Theory regarding iPhone 6 Battery Life

[moonman239]

The battery isn't really at 100% when it says "100%". At that point it's still getting a "topping charge" which gives you another good 10-15% of additional life on top of it.

Will you please tell me why it does that?

 

[woodynorman]

Two things:

1. Two "bars," while low, doesn't cause problems in terms of battery life. It's the absolute fringe signals, barely hanging on to 1 bar, that battery life starts to go south. It's not the low signal itself that causes the issue, but rather the need to constantly transmit and retransmit because there are too many errors in the data coming across.

So, a weak, but stable, signal isn't so bad.

2. In my experience, the bigger battery drain happens when you have no LTE signal, but LTE is enabled. Even if the phone is connected to a good HSPA/"4G" signal, it'll keep trying to find an LTE signal now and then, and that search wastes energy.

So, if you have good LTE coverage, even if it's a consistent 2 bars, leave LTE enabled and you should be fine. But if you find that you're constantly hopping between LTE and 3G/4G, or you never see LTE at all, you'll probably get better battery life by turning off LTE until the coverage improves.

This ^^.

I turned off LTE for voice only and battery life seems better and no more dropped calls.

 

[lordofthereef]

Just skimming the thread, it seems the argument is that 100% battery means different things when charged with different volt chargers?

We can just look into battery technology to know that this is false. I'm not sure there is much else to say here. I realize it may seem like there are differences in real world use, but there has to be something else going on.

 

[aphexacid]

I haven't even touched the charger that came with mine, or my fiances. We have both been using our ipads 12w chargers since day one.

BUT in the spirit of the thread, before i go to bed, i will use a 5W charger and see if the charge "quality" nets me any extra battery life.

My usage is consistant, and my battery life is VERY consistent.

I can tell you that from 100 to 99% i get about 30 minutes. And then to 75% i get about 2 hours and 20 mins or so.

I'll update tomorrow.

 

[scaredpoet]

Will you please tell me why it does that?

It charges that way because LiIon batteries don't like being rapidly topped up all the way to full. If you miss the mark even a little bit on a rapid charge, you might end up overcharging the battery, and bad things happen when you overcharge a LiIon battery. A slow charge at the end drastically reduces the possibility of this happening.

Most people don't know or care to understand this however, and someone at Apple decided that if an iPhone rapidly charges to 85% within an hour, and then lingers from 85 to 100% for another 45 minutes to an hour, they should just call it 100%, or people might assume their iPhone is broken. Unfortunately, Apple might be right in making that assumption.

 

[Wacko247]

Okay...I'm not sure what you're bringing to the convo. First you post a reply with false information, then your response is to tell me what charger I should use.

Nowhere in his post is false information.
You should learn to understand what you read.
He said the iPhone will only draw as much power as it can. Not that it wouldn't charge any faster using the 12w
Perhaps faster isn't always better.

 

[Trey M]

Nowhere in his post is false information.
You should learn to understand what you read.
He said the iPhone will only draw as much power as it can. Not that it wouldn't charge any faster using the 12w
Perhaps faster isn't always better.

Interesting response by a banned member.

Anyways, here's some proof.

...so it shouldn't make a difference what charger you use, and it should charge at the same speed regardless.

I then posted a link, https://www.macrumors.com/2014/09/22/...plus-charging/ , that explains why his post contained false information.

Also, Puma, since you said sorry I wanted to let you know I forgive you. Playing the victim when you unknowingly posted false information is a very interesting tactic on a forum where intelligent conversations take place. But it's okay, I accept your apology and hope you post reliable information rather than information you assume is correct in the future

----------

I haven't even touched the charger that came with mine, or my fiances. We have both been using our ipads 12w chargers since day one.

BUT in the spirit of the thread, before i go to bed, i will use a 5W charger and see if the charge "quality" nets me any extra battery life.

My usage is consistant, and my battery life is VERY consistent.

I can tell you that from 100 to 99% i get about 30 minutes. And then to 75% i get about 2 hours and 20 mins or so.

I'll update tomorrow.

Thanks, based on your common use-case of using 12W adapters, I'll be interested to see what results you get using your 5W adapter for the first time.

----------

It's not too far fetched to make the link between that statement and my statement that you should probably not bother to use the 12W charger then.

Not sure why connecting those dots was so difficult.

If you re-read my initial post, it's clear that I understand that the 5W adapter seems to be the better choice. Here's a quote below.

it seems like my battery lasts significantly longer [using 5W] than when I use my iPad 12W adapter.

