The ‘algorithm’ for calculating begs some questions.
Up until Dec 2023 the wear was averaging 4%after some 87 cycles, and some 6 hours use per day, plugged in and charged to 78%
Since Jan 2nd, given my lack of taking daily records and not using plugged in quite so consistently, the wear has dramatically increased.
The cycles are at 91 and the wear at 8.9% as of 10am today. EDIT:
And 20 min later wear shows as 11.7%, with no other changes ??
I will update with a graph soon. UPDATE:
OK Here is an updated graph. The graph logs the lowest value for any day, which since Dec 2023 is sporadic.
For more detail see: http://217.155.51.23/newdevices/framework/battery/jan24.php
That is interesting. I’ve always wondered exactly how sophisticated the indicators and models are between battery circuitry and the capacity number. You could imagine all kinds of hardware or software flukes or a value passing some threshold in some stairsteppy representation of a curve.
I have thought of contacting support to say ’ What is going on? ’
How is the low charge assessed when the computer shuts down is it due to the percentage shown or the actual voltage.
If the voltage then I can understand it’s a safety measure to ensure the battery doesn’t ‘die’ but
if the charge level then this has to be calculated. A poor calculation, as with the wear, could mean the battery charge level is actually higher leading to an apparent wear etc.
Thanks James, for the input.
The level of charge is related closely to the voltage and once self powered off due to low charge, the computer can be powered on again after some time for the battery to recover.
But the level of charge is more than just the voltage, so wear ??
There is a thing called coulomb counting which in theory measures the current flow over time and accumulates the ‘coulombs’
That ‘should’ give an indication of wear if the battery algorithm knows the top and bottom end of voltages and then how much power is used to go from 0 to 100. Zero being either a charge level of maybe 5v or a battery voltage of maybe 14V
For fear of going off-topic, I’d like to provide a point of reference.
I’ve been using AccuBattery on my current phone since I got it (late June 2022 I think) and I’ve been watching the battery health estimates and how much they can swing; my experience with the Framework battery isn’t excessively different.
AccuBattery disregards severe outlying values, which our approaches to getting the wear values doesn’t particularly seem to.
For your battery suddenly wearing more, Amoun, it’s possible that you’re experiencing something like an S-curve, which I remember seeing materials implying happens in wear for certain types of Lithium-Ion batteries – suddenly fall off a cliff and it near-plateaus for a while, then to become much worse quickly further down the line, but probably when the battery’s capacity is already greatly diminished.
Was that our, your, meaning me I don’t think you are topic at all. Understanding battery ‘wear’ is, as you point out, more than just reading data and perspective is hugely important.
Though I have not heard of the term S-curve I am aware of sudden changes and plateau’s.
You may not have seen my graphs clearly, which has a link and a few examples. The data I provided wasn’t mean to state what the battery wear was/is but how it appears.
Note that the graphs only show the lowest of any day so do not show the 11.7% I had four days ago as it dropped to 7.5 at one point.
Here’s a graph of all the low points from the start of me keeping records, and as you say, peaks and troughs and plateaus are evident.
If you will, at a link to where that S-curve is discussed. Thank you for your time.
My concern is how the ‘average’ compares to that expected defined by specs.
The point of interest/concern is that the average lately is well over 6% which equates to more like 300 cycles not 90 but only another year or two will give me more indications of what is more likely.
I have cycled it approximately 100 times too overall. But according to the posts I have read, the 11 is battery hungry. Also I only get around 4 hours on average of use on it. I got far better on my old Dell Latitude. I carry this laptop around to various nonprofits in South Brooklyn, but only a couple of times a week as I do not enjoy the subways. The commute from home takes over 2 hours a day.
I think I shall get a power bank to cover the extra hours when I may be away from a power plug.
i’ve had my framework 13 for two weeks now and it already shows a wear level of 8,7%. I may have charged it about 7 times and keep the battery at a maximun of 75%. Is battery faulty?
No and I can’t imagine it is, but I do image a) it’s fairly linear after a few dozens cycles and b) as the capacity drops a cycle will get shorter. again - fairly linearly. No doubt some exponentially tweaked one.
From my experience with lithium batteries it’s more like a lot initially and then tapers off and then a lot later a lot again, kinda s-curve ish. But anyway I’d be very careful extrapolating.
I’m sitting at just over 200 cycles and a wear level of 6%. Battery is about 2.5 years old (Batch 4 11th gen Intel). I mostly use it as a mobile workstation when I’m away from the office, maybe a couple hours a day 2-4 times a week, otherwise it’s plugged in intermittently set to 80% battery charge threshold, with the charge threshold disabled when I’m traveling. Can’t really complain with how it’s held up in my use case.
Just handed my 2021 batch 5 i5 off to a friend. Did a full battery cycle just to check everything out before it went to it’s new owner.
charge_full was 3042 , or ~47Wh / 55Wh available, ~85% of original capacity
After ~27 months in service, many partial but very few full cycles, 100 percent charge limit at first until BIOS allowed lower, 60 percent most of the time at that.
I don’t think you are topic at all. Understanding battery ‘wear’ is, as you point out, more than just reading data and perspective is hugely important.
