Note that limiting the maximum battery charge to something like 70 % would be more effective in those cases, completely avoiding the high voltages of a full charge.

However, even that seems absurd in such a use case. Does it matter if the old battery in an old phone gets worse? Especially when only used stationary anyway? Especially when the difference is sometime tiny like 5 % vs. 8 % (=3 % saved) capacity loss per year?

[–] wreckedcarzz@lemmy.world 10 points 10 months ago* (last edited 10 months ago) (2 children)

Say you leave it fully charged and you lose 10% usable capacity a year. 5 years in and you have a large-scale power outage, and you were smart enough to buy a beefy ups (and maintain that battery) to power your NAS and network equipment, but because you didn't with the phone, you lose DNS after like 2.5 hours (phone pihole) because the phone is dead. Now what are you going to do, just not look at porn on plex and weep because you can't browse lemmy in the dark? smh, forward thinking would have saved you. Now you gotta get the magazines to fap and make shitposts in mspaint until the grid comes back up.

Treat your batteries well. Enjoy your porn. Make power outages bearable.

Edit: I have a total of 4 ups units for a reason taps forehead

[–] SnotFlickerman@lemmy.blahaj.zone 11 points 10 months ago (1 children)

what are you going to do, just not look at porn

I have a total of 4 ups units for a reason

I think I may have figured out the reason.

[–] wreckedcarzz@lemmy.world 3 points 10 months ago

[–] Nindelofocho@lemmy.world 4 points 10 months ago (2 children)

4 UPSs with maintained batteries but using only an android phone for pihole? I imagine at the 2nd or 3rd UPS you would at least consider a more dedicated device to run pihole and have some redundancy

[–] wreckedcarzz@lemmy.world 2 points 10 months ago* (last edited 10 months ago)

I dunno, it's not my theoretical situation. I have no idea how you'd even run a ph on a smartphone, I thought the most basic thing it will run on is a raspberry pi. Using wlan for both in and out isn't best practices too afaik. I'm just trying to give an example why you shouldn't just abuse tech 'just because'.

[–] wreckedcarzz@lemmy.world 1 points 10 months ago

I dunno, it's not my theoretical situation. I have no idea how you'd even run a ph on a smartphone, I thought the most basic thing is will run on is a raspberry pi. Using wlan for both in and out isn't best practices too afaik. I'm just trying to give an example why you shouldn't just abuse tech 'just because'.

[–] SnotFlickerman@lemmy.blahaj.zone 5 points 10 months ago* (last edited 10 months ago) (1 children)

Does it matter if the old battery in an old phone gets worse?

I was under the impression long-term connection to power would lead to higher likelihood of battery swelling? But I don't know shit about batteries so I could easily be wrong.

I would prefer if I could power a device without needing a battery installed, but that design is rare these days.

[–] Eheran@lemmy.world 4 points 10 months ago

Some phones should work without a battery installed. But with newer phones, removing the battery is not trivial. Maybe that will change in the coming years, let's see the EU push.

In any case, 10 % loss per year is way too high. I am currently at 4.7 % over the last 2 years with a phone from 3 years ago.

[–] 4am@lemm.ee 1 points 10 months ago

If I’m using an old phone for a PiHole, the the battery is there to perform a safe shutdown when the power gets cut, basically a UPS to flush the write logs.