Tim: > > I still question the notion that this is a good idea. If you do not > > fully charge your battery it doesn't last as long, so you end up > > charging it more often. *That* (how often it's charged) is not good > > for battery life. And it's also a pain for the user, in that your > > device may not run for as long as you need it to. And that's certainly > > a case for some devices like phones, where you end having to recharge > > it during the day, rather than having one charge last for the entire > > day, or longer.
Stephen Morris: > Information being supplied on the methodology for the 80% charging is it > make your battery last longer, particularly with phones where they say > your battery will last longer if you only 80% charge it and don't let it > get below 10% charged before recharging it. This is based on the ground > that charging to 100% and letting your batter get flat destroys your > batter life. Oh yes, I've heard that. And that's what I question. I'm not convinced. Yes, flattening batteries too much kills them. Leaving them flat for a long time before recharging is bad for them too. So does charging them more often, which will happen when you charge them less fully. Heat's bad, too, which is why most batteries are smart charged. And that's managed by the device, not the charger. An inadequate charger may only be useful for slow charging, but it's the device (e.g. phone or laptop) that manages charging the battery and will do fast charging if it's possible. It monitors a variety of factors while charging (voltage, current, temperature). In the time I've been using rechargeable batteries since the 1990s, I'd never want to charge them less than 100%, because they just will not power the equipment long enough on a single charge. We've always wanted the longest running time possible out of the batteries while we're using them. Particularly with devices where you can't simply swap a battery pack and carry on using it. That's with everything from NiCads, lead-acid, nickel metal hydride, and lithium ion. With us that started off with equipment that needed to run for hours (video recording and sound equipment), laptops, then phones that you want to run all day long (at least) on a single charge. If your phone is dead part way through the day because a less-than-full charge can only manage that, it's not of much use. If you have to charge your phone twice a day instead of once, *that* will have a negative effect on its battery life. Even worse if you end up doing it three times a day. In some cases, that extra recharging is a serious negative effect. Some batteries have been assessed to have quite a limited number of charges. And the conspiracy theorist might dare say some manufacturer's are probably going to count them, and terminate the battery when they think it should die, like some printer manufacturers do with some ink tanks. But from my point of view, the biggest problem is less about battery death and more about (with something like a phone, or laptop) is not having it operable all day when you need it to be. -- uname -rsvp Linux 3.10.0-1160.119.1.el7.x86_64 #1 SMP Tue Jun 4 14:43:51 UTC 2024 x86_64 (yes, this is the output from uname for this PC when I posted) Boilerplate: All unexpected mail to my mailbox is automatically deleted. I will only get to see the messages that are posted to the mailing list. -- _______________________________________________ users mailing list -- [email protected] To unsubscribe send an email to [email protected] Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/[email protected] Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
