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baconroll

macrumors member
Original poster
Jun 5, 2010
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I bought a new iPad Pro 10.5 2 weeks ago. It was manufactured in Sep 2018. I checked battery health with imazing and it was 100%. Last night I checked it again and it has dropped to 98% in just two weeks. That seems a lot and I don’t know if it’s because it was manufactured a year ago and not used until I bought it. That seems a lot to me in 2 weeks. Should I be worried?
 

aakshey

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Jun 13, 2016
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Modern iPads have very poor quality batteries that degrade way too prematurely. There’s nothing that can be done about this.
 
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aakshey

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Jun 13, 2016
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You should take that with a grain of salt. There's no evidence that iPads have poor quality batteries. My 10.5 is still at 100% capacity after 12 months.

Use Coconut battery. Apple’s diagnostic means jack.

And there may be a few good ones. But I’ve studied 10+ over years and not found 1 decent unit yet.
 

BigMcGuire

Contributor
Jan 10, 2012
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Our 10.5 iPads have degraded significantly but I think these iPads have such great battery life that most people won't notice. My 2019 Air 3 is doing the same. Whatever batteries Apple is using in their iPads it isn't like the iPhones, which, for me, stay pretty consistent over 2 years (even after hundreds of cycles). Our iPads are losing % of capacity every few months. aakshey is right.

That said, I never come close to using 15% of my iPad battery in one sitting (even reading for hours and hours or watching YouTube videos for 30 mins).
 

JBGoode

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Jun 16, 2018
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Use Coconut battery. Apple’s diagnostic means jack.

And there may be a few good ones. But I’ve studied 10+ over years and not found 1 decent unit yet.

I do use Coconut battery. iPads don't have a battery health monitor. It's 100%
 

BigMcGuire

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Jan 10, 2012
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I do use Coconut battery. iPads don't have a battery health monitor. It's 100%

I'd be happy with that. My wife and I had 2 10.5s, I sold my 10.5 to my sister and got an Air 3. All 3 iPads are diving pretty fast but, after 2 years should be 80%+ (as Apple promised). I'm just used to Apple products staying at 100% (like your iPad).

I'm very happy with our 10.5s and Air 3. Use them every day. iPads these days are great great devices. Love them. (With Apple Pencil and Smart Keyboard).
 

aakshey

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Jun 13, 2016
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I do use Coconut battery. iPads don't have a battery health monitor. It's 100%

How many cycles has it been through?
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I'd be happy with that. My wife and I had 2 10.5s, I sold my 10.5 to my sister and got an Air 3. All 3 iPads are diving pretty fast but, after 2 years should be 80%+ (as Apple promised). I'm just used to Apple products staying at 100% (like your iPad).

I'm very happy with our 10.5s and Air 3. Use them every day. iPads these days are great great devices. Love them. (With Apple Pencil and Smart Keyboard).

Share cycle count and battery health under load, not under idle conditions.
 
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baconroll

macrumors member
Original poster
Jun 5, 2010
97
18
Our 10.5 iPads have degraded significantly but I think these iPads have such great battery life that most people won't notice. My 2019 Air 3 is doing the same. Whatever batteries Apple is using in their iPads it isn't like the iPhones, which, for me, stay pretty consistent over 2 years (even after hundreds of cycles). Our iPads are losing % of capacity every few months. aakshey is right.

That said, I never come close to using 15% of my iPad battery in one sitting (even reading for hours and hours or watching YouTube videos for 30 mins).
I just think 2% is a lot in two weeks for a brand new iPad. As I said it was manufactured in Sep 2018 so I’m wondering if a year of no use has something to do with it. Maybe it won’t move now for a while.
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Ok something is wrong. Either it’s my iPad as it is now 97% from 98% in one day or it is iMazing. Can I use coconut for Windows 10?
 

aakshey

macrumors 68030
Jun 13, 2016
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Really? I usually take my coconutBattery readings when charge complete in idle conditions. Under load the % is usually less.

It’s not supposed to be lower. It never is for new products. That’s a sign of battery degradation.
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I just think 2% is a lot in two weeks for a brand new iPad. As I said it was manufactured in Sep 2018 so I’m wondering if a year of no use has something to do with it. Maybe it won’t move now for a while.
[automerge]1572795650[/automerge]
Ok something is wrong. Either it’s my iPad as it is now 97% from 98% in one day or it is iMazing. Can I use coconut for Windows 10?

Shelf ageing does hurt the battery slightly.
 
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BigMcGuire

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Jan 10, 2012
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I just think 2% is a lot in two weeks for a brand new iPad. As I said it was manufactured in Sep 2018 so I’m wondering if a year of no use has something to do with it. Maybe it won’t move now for a while.
[automerge]1572795650[/automerge]
Ok something is wrong. Either it’s my iPad as it is now 97% from 98% in one day or it is iMazing. Can I use coconut for Windows 10?

