this post was submitted on 24 Jan 2026
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My laptop's battery has clearly aged over the years (like milk, not wine) and it's starting to become a problem in everyday use. When normally I can easily get through the day with maybe 20-30% remaining, Now my laptop always dies around 3:00, give or take an hour depending on usage. (And I'm not doing many heavy tasks either - mainly web browsing, doing schoolwork, occasionally watching a few internet videos, that sort of thing. I don't play many games, and the ones I do play aren't that intensive, stuff like Minecraft. I don't play any "AAA" games - who came with that anyways? It's a really stupid label. What gives a game 3 As, and why isn't there too many "AA", "A", or "B-E" games? Why not just call them corporate games or similar, since many indie games are just as good, if not better, without using over a hundred gigabytes of storage and being super inefficient...)

When I ran upower, these are the statistics that were produced:

  native-path:          BAT0
  vendor:               ASUSTeK
  model:                UP3404VA
  serial:               123456789
  power supply:         yes
  has history:          yes
  has statistics:       yes
  battery
    present:             yes
    rechargeable:        yes
    state:               discharging
    warning-level:       none
    energy:              28.2173 Wh
    energy-empty:        0 Wh
    energy-full:         48.655 Wh
    energy-full-design:  75.0868 Wh
    voltage-min-design:  7.971 V
    capacity-level:      Normal
    energy-rate:         6.95868 W
    voltage:             7.971 V
    charge-cycles:       823
    time to empty:       4.1 hours
    percentage:          58%
    capacity:            64.7983%
    technology:          lithium-polymer
    icon-name:          'battery-good-symbolic'

The battery capacity is 64.8% of original capacity, which obviously is bad. You can also see that it has sustained over 800 charge cycles (which I assume is a lot. A quick search online shows that someone with around 600 cycles on their laptop being told to replace the battery). Interestingly, the serial is "123456789", which is probably some placeholder and the actual serial number couldn't be found. I wonder why.

My search for the specific battery model that my laptop requires led me to a random teardown article, where they briefly shows the battery with the model #, which is C22N2107, a 75Wh pack. I can find a bunch of third-party replacements online, but no Asus-branded ones.

Given that my battery has clearly aged, should I get an aftermarket battery replacement? Are third-party batteries safe to use? Asus doesn't seem to sell the battery on their e-store, and there's no chance that Asus will offer to replace it for a reasonable amount of money (plus, my warranty is expired by now).

Are third-party batteries any good, and are they safe to use?

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[–] LifeInMultipleChoice@lemmy.world 0 points 2 hours ago (2 children)

Honestly that just sounds worse. Why not use universal individually replaceable components unless you are trying to make a have to buy from us unique product

[–] DebatableRaccoon@lemmy.ca 2 points 2 hours ago

Precisely. Sadly, that's not a decision made by anyone that would frequent this comment section.

[–] stoy@lemmy.zip 1 points 2 hours ago (1 children)
  1. Customers demand thinner laptops, standard cells won't fit.
  2. on HP and Dell's professional laptops you can fairly easily replace the battery, they even publish service manuals with pictures showing how to do it.
[–] LifeInMultipleChoice@lemmy.world 0 points 2 hours ago (1 children)

So you are pro proprietary items, anti universal parts? I just think it's a bad choice overall. I understand they make a battery wrap around components to make it fit, but overall I think it hurts the consumer

[–] stoy@lemmy.zip 1 points 1 hour ago (1 children)

There are plenty times when custom solutions are better than generic ones.

Weather or not this is one such time can be debated.

All I noted in my last post was to explain reality.

Generic battery cells in laptops have been dead for a many years now.

Customers won't accept a laptop thick enough to fit a battery of 18650 cells anymore.

I recently ordered a high power workstation for a user, a Zbook with a U9 cpu and 64GB of ram, that was just maybe 5mm thicker than the normal EliteBook 840 we buy, and holy shit, it felt really old when carrying it.

[–] LifeInMultipleChoice@lemmy.world 1 points 51 minutes ago

Yeah to me I don't understand it either. But that's personal choice. Then again I'm mostly an anti laptop person. Desktops make sense to me, laptops are the laissez faire I want to be a desktop but am demanding to much mobility for a function best performed in a localized hardwired intranet environment. With video games going mostly online I feel it has brought personal computers into a more internet focused setup and less of a local install hard computing get it done space. Thus exactly what companies like Amazon/Microsoft/etc want, creating a subscription based thin/zero client with a subscription to access anything.

Id say fuck the battery unless it's for backup power, and still fuck it then if you don't have your environment set up to run locally, as internet won't work when the modems go out. Is it outdated concepts, sure... But it's only outdated because marketing has pushed us that way in my opinion