That wasn't what I needed clarification on and it's obviously something I understood.

Again, the point of the post was to get others' input on my theory of the quality of charge and to see if others had similar experience with the same thing.

 

[eduschean]

So there is no harm in leaving your phone charging all night because after a while it's just trickle charging anyways? I'm in the habit of trying to charge my phone multiple times a day and not letting the battery go below 50% except for once a month. Funny enough, I leave my phone off the charger all night. When I wake up, I charge it until I leave for work. I'm always between 96-100% when I leave.

 

[aphexacid]

I haven't even touched the charger that came with mine, or my fiances. We have both been using our ipads 12w chargers since day one.

BUT in the spirit of the thread, before i go to bed, i will use a 5W charger and see if the charge "quality" nets me any extra battery life.

My usage is consistant, and my battery life is VERY consistent.

I can tell you that from 100 to 99% i get about 30 minutes. And then to 75% i get about 2 hours and 20 mins or so.

I'll update tomorrow.

Just updating:

I charged my phone over night with a 5w charger. Absolutely nothing was different at all. My usage was same as usual, and by 75% I had 2:18 minutes of usage. So it's exactly the same as with the 12w charger I've been using.

 

[puma1552]

Also, Puma, since you said sorry I wanted to let you know I forgive you. Playing the victim when you unknowingly posted false information is a very interesting tactic on a forum where intelligent conversations take place. But it's okay, I accept your apology and hope you post reliable information rather than information you assume is correct in the future

gee golly i sure appreciate your condescending forgiveness.

 

[QuarterSwede]

Slightly off topic: I can tell you based on experience with my 6 Plus that I'm surprised that Apple even included a 5W charger and didn't opt for the 12W charger because charging a 6 Plus from dead takes around 4 hours; that's simply unacceptable. I bought Anker wall and car chargers after the first day. What a major improvement. It's actually quick enough to give it a decent charge in the car now.

On topic: I really doubt the rate at which you charge a LiIon battery affects it's discharge rate because it's only going to drain at the rate the device needs it, not faster. Letting the device sit for an extended period of time will drain the battery over time but you wouldn't notice a drop of you user daily.

My 6 Plus can last all day and into the next easily if I don't charge it through the day (habit from the old days). That's consistent with most reports on its normal usage battery life.

 

[sniperkill]

Theory regarding iPhone 6 Battery Life

Logically, you are clearly right. But I can tell you that as a longish-term observation I am pretty sure I get longer runtime when the phones charge on the 5W charger.

Well you would get a better, longer lasting charge whenever you use a low watt, slow trickle charge type charger to charge any battery. The slower the charge, the longer it will last. The faster the charge, the faster your battery life will drain.. This is known, proven science...

(Battery charging 101)

 

[5105973]

OP, I've noticed this a long time ago on both my iPad mini retina and my iPhone 5s. If I use the 12 watt charger on them both they wouldn't last as long on a charge. The first time or second time I charged my Plus I tried the 12 watt charger and it actually got very hot while charging so I took it off and it cooled down. I joined this forum and read many posts stating it shouldn't make a difference. But based on my experience I decided at the very least there was something wrong with my 12 watt charger. I only use the iPhone charger for the iPad mini and iPhone now.

Lately the battery life on my Plus has become abysmal among all the other weird little glitches it's experiencing so I'm trying to troubleshoot it. (Concluded I need to scratch it and start over).

 

[mKTank]

Lol there's no such thing as "charge faster drain faster."

Talk about placebo.

 

[sniperkill]

Lol there's no such thing as "charge faster drain faster."

Talk about placebo.

I'll tell you what bud, you go ask anyone that knows anything about batteries and charging them, and they will even tell you that whenever you use a slow, low amp trickle charger, you'll ALWAYS get a longer lasting charge. Call up "Battery Warehouse" (you might have to google them, but their all over the country) but just go and ask them if what i say is true.... Those guys at battery Warehouse know what their talking about when it comes to batteries. They sell just about every battery known to man #

P.S. This will be the last response i give to this thread only cuz I don't want anyone to think im arguing with anyone, lol... But what i say is true. Im too lazy to show proof, if you want proof, contact someone who knows a lot about batteries and they will tell you its true...... And thanks for your 2 cents.... Smh

 

[mKTank]

Edit: Forget it, I'm not wasting my time on these people anymore. It's not my job to make sure everyone stops being ignorant.