Or just use the fast charger for when you need it...
wireless for everyday use.
wireless for everyday use.
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iPhone XR What a 18W regret
- Thread starter white4s
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Thermals above design perimeters for extended periods of time has a negative effect on battery longevity. This mostly applies to the battery when its nearing its fully charged capacity. The charging IC monitors battery temp and will reduce power consumption if it needs too and at 80% charge the fast charger drops back to 5volts like current chargers.
Fast charging causes higher thermals because its more efficient delivering power.
Watts (power) = volts x amps (current). Comparatively speaking fast charing uses high volts to obtain its wattage and normal charging uses higher amps to obtain its wattage.
The problem with this is when current meets resistance the voltage will drop. The higher the current the more the voltage will drop.
When you are charging with a 5volt 2.4amp 12watt charger you will be lucky to get 10 watts to the source due to those loses.
Here is a 12.2 watt power source that drops to 10.5 watt at the load because of the resistance in the Lightning cable, and its a BRAND NEW APPLE Lightning cable.
![IMG_6989.jpeg]( "IMG_6989.jpeg")
The voltage is 4.4 volts at the load which is why the wattage is so low.
![IMG_6990.jpeg]( "IMG_6990.jpeg")
In practice the voltage regulator in an iPhone/iPad would have reduced current to maintain a higher voltage before dropping to 4.4v.
You'll only get 12 watts from a 5 volt source (iPad charger) on a 6"-12" cable.
Many people describe fast charging as cramming more power into the iPhone, this isn't completely accurate. A battery always has to be charged from a source with higher potential, if not the battery would send power back to the charger (in a simple circuit not iPhone). Fast charging just takes advantage of the lowered internal resistance the battery has at a lower charge state.
Personally I wouldn't worry about it. If you are then charge your iPhone from a standard USB source.
Fast charging causes higher thermals because its more efficient delivering power.
Watts (power) = volts x amps (current). Comparatively speaking fast charing uses high volts to obtain its wattage and normal charging uses higher amps to obtain its wattage.
The problem with this is when current meets resistance the voltage will drop. The higher the current the more the voltage will drop.
When you are charging with a 5volt 2.4amp 12watt charger you will be lucky to get 10 watts to the source due to those loses.
Here is a 12.2 watt power source that drops to 10.5 watt at the load because of the resistance in the Lightning cable, and its a BRAND NEW APPLE Lightning cable.
The voltage is 4.4 volts at the load which is why the wattage is so low.
In practice the voltage regulator in an iPhone/iPad would have reduced current to maintain a higher voltage before dropping to 4.4v.
You'll only get 12 watts from a 5 volt source (iPad charger) on a 6"-12" cable.
Many people describe fast charging as cramming more power into the iPhone, this isn't completely accurate. A battery always has to be charged from a source with higher potential, if not the battery would send power back to the charger (in a simple circuit not iPhone). Fast charging just takes advantage of the lowered internal resistance the battery has at a lower charge state.
Personally I wouldn't worry about it. If you are then charge your iPhone from a standard USB source.
18 W ?
Not in a significant way.
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I’m never impressed by YouTube “experts” (especially the ones streaming from a kitchen ... ?).
And your link provided no useful data at all on the matter.
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There have been tests to show the speed difference between a 10W and a 18W charging bricks is insignificant. So a traditional iPad charger would do for an iPhone.
Lol, brilliant!
and yes agreed! You should see the iPhone Facebook Groups and Reddit, absolutely inundated with threads like this to.
Really can't see it - technically yes charging faster does more damage to the battery, but it's such a small difference you'd probably only begin to notice over a timescale of years, not months.
I kinda wish Apple never included the 'Health' feature. My first iPhone was a 3GS. then a 4. Now a 6S. I used to deal all the time with Fandroids over the whole 'non-removable battery' mess, but in my experience, Apple products last a LONG time with their original battery. my 3GS was 5 years old when i upgraded to a 4, I found a decade-old iPhone 4 in a junkyard car and it holds a charge, and my 6S is still showing 100% battery health. I even got a PowerBook G4 Titanium laptop that has a battery still holding a charge. Grant it's not near my new MBP but it does work. Most Compaq or HP laptops have batteries that don't do jack after a year or two.
Oh and most of my Android phones removable batteries were unable to do much after a year.
