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iPhone 8/Plus Just got a fresh new battery. Tips?

M

Motionblurrr

macrumors 65816
Original poster
Jul 1, 2008
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hey guys, I just recently upgraded to an Phone 8 Plus 256GB from an aging iPhone 6 Plus.

I just got my battery replaced at the Apple store, so my capacity now sits at 100%.

I’ve searched around and came across some threads about the best way to preserve or use a battery but they usually turned into a huge argument.

What *is* the best way to charge/preserve/use an iPhone with a 100% battery? Use it and forget it? Or keep it topped up if I’m around a power source? Has Apple chimed in on how to properly charge? I don’t want to get obsessed about it but I do plan on using this awesome phone for a while. :D
 
Motionblurrr said:
hey guys, I just recently upgraded to an Phone 8 Plus 256GB from an aging iPhone 6 Plus.

I just got my battery replaced at the Apple store, so my capacity now sits at 100%.

I’ve searched around and came across some threads about the best way to preserve or use a battery but they usually turned into a huge argument.

What *is* the best way to charge/preserve/use an iPhone with a 100% battery? Use it and forget it? Or keep it topped up if I’m around a power source? Has Apple chimed in on how to properly charge? I don’t want to get obsessed about it but I do plan on using this awesome phone for a while. :D
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I plug mine in at night when I go to bed, unplug when I get up. I have an X now but have done this with every IPhone and never had a battery issue. I’d say don’t put the percentage number on the screen as well, especially if your going to obsess over it.
 
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JoeyD74 said:
I plug mine in at night when I go to bed, unplug when I get up. I have an X now but have done this with every IPhone and never had a battery issue. I’d say don’t put the percentage number on the screen as well, especially if your going to obsess over it.
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Thanks :) Yeah, I haven’t used the percentage meter on the battery since the iPhone 5S so I know exactly what you mean.

I just want a healthy battery for a while, so when the iPhone 11 or whatever it’s called drops, I can decide if I want to jump ship to a non-touch ID iPhone.
 
Thank you guys :)

Another question: It makes more sense to leave all of the settings on default on a new iPhone (battery) right? I used to turn off so much crap on my old 6 Plus to get that last bit of juice out of it.

Any suggestions?
 
Batteries hate extremes and heat. The only 2 things I worry about anymore are not using it while charging it and I always try to keep it above 25%. A battery is happiest between 50-60%, but it’s not realistic to keep it there. A lot of people compromise and keep their phone between 40-80%, but that’s way more work than it’s worth. Even if you completely abuse it, it’ll last 12-18 months. I’m wondering why you already replaced it? Just cause it was so cheap?
 
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tonybarnaby said:
Batteries hate extremes and heat. The only 2 things I worry about anymore are not using it while charging it and I always try to keep it above 25%. A battery is happiest between 50-60%, but it’s not realistic to keep it there. A lot of people compromise and keep their phone between 40-80%, but that’s way more work than it’s worth. Even if you completely abuse it, it’ll last 12-18 months. I’m wondering why you already replaced it? Just cause it was so cheap?
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My friend had a mint silver 8 Plus that he wanted to sell so I bought it. The battery capacity was like 82%. Which was kind of funny because my 4 year old 6 Plus was 86% on the original battery. :)

I just wanted to start fresh and I’m not sure how long I’m going to keep this phone (maybe 2+ years again?) I wanted to not get throttled in the meantime while iOS13 drops this year. The 8 Plus is crazy fast to me so I shouldn’t have too much issues running new iOS versions. The 6+ 1GB of RAM was very brutal these past 2 years. :(
 
Motionblurrr said:
My friend had a mint silver 8 Plus that he wanted to sell so I bought it. The battery capacity was like 82%. Which was kind of funny because my 4 year old 6 Plus was 86% on the original battery. :)

I just wanted to start fresh and I’m not sure how long I’m going to keep this phone (maybe 2+ years again?) I wanted to not get throttled in the meantime while iOS13 drops this year. The 8 Plus is crazy fast to me so I shouldn’t have too much issues running new iOS versions. The 6+ 1GB of RAM was very brutal these past 2 years. :(
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82% is the lowest I’ve ever seen on an 8+, wow. Yeah, just use it as much as you want and in 2 years I’m sure you’ll probably get something else. If not, pay the small fee for a new battery. My wife abuses her launch X, and she’s at 97%. I don’t trust the capacity estimates on these phones to be honest.
 
