Technology

59373 readers

8430 users here now

This is a most excellent place for technology news and articles.

Our Rules

Follow the lemmy.world rules.
Only tech related content.
Be excellent to each another!
Mod approved content bots can post up to 10 articles per day.
Threads asking for personal tech support may be deleted.
Politics threads may be removed.
No memes allowed as posts, OK to post as comments.
Only approved bots from the list below, to ask if your bot can be added please contact us.
Check for duplicates before posting, duplicates may be removed

Approved Bots

founded 1 year ago

MODERATORS

Healthiest way to charge Lithium Ion (lemmy.world)

submitted 3 weeks ago by root@lemmy.world to c/technology@lemmy.world

33 comments fedilink hide all child comments

When charging a phone wirelessly, there is sometimes significant heat generated. That combined with higher charging rates that are now coming out with the Qi 2 standard make me wonder what the ideal charge for the battery would be.

Most of the time I just toss my phone onto a wireless charger before bed, and don’t really care how quickly it charges. Would it be better to use a 5W brick with a charging pad? Should wireless be avoided and usb used instead?

you are viewing a single comment's thread
view the rest of the comments

[–] falkerie71@sh.itjust.works 2 points 3 weeks ago

Going wireless will always add a layer of energy loss, in this case heat, during charging, no matter if it is properly aligned with magnets or not. So first step to reducing heat is to charge wired only.

Fast charging is also a way of generating more heat while charging, so limiting the charge speed is also a way to reduce that. If you're going to charge your phone through the night, it's probably a good idea to use a 5W brick to manually limit the charge speed. A quick way to enforce that is to use the USB-A port on the brick instead of the C port, that way the PD standard won't be activated and will charge at a slower rate. (Though if your phone fast charges through USB-A like Quick Charge or SuperVOOC, it will not default to 5W. Use a cheapo brick or a computer USB-A port instead.)

Last would be to limit the charge level to 80%. Batteries are the most stable at half charge and stressed at both extremes, but that's not practical for anyone to limit their devices between 40~60% charge, so 20~80% is a better compromise. iPhones now have the ability to limit their charge to 80% or 90% in iOS 18, so set that if you can. On Android, you'll need to see if your phone and OS supports it.