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Next thing Apple needs to do is setup MagSafe batteries to act as the primary battery for iPhones. Right now using a magsafe battery charges the built in batte
by endisneigh 4y ago
Next thing Apple needs to do is setup MagSafe batteries to act as the primary battery for iPhones.
Right now using a magsafe battery charges the built in battery which is then drained by iPhone usage. Ideally what would happen instead is iPhone usage would use the magsafe battery first, then the built in battery.
The result of this is that magsafe batteries effectively are equivalent as replaceable ones.
- vlovich123 4y agoI’m confused. Isn’t that what happens? Some portion goes to operating the phone and the rest to charging the battery? How does it work differently? It doesn’t hook into the same charging system the phone uses for normal? Is that special for MagSafe? I don’t really understand how it’s different and can’t find anything online to read more about this.
- endisneigh 4y agoTo my knowledge if you had a dead battery, and used magsafe you still wouldn't be able to use your phone.
- vlovich123 4y agoCorrect, just like with a power cable. The phone needs to have some charge for basic operational safety. e.g. what happens if the user suddenly unplugs. Or are you saying MagSafe can't charge a dead phone?
- ezfe 4y agoI don't think the current setup is notably different from what you're proposing. The phone does use the MagSafe battery first, it just uses it through the internal battery, but that is just a matter of semantics. It shouldn't have a notable impact on battery health.
- nerdponx 4y ago> It shouldn't have a notable impact on battery health. Is that actually true? Lithium batteries seem kind of fussy.
- ezfe 4y agoBatteries don't like staying at 0% or 100%. They don't like extreme temperatures. And lastly, they don't like cycles. I'm not entirely sure how the internal power routing works, but my understanding is that it's not adding cycles to your battery if you're using the power as it's being added, even if it's going through the battery. You'll likely see more degradation from the wireless charging waste heat effecting the battery.
- JustSomeNobody 4y agoWhy wouldn't it?
- endisneigh 4y agoThe critical importance here is if you plan on keeping your phone for a long time, a degraded internal battery is fundamentally the limit under the current scheme. Or to put it another way, imagine you had a battery that only lasted a single minute, and a magsafe battery that lasts a full day. How long is your phone going to last? What will happen is that both your internal battery and magsafe will be drained, with the magsafe being drained the most. Eventually your internal battery will die, and so will your phone. The other issue with using the internal battery (pass through, or charge) is that you're wearing it down more. Maybe the behavior is different in an iPhone 14?
- mardifoufs 4y agoLi-ion battery degradation is minimal, or even negligible when they aren't cycled across different capacity ranges AFAIK. What that means is that current charging the battery while it is getting discharged at a similar rate (which usually means a constant battert voltage) doesn't induce wear in the same way as charging the battery from a capacity of 10% to 100% (or even from 75% to 80%) does. But that could be different when that constant charge/discharge is happening at high capacity levels, lithium-ion batteries are weirder when they are at their maximim voltage. My knowledge is rusty at this point so let me know if I got any of this wrong.
- JustSomeNobody 4y agoThis would be cool.
- layer8 4y agoMagSafe wastes energy due to its inefficiency. It’s hard to believe Apple’s eco-friendly aspirations when they introduce such features.
- somehnguy 4y agoPeople want wireless charging, that isn't changing. MagSafe is a more efficient version of that compared to basic Qi charging like every other device offers because the magnets ensure perfect alignment.
- layer8 4y agoPeople want a lot of things. I doubt that Apple would have lost significant market share for not providing wireless charging.
- somehnguy 4y agoMy thought here is that the same people complaining about wireless charging efficiency would be the ones complaining if Apple didn't offer it. Can't win. They offer a more efficient version of a feature everyone wants. Complain that everyone else is doing it worse.
- layer8 4y agoIf they “can’t win” anyway, they might as well have chosen the more environmentally-friendly option. The criticism is that they didn’t.
- Gigachad 4y agoThe internal battery is replaceable though. The store will put a new one in for less than the cost of one of those MagSafe batteries.