Re: >10W idle power usage on framework laptop 12th gen 13inch

is it an genuine (really in strict sense of the term) brand battery or a 

compatible replacement (even if they call it "genuine", always puzzles me).

Since I keep alive a lot of vintage laptops and am the author of 

GNUstep's BatteryMonitor I share the experience that non-original 

battery can have their controllers do the wildest things. Usually 

sourced from China they have compatible controllers (well, I can imagine 

producing hundreds of different models, they must have compatible 

emulating chips).

It's the one that came with my Framework laptop new from factory. I don't know how cheap they are, I guess framework tries to include good components.

I have seen incorrect cycle count. Sometimes I think they just miss to 

calculate partial cycles... so if you never do full cycles, the battery 

appears new. Otherwise it is just buggy or explainable for me.

To be honest I never actually verified the cycle count before. I have just recently been letting it go to full exhaustion, I almost never let it "die" so that may have something to do with it. I'll keep an eye on it.

Some batteries skimp on the design vs. last capacity too. Most often I 

have seen them to be about the same value forever. Or a too high design 

value is tricked and if you open the cell it is not corresponding.

This one has degraded quite a bit so I'm thinking it's being honest with me. I've been through quite a few cycles with it because I assumed the system wasnt doing any DC pass through.

One interesting thing with this battery that I've just noticed is that the bios has an option to limit charge to a given percentage. If I limit the charge to something, say 60%, and monitor the current when it gets to 60%, it goes to perfect zero. The only way the current will go up is if I do a very heavy CPU load. For this reason, I'm not sure it's doing straight pass through — it must be some kind of hybrid design or something I don't understand.

If I leave it at the default 100% setting for a full charge, when I get to 100% it still runs about 2.2W idle in OpenBSD (1.6W in Linux), so the way the battery or system firmware works for 100% seems to be much different than for 60%. Maybe it's just because of the voltage difference between the two maxes. I haven't tested 99%, for example.