Oh and most of my Android phones removable batteries were unable to do much after a year.
No problem. It dropped to 98% and stayed there until I started using 18W this past April
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So? That's not normal.
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I don't use wireless.
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I noticed the increase of heat almost right away to the point I started taking off the case while charging because it was trapping the heat in.
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Well my phone use has been consistently the same the whole time I've had it. Average 2 day battery cycle
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The phone never got hot with the 5W, never. The heat it gets from 18W is enough where I started taking off the case because it was trapping the heat
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It causes more heat while charging which in return is doing the damage.
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Has nothing to do with any of that. This is a $900 phone that I'd like to last as long as possible. Simple as that
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If your case doesn’t allow the heat to dissipate at all then it’s probably time to switch cases if you’d like to keep using the 18W charger.
Which case are you using by the way?
Let's do the math. Assuming you bought the XR at launch. You say you lost 2% (100 to 98) until April. So you lost 2% in the first 7 months. You then lost 3% additional since April, which is also 7 (almost 8) months. This is normal and given the fact that these numbers are just estimated I'd be even less concerned. Even if fast charging did cause you to lose an additional 1% in 7-8 months, then you'd lose maybe an additional 3% over regular/slow charging if you keep the phone 2 more years.
I don't know what anyone else is using but my 6S has a simple Otter Box Commuter case.
I charge it with some $10 'Road Gear' charging dock with multiple USB to lightning cables and 'IQ' charging along with my iPad, Pencil, Generic Android stuff, etc.
Never had an issue with ANY Apple device using a non-removable battery--whether it was from 2010 or 2019. Longevity is one of Apple's strong suits. For Christ's Sake, just ignore that stupid health reading. it's meaningless. Causes nothing more than paranoia.
My Mom has a 6S she's used since the 6S launched. It gets HEAVY usage (she plays games, uses it for Facebook and so on) and the battery health is showing like 65%. She still gets a day or two standby on the thing.
I charge it with some $10 'Road Gear' charging dock with multiple USB to lightning cables and 'IQ' charging along with my iPad, Pencil, Generic Android stuff, etc.
Never had an issue with ANY Apple device using a non-removable battery--whether it was from 2010 or 2019. Longevity is one of Apple's strong suits. For Christ's Sake, just ignore that stupid health reading. it's meaningless. Causes nothing more than paranoia.
My Mom has a 6S she's used since the 6S launched. It gets HEAVY usage (she plays games, uses it for Facebook and so on) and the battery health is showing like 65%. She still gets a day or two standby on the thing.
I agree in regards to all the paranoia and hysteria it has created which has been absurd with people storming down the freeway for a battery replacement just because it hit 90% regardless of real day to day performance.
For me that’s the big issue, people are paying far more attention to that percentage then real use.
I wish Apple would just give a warning when the battery is acting up and give them the option to toggle throttling.
My only issue with that was that we didn’t know it was being throttled and we didn’t have the toggle to undo it.
For me that’s all we needed, a warning and an option.
Streaming from a kitchen? I don't believe I've seen that.
I don't even watch YouTube really, I still get all my info from forums. Maybe that's old fashioned but I get info better from text.
Or probably a note saying it’s just an estimate under the battery health section would do wonders.
I have the Pitaka armor along with it's car mount so I will not be changing cases, it's the only case I like anyway. I already went back to 5W so no more 18W for me. I mostly bought it for fast charging since they take so long to now
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The math adds up but I don't like the heat the 18W generates during charging. No bueno for the battery
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Agreed. YouTube is the worst place to learn something.
Lots of paid shills and uninformed “experts” with a webcam.
The only good thing at Youtube lately is Shango066. Bit cantankerous and a fan of old vacuum tube stuff but his commentary is priceless!
18 W ?
Not in a significant way.
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I’m never impressed by YouTube “experts” (especially the ones streaming from a kitchen ...).
And your link provided no useful data at all on the matter.
).If you’re not familiar with Linus then I’ve got nothing to say. ¯\_(ツ)_/¯.
Linus is an above average Youtuber. I've watched a handful of his videos. (I know the you're wasn't directed at me specifically). While I don't agree with everything he says, he's definitely an above average youtuber. Anthony is awesome.
While I agree there's a LOT of misinformation on youtube, there are a fair amount of youtubers with good knowledge. But most people won't be able to sift through the **** to find the gems.
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