Just look up “battery discharge curve”. There is plenty of these done by labs from all over the world (some are included in certain battery specification page too) with different cells and sort. All typical Li-ion/LiPo will demonstrate this curve.
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11 posts were merged into an existing topic: Consistent Wake from Sleep Issues on Linux Edit:(5x Distros Tested)
Ye gods the thread discipline foo is weak in here… #IfIWereKing…
The discussion on the total chaos of sleep states can be found in other threads.
Yes. Can I volunteer to be moderator? There are way too many posts that are basically out of place.
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Bee has said you can still apply here. The team of community moderators are doing their best to keep the forum clean, but I also know they work on the principle of “try not to get involved if you don’t HAVE to”.
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My apologies taking time to split the topic, but it was not immediately obvious which of the many Linux sleep threads it should go into.
Also we try to do this sparingly. Some users may think we’re minimizing their issue or trying to hide it. So it’s best not to do it until it’s absolutely necessary.
If you see threads that should be merged, you can always bring them to our attention by flagging them and selecting “other”. We will take it into consideration, bearing in mind the above.
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I’m running a batch for i71165G7, 64GB RAM, Crucial P5 Plus 2TB SSD on Windows 11 Pro, with BIOS 3.07 and I am showing the following from the Windows battery report. I have limited the charge to 80% in the BIOS since that feature has become available it is plugged in most of the time. ~11% drop in battery capacity seems a bit excessive for a 1-year-old battery.
I’m in Canada, I only get a 1-year warranty.
Thanks, I will take a look at the links. It would be nice if they were able to get a battery with higher density, however on the upside it only takes 3 minutes to pop in a new battery. Sure beats my old Surface Pro 4 for repairability. LOL
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I miss 5 seconds for a battery swap.
This is one of the handful of Intel 11th gen laptops still with modular battery:
FZ-55 MK2
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I have a Framework AMD Ryzen 5. The laptop arrived on Dec 2023, which is less than 3 month old at this point, and the battery is already at 96.7%. Is this normal behavior? Because if the battery continues with this trajectory, it will be below 65% in 3 years.
I have tried my best to conserve the battery: the charge limit is set to 85%, and I typically stop charging when the charge reaches upper 70%. Is there anything more I can do?
I highly recommend you check this thread for more details. Not only do the batteries arrive with slightly less than 100% wear from the factory, but you also need to do a full discharge and recharge cycle to calibrate the battery before you can have an accurate read on your battery wear percentage.
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Coming from the RC Airplanes/Drones world, I had a participated in the effort to identify good batteries, and how to handle them.
Some of the results are kept here (for my own usage: RC Batteries: Status).
What we figured out can be resumed in the following points:
- The highest resistance of a cell in a battery pack will determine the overall battery yeld.
- The temperature at which a battery is charge and stored will determine if it will deteriorate fast or not.
To 1: The weakest cell will be detected by the charging electronics, and the charger will charge the pack according to the specs of that cell. Also, if the resistance is high, it will cause more heat depending on the moved current. Remember that we (RC World) use the batteries with 60C to 90C - means, if we pull 90Amps at 16V out of the battery. With these currents, it happens that a battery just starts to burn inside the plane/drone. In laptops however, I doubt this will happen as the involved currents are way lower, but it can and did actually happen. You get the point.
To 2: The storage charge and temperature has always been an issue. The battery cell depending on the internal resistance, that internal resistance depends largely on temperature. The higher the temp, the higher the internal resistance. On top of that, the electrolytes can only hold a specific charge at a specific temperature temperature (all linked to the internal resistance too). If you charge a pack at 20⁰C temperature, then go outside where there is 0⁰C temperature, you will destroy your battery very fast. Because at 0⁰C, the battery cannot hold the same charge as at 20⁰C. That is also the reason the battery packs starts to grow in volume and look deformed.
These elements may not be visible immediately on low power consumption devices (as laptops etc.), but with RC Airplanes and 6S 90C battery packs, the effects can be visible after the 3rd day flying at 0⁰C. But the chemistry that happens in the RC batteries happens also in the laptop batteries.
