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Zune55

macrumors 65816
Original poster
May 2, 2015
1,050
465
More specifically iPhone 6 Plus or any iPhone which was made slower? Mine is slow and want to replace the battery. Did you folks see any noticeable difference? Please let me know. Thanks
 

neverloyal

macrumors newbie
Dec 28, 2017
25
52
Yes for my 6s, phone was extremely frustrating to use typing text would mean waiting for seconds for it to appear, apps took forever to load etc. After a new battery it was back to pre ios 11 performance and felt like brand new again.

I would have stuck with it as my main phone if I knew a simple battery replacement would restore performance.
 

Vermifuge

macrumors 68020
Mar 7, 2009
2,067
1,589
No. My 6s seemed the same before and after battery replacement.

Did you run geek bench before having it swapped?
[doublepost=1516192633][/doublepost]
According to CPUDasherX my 6s was running at 911 Mhz @ full charge, after replacing battery it now runs at 1848 Mhz. Does feel alot smoother and responsive now.

Right, Geekbench had me at s 835 / m 1372 post install it was back in like with other 6 Plus.
 
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Act3

macrumors 68020
Sep 26, 2014
2,353
2,789
USA
This issue I described below back in November went away after new battery.

https://forums.macrumors.com/threads/iphone-6s-ios-11-1-2.2089586/#post-25491700
[doublepost=1516193162][/doublepost]
Did you run geek bench before having it swapped?
[doublepost=1516192633][/doublepost]

Right, Geekbench had me at s 835 / m 1372 post install it was back in like with other 6 Plus.

I had my battery changed on dec 11.

AD837931-E68F-4BA3-BF98-564C95972183.jpeg
 

I7guy

macrumors Nehalem
Nov 30, 2013
34,198
23,912
Gotta be in it to win it
Did you run geek bench before having it swapped?
[doublepost=1516192633][/doublepost]

Right, Geekbench had me at s 835 / m 1372 post install it was back in like with other 6 Plus.
No, it felt the same. But I guess that’s my point, if it felt the same it was perfectly usable even if it was throttled. Since iOS 11 performance has been fairly consistent in an acceptable manner.
 

MacDawg

Moderator emeritus
Mar 20, 2004
19,823
4,503
"Between the Hedges"
Unfortunately I think some (not all) feel like a battery change is like a magic bullet that regardless of circumstances will boost performance significantly, sort of like a $29 upgrade. With that in mind, I have no doubt that some are seeking a battery change just because they can, not because they necessarily need one. That and some (not all) want to sell their phones now and use a new battery as bargaining chip.
 

Vermifuge

macrumors 68020
Mar 7, 2009
2,067
1,589
Unfortunately I think some (not all) feel like a battery change is like a magic bullet that regardless of circumstances will boost performance significantly, sort of like a $29 upgrade. With that in mind, I have no doubt that some are seeking a battery change just because they can, not because they necessarily need one. That and some (not all) want to sell their phones now and use a new battery as bargaining chip.

The price of secondhand 6/6s is probably falling faster than bitcoin.
 
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ftaok

macrumors 603
Jan 23, 2002
6,486
1,571
East Coast
I changed the battery on my 6 using a 3rd party battery. My Geekbench scores were about half speed with the bad battery. New battery got it back to the Geekbench standards.

Performance wise (iOS 11.2.1) with the old battery was atrocious. Practically unusable. With the new battery, it's OK ... much better than when throttled, but nowhere near the performance under iOS 10.3.?

For me, it was worth it as I can now go one more year and pick up the X-S2 this fall.

NOTE - my wife's iPhone6 (bought the same day) is still on her original battery (90+% health) and exhibits no slowdown or throttling. Haven't run Geekbench on her phone, but it's very usable and quite fast. Maybe faster than mine, but that could be me setting up a story for why I need a $1300 phone. haha
 

JackieInCo

Suspended
Jul 18, 2013
5,178
1,601
Colorado
I replaced the battery in my 6S+ back in November before all this throttling news came out. I never noticed that it was slower. The only reason I replaced the battery was that it would suddenly drop from 70% down to around 17% with no usage whatsoever while I was at work and it seemed to drain the battery on my watch at the same time.

I never did any benchmarks because I never had a reason to. The slowdown news didn't break till December and my 6S+ seemed just as fast as it always did before I got the battery replaced in November.
 

deferredAnon

macrumors 6502
Dec 25, 2017
259
268
US
I replaced the battery in my 6S+ back in November before all this throttling news came out. I never noticed that it was slower. The only reason I replaced the battery was that it would suddenly drop from 70% down to around 17% with no usage whatsoever while I was at work and it seemed to drain the battery on my watch at the same time.

I never did any benchmarks because I never had a reason to. The slowdown news didn't break till December and my 6S+ seemed just as fast as it always did before I got the battery replaced in November.
Well, Apple escalated the slowdown with iOS 11.2, which was released in early December.
 
Last edited:

eyeseeyou

macrumors 68040
Feb 4, 2011
3,383
1,590
Anyone here who bought a new iphone feel like returning it now and just sticking with the iphone 6(plus) with a new battery?
 

Zune55

macrumors 65816
Original poster
May 2, 2015
1,050
465
Yes, Was getting a lot of app crashing before the update. Post update it was noticeably slower. Battery seems to have brought it back to factory spec.

Thank you so much everybody for your replies, that’s really good to know that the most people’s iPhone speed has drastically improved.
 

Zune55

macrumors 65816
Original poster
May 2, 2015
1,050
465

Vermifuge

macrumors 68020
Mar 7, 2009
2,067
1,589
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Zune55

macrumors 65816
Original poster
May 2, 2015
1,050
465
The update will let you disable the slowdown if your battery has not been replaced. Replacing the battery will automatically disable the slowdown.

Thanks for the explanation, i was not sure before.
 

sirwillpearson

macrumors newbie
Aug 14, 2018
2
0
More specifically iPhone 6 Plus or any iPhone which was made slower? Mine is slow and want to replace the battery. Did you folks see any noticeable difference? Please let me know. Thanks

The 'un-throttling' (dethrottling?) - does that happen automatically if your change the battery yourself - or only if apple do it? I have a iPhone 5S that is struggling...
 
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