Hi @5uie1
Thanks for the detail but how long have you had the battery
That 3.4% ‘wear’ is relative to the ‘design’ which could have been greater or less than 55Wh
Do you have info on what it was like when you first received it, as I note, records show mine was 3.6% wear on receipt, which could just mean the battery was more like 52Wh to begin with
Hi @amoun, I unfortunately did not check the wear when I received it. I would say I have been using it for about 40 odd days, but mostly on a charger (only on a batter when I have travelled on work).
I’m using Win 11 updated from Win10 and someone directed to a CLI command which produced a history from Day1
It was in the record that I noticed it over 3% of day one and by time I got aroud to checking, due to reading this topic I noticed the wear was recorded as less i.e the capacity had increased by 251mWh after a week some 0.5%
and consequenlty the wear was ‘reduced’ from 3.4% to 2.9%
Here’s mine from HWInfo, seems to be accurate as I haven’t noticed any degradation on battery. I don’t have any battery limits set in the bios, I do keep it plugged in frequently. So it’s not “charging” but using wall power a lot. That may have something to do with it.
Hi @Matt_Upwood
A couple of queries
a) How long have you had the battery/laptop and
b) what version of HWInfo are you using as I don’t have the last row [Estimated . . . ]
My version is HWINFO64 v7.26 4800
I’ve had the laptop since mid-late September 2021. 11th Gen i5. Same Battery. My version is the same version as well, its odd you don’t have that last row. I think it just mimics what Windows is reporting though. I am on Windows 11.
Not really related but I was using my laptop with a little constant power usage (say 15% CPU and 40% GPU) and battery drop was 1% a minute (at 80% charge limit). First time I’d really done a little heavier lifting with it.
Quite surprised how fast it dropped. Especially as I have switched off the turbo boost so the highest it goes is 2.8GHz.
Full charge capacity at the moment (after a full discharge / recharge cycle): 52,853 mWh
So that’s at 3.9% wear.
Cycle count: 38
(First powered on: 10 months ago)
@Kieran_Levin, I noticed the following behaviour, not sure if it’s expected by design:
Laptop battery was intentionally discharged, fully, by letting the laptop stay on…till it ungracefully powered down. All good so far. Then, upon pressing the power button, the power button was flashing red, and the laptop didn’t come on. Still good, as expected so far. Plugged in USB-PD expecting it to charge. Came back an hour later. Powered on the laptop. But it’s only at 2% charge. It’s as if the laptop didn’t start charging until it was power on. This was unexpected. (On BIOS 3.09)
Expected behaviour: When the laptop’s main battery is fully depleted, and the laptop can’t even complete a POST, the laptop should be able to start charging the battery when USB-PD is plugged in, with or without the laptop being powered up.
Unless the amount of hours used is also stated it is not useful as a comparison.
So mine is twice that in half the time, so 4 times more wear, but I use it 6 hours per day.
Again these figures are not relevant to use.
For example if the battery is fully dischraged and charged every day then yes 1000 plus is three years.
That’s only 7% in year.
I use the laptop plugged in : The drain from the battery is greater than from the supply by design so I could say I use the battery whislt plugged in for some 4 hours a day but this is not clearly related to cycles though it clear is.
48 cycles in less than 5 months: Cycles get shorter each time
I have 48 cycles with 5% wear: if that continues it will be 10% in 10 months or 100 cycles in 10 months, or 120 a year and 12%
Given the idea of a 20% loss of capacity over 1000 the second year I may max out at 120 + as each cycle is smaller.
So maybe 250 cycles in two years and a 25% loss
1000 cycles before 20% ~ I don’t think so
At 4 hours a day (6 x 0.67 for battery drain whilst plugged in) I000 cycles will last me 8 years before a loss of 20%, so highly unlikley…
Ok if my maths are wrong my excuse will be my age.
But the facts are 5% loss after 5 months and 48 cycles down with 6 hours of plugged in use.
Update Aug 11th
For the last couple of weeks I have been uisng the laptop plugged into power for around 6 hours a day. Unsurprissingly and thankfully there is no shown wear. Today I charged to 100% from my usual 78% and as I hoped the wear has recorded a dowward trend. This has happened each time I charge to 100%. Then for a few days after it takes a while to stabalise.
Below is a graph of data from when I received, initially I wasn’t recording data so exptrapolated some from old data.
I won’t annotate the graphs as they are fairly self explanitory.
I don’t think the battery wear information can be very accurate in general, 11 months on my computer shows 2.6% wear at 53577mWh. I never lowered the max charge and use the computer in my classroom 5-7 hours a day from last October through July.
I think these are only accurate to within a few percent, because there’s no way I have lost 1.3% of wear since I posted 6 months ago.
Just thought I’d throw my anecdotal two cents at everyone, anyway. Can’t complain that my battery is reversing it’s wear, but here’s hoping the thing isn’t lying.
HWiNFO64 7.22 (I know it’s old, but I prefer consistency, no sense updating if it works and hardware is unchanged) and Windows 11 on 1135G7 for those wondering.
Edit: corrections above and whoa 100th post. I’m such a child for being excited about it.