Motionblurrr said:
hey guys, I just recently upgraded to an Phone 8 Plus 256GB from an aging iPhone 6 Plus.

I just got my battery replaced at the Apple store, so my capacity now sits at 100%.

I’ve searched around and came across some threads about the best way to preserve or use a battery but they usually turned into a huge argument.

What *is* the best way to charge/preserve/use an iPhone with a 100% battery? Use it and forget it? Or keep it topped up if I’m around a power source? Has Apple chimed in on how to properly charge? I don’t want to get obsessed about it but I do plan on using this awesome phone for a while. :D
Click to expand...

Use it as you like. Charge it as you like. Despite the various arguments you will hear, as long as you’re not outright abusing you battery by exposing it to temperature extremes for prolonged periods or leave it completely empty, nothing you do is likely to have a significant effect on the battery’s longevity.
 
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I've swapped my iPhone 6 battery in May 17 2018 and it still shows 100% capacity.
I don't know if this can help:
- I don't charge the phone every night, just every two days (my little usage of the mobile allow me to do this)
- When I charge it, I wait to finish and then disconnect, so normally i don't leave it charging during night.
- I also don't leave the phone go under 20%.

As a reference, my wife changed the battery the same day (iPhone 6S plus) and it is showing 95% capacity. But of course, she uses the phone more than me :)
 
One huge thing is that not all batteries are filled the same amount from the factory. Some will come around 103%, and others will be under 100% from day 1. It’s just like a can of soda. They don’t all have the same exact ml in them, even if they all claim to be 12 ounces. Some have more, some have less.

Someone who “wins the battery lottery” will have a phone that stays at 100% health a lot longer, simply because it started its life at 103%. The person whose battery came at 98% will show 99% health a lot sooner.
 
Just keep it from running really low. When it hits around 20%, plug it in. It doesn't have to be any kind of crazy system or anything to keep the battery in good health. But the #1 thing (besides heat or other physical damage) that will kill lithium ion batteries is running them really low on charge.

I would: charge it at night, use it and don't worry about it until the battery is getting under 30%, then plug it in when you have a good opportunity to and charge it for a while. You don't have to charge it to 100%. Just charge it for a while so you have enough juice for the rest of the day.
 
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Thanks guys! I'll keep that in mind, I'm using the 10w charger for overnight charging and the iPad brick for the day if I need some juice.
 
If you go to Battery University.com, they have all the info you'll ever want about li-ion batteries. Problem is... once you see the graphs of battery life span vs depth of discharge and charge levels, you'll likely obsess on the battery trying to keep the charge level at the ideal state (65% to 75%). So my advice is don't go there if you've got an obsessive personality, otherwise you'll become a chronic plugger/unplugger the rest of your life (which isn't really a bad thing).

I'm a attentive battery level enthusiast and follow roughly the advice given at battery university, and my battery is at 96.7% capacity at 975 cycles (3 year old phone). I think it's fun.
image.jpeg
 
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now i see it said:
If you go to Battery University.com, they have all the info you'll ever want about li-ion batteries. Problem is... once you see the graphs of battery life span vs depth of discharge and charge levels, you'll likely obsess on the battery trying to keep the charge level at the ideal state (65% to 75%). So my advice is don't go there if you've got an obsessive personality, otherwise you'll become a chronic plugger/unplugger the rest of your life (which isn't really a bad thing).

I'm a attentive battery level enthusiast and follow roughly the advice given at battery university, and my battery is at 96.7% capacity at 975 cycles (3 year old phone). I think it's fun.
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Android is 10x worse for battery OCD due to all the battery apps plus real time battery temperature notifications.
 
Had my iPhone 7 battery replaced 29th Dec aswell been charging it between 35% and 40 every 2 days sometimes I do tend to slack and let it just go under 20% :)
 
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