Is this something that would work on the FW12 with Fedora?
The button for one time 100% charging I mean?
If there is, I haven’t been able to find it. I haven’t be able to find the manual setting at all in Fedora 42 KDE Plasma on my FW12. Though I’m new to Linux and the machine so I could be missing it, this seems consistent with the discussions I see about this issue sprinkled throughout both Reddit and the community here.
It also seems like even manually changing it in the BIOS doesn’t necessarily stick? I’m not sure I’ve seen that exact problem described yet in FW12s.
I’m still looking for a solution….
Welcome to the community!
There was a BIOS bug after the introduction of the battery life extender mode in the BIOS that would cause the charging limit to be ignored. Many people experienced it on the FW 16 and 13, though I never did. I believe the issue has since been fixed. For what it’s worth, I’ve never had the charging limit fail to work properly on my FW 13, 16, or 12.
Keep in mind, all my experience is with simply setting a charge limit in the BIOS. I’ve never tried to change it with software in Linux or setup a one-time 100% charge option or anything like that.
Thanks! I’m excited to be here.
Glad to hear the bios issue seems to be resolved! I couldn’t figure out the status from the posts I saw and they were mostly pretty old so I greatly appreciate the clarity.
I’d still like to find a more comprehensive solution ideally (it sounds like the bios just provides a max charge threshold but no discharge point to restart charging?) I’m apprehensive about the software solutions I’ve seen thus far as they appear designed for other hardware systems. I’ll keep my eyes pealed and maybe do some more digging.
Thanks again!
The latest BIOS versions provide a 5% “float” range. So if I set the charge threshold at 80%, it will charge to 80% and stop charging, but continue to power the laptop from the charger. The system will let the battery drift down as much as 5% before it starts charging again. I currently have my FW 13 connected to an external display that also provides power. I have the charge limit set at 70%. After a couple weeks I noticed that the battery had dropped to something like 67%. Another week or two later I saw that it was back at 70%, so at some point in there it had dropped enough to trigger and charge back ot 70%.
If heavy load makes the system momentarily draw from the battery occasionally (especially if you are using a low wattage charger), then this may happen more quickly.
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