In the end, never fully charge a device’s battery when you intend to take it outside in very cold temperatures. Especially if you leave it in the care and leave for lunch.
Best is to really charge the battery to 85%, then go outside.
For storage, we tend to store all at 3.8V for LiPo batteries. At that temp, the battery is able to handle most temperatures.
You have to remember that even when sitting idle, lithium batteries do wear out. It’s not like “keeping a battery at 50% for ten years, (like for instance plugged to a maintenance circuit)”, will keep it anything but new.
The degradation is also non-linear. I have 33% wear on a 10-year pack from Thinkpad.
Wouldn’t hurt to know, although likely going to be a trade secret. However knowing where they sourced the cells could be helpful.
Do we know if there is a way to stop the battery from charging right away?
For example if I set threshold to 80% and run a cpu intensive task, even with the 65w power adapter installed I see the battery fluctuate between discharging and charging. i.e. 79% for a second, then 80% charged, then 79% a few seconds later for a second, etc.
Would this negatively affect battery over long term? (My 65 watt framework adapter is going through steamdeck dock. I will try direct connection to see if same behavior…)
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Turning down the short-term boost power should reduce that behavior by quite a bit, then again going tiny charge and discharge cycles around 80% should not put a lot of wear on the battery.
The more power it has available the less likely it’ll dip into the battery for short peaks. Not sure if the steamdeck dock reduces the power available or just darws a lot of it itself but it is possible.
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I have the same behavior, I’m using Ubuntu 22.04.3 with recommended settings, AMD 13 ryzen 5.
Are you using Linux too? I wonder if people using Windows have the same problem.
I have still to investigate if it is possible to set another threshold before start charging the battery, like 60%, maybe with powertools: I had the max 80% in the BIOS has you, I would like that when plugged doesn’t charge until it reach 60%, really hoping that the power is taken directly from the adapter without pass through the battery and I’m not sure about it with this laptop…
I think the problem is the trend of over-utilization of battery capacity on laptop computers, Framework is no exception.
My 7 y/o old laptop has a 10.8V 3834mAh 41.40 Wh battery with the charging limit voltage of 12.3V. The battery consists of 6 Samsung ICR18650-22F with a rated capacity of 2200mAh and a charging limit voltage of 4.2V. As you can see, 4.2VX3>12.3V and 2200mAhX2>3834mAh. It’s clear that the laptop manufacturers under-utilize their battery pack for a longer cycle life. My recent laptop has a 7.2V 43Wh 5900mAh battery pack the 4 battery cells are arranged in a 2S2P manner. The actual capacity of the cells are about 3150~3200 each(I can’t open the battery pack without breaking it so no exact make and model of the cells). The charging limit voltage is 4.2V/cell instead of the previous 4.1V/cell. As time goes on, manufactures are leaning towards longer single-charge usage time over longevity.
Where are we now? Battery packs with 3.87V/cell? 4.4V or even 4.5V charging limit voltage? This trend makes limiting charging percentage of 80%(or even lower) a must if you want the longevity to be as the same as the battery pack in a 7 y/o laptop.
Hey! sorry for late reply… Just saw this.
I am on Fedora 39 yes. I have not tried to set a second charge threshold, but yes, on a different Lenovo laptop in our house that’s how it’s done. It has 80% max charge, and 60% min battery before it charges back to 80%. So if I use a lower wattage power adapter and stress the Lenovo I can get the battery to slowly go down, but it doesn’t charge right away, which I like.
I fired up windows just to confirm the same weirdness is going on and it looks like it does.
- hwinfo graphs
- cinebench r23 load
- Framework charger plugged directly into laptop
- Framework 13 AMD 7840u
- Bios 3.05 (happened same with 3.03)
Look at the red box in charge rate graph. As soon as it’s 35w power package, it starts charging/discharging. And this I can see on my Fedora install as my battery icon switches from charging to discharging constantly under full system load.
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