In the past hour or so, off the charger at 93%, now 82%. More in line with the 10% per hour I guess.
I did another battery test today. Draining from 95% charge to 18% charge took 7 hours 45 minutes, so realistically about 8+ hours of “on” time.
This was with mobile disabled in the settings, wifi on, and the phone dormant on the table, with just an occasional peek at the battery level.
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With SD card inside?
µSD card, yes.
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… and smartcard? 
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No. I don’t have one of those.
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If your Wireless Access Point gives you the choice of the 2.4 GHz band and the 5 GHz band and if the 2.4 GHz band is viable for you then you should be able to make a minor improvement in time between charges by selecting the 2.4 GHz band.
However realistically, until Purism implements some kind of sleep mode on the SoC, 10% per hour is about what you are going to get.
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Purism recently added power manager to SD card slot, so if you do not have a SD card inside the SD card controller it power off so save battery. Linux 5.15 it close to Librem 5 it come with more power save.
Very nice work of Purism.
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Actually, I was on 2.4GHz. (Although I realize you were responding to someone else. Or perhaps to both of us.)
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Today I did a similar test, this time on the mobile network, with wifi off. Over 7 hours, the battery drained from 93% to 20%, so again, about 10% per hour (10.4% in this case).
The phone was sitting in two different places indoors throughout the day, with a strong signal in one room, and a weaker signal in the other. I was checking the battery level about once per hour, slightly more frequently than during my wifi test, and also opening the settings screen and browser a couple of times to confirm the data connection. I typically keep the brightness level at about 75% to save power when the screen is on.
Network: A T-mobile MVNO set to 4G; unknown distance from towers, unknown strength/quality of network connection.
µSD inserted, no smart card.
Bluetooth off, as in yesterday’s test.
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