Can you do a 100% test not in airplane mode for both 12 and 29w?
Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Other Fast charging
- Thread starter kat.hayes
- Start date
- Sort by reaction score
Can you do a 100% test not in airplane mode for both 12 and 29w?
Will overlay 12w results tomorrow and compare against original results
Heh... a bit awkward, but I was pretty surreptitious about it.
I can't really do a thorough test without draining it completely though - timed tests unfortunately aren't necessarily accurate, because it doesn't show the actual amount of power flowing into the phone. What we really need is someone to measure fast charging the iPhone 8 from 0% to 100% while connected to a power meter with readings.
Well... here’s my 12w results. Taken at face value I’d say the outlay for 29w not worth it if you have an iPad charger kicking around. However, I’ve seen a couple of sources showing the phone fast charging to 52% in 30mins in line with Apple’s testing. Suggests something not right with my first test. Bad wiring perhaps? Under the same conditions for both so hopefully a somewhat useful exercise
Attachments
Yes something seems wrong with the 29W setup. One thing is that the cable is extremely important - no other cable except for Apple's own USB-C to lightning cable will allow for fast charging - any kind of USB-A to USB-C adapter or third party cable from Amazon will not work.
Given how sensitive the cable is, it might be worth trying to get another cable to test it out - your cable may be defective.
Thought this was interesting...
Similar experience to 100%. I trailed by 4% at the 30min mark and 2% at the one hour mark when in airplane mode so not too dissimilar in the end
Similar experience to 100%. I trailed by 4% at the 30min mark and 2% at the one hour mark when in airplane mode so not too dissimilar in the end
Thanks! The video is instructive - particularly at 1m26s (the forum doesn't allow time bookmarks) shows that they tie at about 93%. Seems like Apple is very conservative when topping up the final charge. I'm not a battery engineer, so I'm not sure if this rather conservative approach is good or bad.
Regardless, I find myself rather disappointed at the supposed "fast charge". It's a lot slower than I expected. I'm waiting for the iPhone X before I can actually run tests myself, but so far it seems mostly "meh"
How interesting. I definitely won’t be shelling out money for a usb c charger until Anker comes out with one near the $20 mark, if they do. Having batteries as a huge hobby of mine, read Isidor’s book several times I understand slowing down the charge past 90 being very beneficial for battery longevity. But it doesn’t seem terribly faster than the iPad 12w brick.
I will be taking @Newtons Apple approach and have already purchased two wireless chargers - one for Work and one for next to my bed. I’ll just charge overnight.
If I need a rapid charger my Anker bricks and chargers should suffice.
I will be taking @Newtons Apple approach and have already purchased two wireless chargers - one for Work and one for next to my bed. I’ll just charge overnight.
If I need a rapid charger my Anker bricks and chargers should suffice.
Hmmm, well I already bought a 29w, but a third party for $22. But thanks for work and stats! Although these tests don’t really show us real world results. Nobody charges there phone in airplane mode, you know..
This is good to see tho in comparison. Cause the real point of “fast charge” is to get you enough juice to last when you need to go somewhere in 30 min. So really it has done its job. It isn’t good to see getting to 100% from 90% and how much slower it is. Maybe it doesn’t have INOV and just slows it at the lowest volts possible for that battery instead of negotiating for optimum voltage...
Can you try with a charger that does 9v instead of 14.5v that the 29w Apple charger provides. I suspect the phone is charging at 5v instead of higher voltage and the thicker wire on the Apple usb-c cable is making the marginal difference.
You might try the 61w or 87w MacBook Pro charger if you have access. They have 9v@2A support.
I just watched this video, and apparently the Anker Powerline + lightning cable paired with the 12W adapter performs pretty well. That's what I'm going with, in additional to a RavPower Wireless Quick charger ($14) with a QC Adapter I found for $7.
I bought this for $19 for my car, and a 29w for $23 for Home.