Mac OS only. :(
 

aakshey

macrumors 68030
Jun 13, 2016
2,768
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I just think 2% is a lot in two weeks for a brand new iPad. As I said it was manufactured in Sep 2018 so I’m wondering if a year of no use has something to do with it. Maybe it won’t move now for a while.
[automerge]1572795650[/automerge]
Ok something is wrong. Either it’s my iPad as it is now 97% from 98% in one day or it is iMazing. Can I use coconut for Windows 10?

iMazing reading varies every minute. Coconut will show the exact same reading as iMazing.
 

JBGoode

macrumors 65816
Jun 16, 2018
1,090
1,597
I just think 2% is a lot in two weeks for a brand new iPad. As I said it was manufactured in Sep 2018 so I’m wondering if a year of no use has something to do with it. Maybe it won’t move now for a while.
[automerge]1572795650[/automerge]
Ok something is wrong. Either it’s my iPad as it is now 97% from 98% in one day or it is iMazing. Can I use coconut for Windows 10?

In my experience, iMazing and Coconut have the same readings.
 

aakshey

macrumors 68030
Jun 13, 2016
2,768
1,266
Really? I usually take my coconutBattery readings when charge complete in idle conditions. Under load the % is usually less.

By load I mean:

NetFlix in PiP with Safari open
In built speakers full volume
Min 50% brightness

Now tell me the health and cycles.
 

BigMcGuire

Contributor
Jan 10, 2012
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the Alpha Quadrant
One thing to consider too is that not all batteries come 100% design capacity from factory. While my iPads are usually hundreds of mAh more than design capacity, I've had iPhones come 96% capacity from design capacity from the factory.

That's why taking readings over time = much better than 1 reading at one point in history.
 
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baconroll

macrumors member
Original poster
Jun 5, 2010
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In my experience, iMazing and Coconut have the same readings.
Ok thanks. Must be shelf ageing then. Will check it again in a week. I need to return within 10 days if need be but reluctant to do so as good it at a great price.
 

BigMcGuire

Contributor
Jan 10, 2012
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By load I mean:

NetFlix in PiP with Safari open
In built speakers full volume
Min 50% brightness

Now tell me the health and cycles.

Wife's iPad Pro 10.5 (2018-05-07 Manufacturer's date)
Under Load: 69 Cycles. 94% Capacity (7556mAh).

My iPad Air 3 is actually doing very well - 8245 mAh capacity (8134 mAh design capacity) - 15 cycles.
 
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aakshey

macrumors 68030
Jun 13, 2016
2,768
1,266
Wife's iPad Pro 10.5 (2018-05-07 Manufacturer's date)
Under Load: 69 Cycles. 94% Capacity (7556mAh).

My iPad Air 3 is actually doing very well - 8245 mAh capacity (8134 mAh design capacity) - 15 cycles.

That’s pretty bad. At 69 cycles it should have been > 100%.

The problem is all modern iPads are that bad. So yours is just the same as any of them.

15 cycles is way too few to mean anything. Let us talk after another 100 cycles or so. :)
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The problem is most people don’t really use their iPads much since they don’t really use it for work. So they have very few cycles. After 3 years they probably have 300 cycles and maybe 80% health which they think is normal, it isn’t.

Those who really use iPads for heavy work can easily use 1-2 cycles a day if not more.
 
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baconroll

macrumors member
Original poster
Jun 5, 2010
97
18
One thing to consider too is that not all batteries come 100% design capacity from factory. While my iPads are usually hundreds of mAh more than design capacity, I've had iPhones come 96% capacity from design capacity from the factory.

That's why taking readings over time = much better than 1 reading at one point in history.
Thank you for that advice.
 
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BigMcGuire

Contributor
Jan 10, 2012
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the Alpha Quadrant
While my wife and I did get 2018 10.5 iPad Pros that have batteries that are degrading faster than I'd like, to make the statement that ALL 10.5 iPads have bad batteries is incorrect.

My (and my wife's) 2018 10.5 dropped several hundred mAh in the first 20 cycles. My 2019 iPad Air 3 is holding steady after 15 cycles. Both 10.5s are still ~93-95% (~1.5 years of use). I think, like the iPhone, Apple says =>80% after 1000 cycles and/or 2 years.

All in all, even with the 93%, the 10.5s last for frigging ever. My iPad Air 3 lasts weeks (with my usage).
 
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BigMcGuire

Contributor
Jan 10, 2012
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the Alpha Quadrant

I guess this just mentions cycles now days. Could have sworn it said two years at one point. Will see how the next few years fare. By then we will probably upgrade. Lol

Edit :


Mentions Applecare free battery replacement if under 80% during AppleCare coverage. So at most 2 years.
 
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