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From: Frank Slootweg <this@ddress.is.invalid>
Newsgroups: comp.mobile.android
Subject: Re: "Downloading en-US"
Date: 7 Dec 2024 18:52:57 GMT
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micky <NONONOmisc07@fmguy.com> wrote:
[...]

> No battery stories with phones but with a laptop, every time I'd run the
> battery to near zero** (because the charger came unplugged and I didn't
> notice it, after re-charging, going by Nirsoft's free BatteryInfoView,
> I'd have lost 10% from Battery Health.  Other than those times, it
> didn't go down, but 3 or 4 times down to near zero and the battery
> wouldn't take a charge, wouldn't start the laptop.  Coudn't find for
> sale a battery as big as the original, maybe only 80%, but it's now at
> 100% battery health of that 80%.  

  Note that, as I've mentioned before, general purpose utilities like
BatteryInfoView don't tell the truth (read: cannot tell the truth). So
always try to also use a utility from the manufacturer of the laptop.

  For example, for my laptop, BatteryInfoView says:

"Full Charged Capacity	38,397 mWh
 Designed Capacity	38,397 mWh
 Battery Health		100.0%"

  So I might think "Great, still 100% of designed capacity!", but that
can't be, because the laptop is 2 years and 3 months old.

  And indeed, it can't be correct, because the official specs say "41
Wh", so it's 93.7% of designed capacity, not 100%. Not bad, but not
100%.

  Now if I run the "HP Battery Check" utility, i.e. the utility which
came with the laptop and is designed for the laptop, it says:

"Design Capacity:	41 WHr
 Full Charge Capacity:	38 WHr (93%)"
  
  So it gives the same Full Charge Capacity as BatteryInfoView (rounded
down to the nearest integer), but gives the *real* Design Capacity of 41
WHr, instead of the fake/wrong one which BatteryInfoView gave and the
correct battery health of 93%.

  Moral: I use both BatteryInfoView *and* the HP Battery Check utility.
BatteryInfoView gives me more information - for example the Battery Log
over time -, but the limited information which the HP Battery Check
utility gives, is more_reliable/correct.

> **Hmmm.  Oops, I guess this is the opposite issue of only charging to
> 80%.