.
The first reading calculates to 1.7 W.
This is pretty consistent with the AC power draw I read at the wall while the laptop is suspended and the battery is fully charged. I read 1.3 +/- 0.3 W at the wall (the reading fluctuates).
Some variance of power draw could be due to the type and amount of RAM present. While the laptop is suspended, the RAM must stay active in order to not lose data.
Searches tend to bring up this thread:
I really don’t know what is typical for a laptop; this doesn’t seem to be widely published. Values I found are:
1 to 3 W: Deciding Between Idle State, Sleep Mode, and Shutdown: What's Best for Your PC? - MajorGeeks
1 to 2 W: 3 Myths About Computers and Electricity | IGS
So maybe what you’re seeing is just normal.
More data from other laptops would be interesting.
My old Dell Latitude E5520 with 8 GB of RAM uses 1.2 to 1.3 W at the wall for suspend-to-ram, and 6.7-6.8 W for suspend-to-idle.
-Corey