[doublepost=1506266003][/doublepost]
I don’t see a need for wireless yet, till they make it faster. If it’s for all night slow charging then it doesn’t really matter if it’s plugged in or not. But I use mine in bed a lot and can’t use it on a stand! (On level 1400 in Angry Birds) lol
No probs. Just to reiterate the curves presented above are indicative of real world (well mine at least
) as they weren’t in airplane mode while charging
Apple is supposed to be coming out with a software update to enable wireless quick charging @7.5W. Maybe with iOS 11.0.1.
Ok here is my data. This is an iphone 8+ with wifi and blue tooth on. Next time i will put it in airplane mode to test that. This is with the Apple 6ft cable and Audkey 29W charger
Battery % Time (M:sec)
1 0:00
3 0:50
5 1:50
10 4:56
17 10:00
25 14:53
35 22:00
47 30:00
50 32:07
55 35:30
60 38:30
65 42:45
70 46:14
79 60:00
after this i got distracted by football. sorry
[doublepost=1506277515][/doublepost]
can you provide a link for the car charger? also let us know how it works when you get it
Last edited:
Thank you! These results look quite consistent with what @johnyslats reported. I’m inclined to agree that there’s no advantage over 12W charging. Apple’s marketing is rather confusing then - I’m not sure why they even decided to tout “fast charging” as a feature.
I am really disappointed! seem like false advertising to me! unless a new update changes this...
How interesting! That was my first question, I always knew the iPhone charged really fast with the 12W (or an Anker charger). When I first saw the advertisement - first thought was, how much faster than the 12w.
Well, I'm happy. I may get one if Anker comes out with an 18w for the iPhone... still pretty interesting.
Well, I'm happy. I may get one if Anker comes out with an 18w for the iPhone... still pretty interesting.
Wait are you guys sayIng this is the exact same speed as the iPhone 7+? Cause the fast charge capibility comes from the phone too not just the cables..
[doublepost=1506290948][/doublepost]
No probs. Just to reiterate the curves presented above are indicative of real world (well mine at least
Oh ok, nice. Thought u were in airplane mode.
That appears to be the case - this reference forum post: http://forums.whirlpool.net.au/archive/2603139 seems very similar to the reported speeds in this thread.
The “fast charging” is so disappointing that I’m beginning to wonder if Apple forgot to enable it in iOS 11.
Well...
Not sure what kind of “fast charhing” is this but my iPhone 7 Plus which does not support fast charge just charged up from 0-100 in exactly 100 minutes using Apple 29w/USB-C/Lightning cable.
0-50% in 35 minutes. That’s something close to the promissed 50% in 30 minutes.
The phone was connected to the Wi-Fi, LTE, and I was using notes time to time. iOS11.
P.S. That’s 20 minutes faster than it took for somebody to charge the 8 Plus using the same method:
https://forums.macrumors.com/threads/iphone-8-plus-fast-charging-results.2070677/
...Does not feel right for the 8.
23.05 0%
23.15 14
23.25 28
23.35 42
23.45 54
23.55 66
00.05 76
00.09 80
00.15 84
00.25 90
00.35 96
00.40 98
00.45 100%
Not sure what kind of “fast charhing” is this but my iPhone 7 Plus which does not support fast charge just charged up from 0-100 in exactly 100 minutes using Apple 29w/USB-C/Lightning cable.
0-50% in 35 minutes. That’s something close to the promissed 50% in 30 minutes.
The phone was connected to the Wi-Fi, LTE, and I was using notes time to time. iOS11.
P.S. That’s 20 minutes faster than it took for somebody to charge the 8 Plus using the same method:
https://forums.macrumors.com/threads/iphone-8-plus-fast-charging-results.2070677/
...Does not feel right for the 8.
23.05 0%
23.15 14
23.25 28
23.35 42
23.45 54
23.55 66
00.05 76
00.09 80
00.15 84
00.25 90
00.35 96
00.40 98
00.45 100%