new iPhone and battery degradation

majkom

macrumors 65816
Original poster
May 3, 2011
1,351
643
Hi there, just simple question. I got new unopened iPhone 7 Plus - bought it 2 months ago and did not open the box till now. Is it possible that due to long time not being used/charged, battery may loose some of its capacity? Or are 2 months just OK and I have nothing to worry about?
 

Relentless Power

macrumors Nehalem
Jul 12, 2016
30,298
30,541
Hi there, just simple question. I got new unopened iPhone 7 Plus - bought it 2 months ago and did not open the box till now. Is it possible that due to long time not being used/charged, battery may loose some of its capacity? Or are 2 months just OK and I have nothing to worry about?
If the iPhone hasn't been used for approximately two months, it's not uncommon for the lithium ion battery to naturally deplete overtime.

Here are some additional facts that Apple provides about their lithium ion batteries and charging capabilities.

https://www.apple.com/batteries/

https://www.apple.com/batteries/maximizing-performance/
 

akash.nu

macrumors 604
May 26, 2016
7,343
8,257
It doesn't degrade your battery performance in just 2 weeks. The phones were probably in the warehouse more than that. However, you may find it out of charge when you use it for the first time. Just start using it normally and the battery will start functioning optimally after a couple of charge cycles.
 

Relentless Power

macrumors Nehalem
Jul 12, 2016
30,298
30,541
It doesn't degrade your battery performance in just 2 weeks. The phones were probably in the warehouse more than that. However, you may find it out of charge when you use it for the first time. Just start using it normally and the battery will start functioning optimally after a couple of charge cycles.
The OP stated the iPhone has not been used in two months, not two weeks. Which would naturally lose some charge, but as you said, use the iPhone normally and charge regularly.
 

Gav2k

macrumors G3
Jul 24, 2009
9,218
1,584
Storing the phone for 2 months will NOT harm the battery. Yes it will drain very slowly but there will be no detrimental effects from doing so.

The only time damage occurs is if the battery is flat then you store it for an extended period. The battery will then deep cycle which is hard to pull back from.
 

CatherineVeraGat

Suspended
May 6, 2017
154
47
Storing the phone for 2 months will NOT harm the battery. Yes it will drain very slowly but there will be no detrimental effects from doing so.

The only time damage occurs is if the battery is flat then you store it for an extended period. The battery will then deep cycle which is hard to pull back from.
Exactly!!
 

Julien

macrumors G4
Jun 30, 2007
11,135
3,821
Atlanta
Lit-ion batteries can be stored for up to 10 years in a temperature controlled environment and not degrade too much. It is using them that degrades them.
 

majkom

macrumors 65816
Original poster
May 3, 2011
1,351
643
thx everyone for replies, so it is hopefully gonna be ok:)
 

cbreze

macrumors 6502a
Nov 26, 2014
598
310
Oregon
I've stored various phones for many years at a time. Always begin the storage at around 50% charge. Never had any issue even years later. They usually only drop a couple percent at most. People obsess over the batteries way to much. I've not had a battery issue since the nickle cadmium days.
 

chscag

macrumors 68040
Feb 17, 2008
3,192
986
Fort Worth, Texas
Hi there, just simple question. I got new unopened iPhone 7 Plus - bought it 2 months ago and did not open the box till now.
Have to wonder why you waited 2 months to open the box? Apple allows you to return an item within 2 weeks no questions asked. If the phone had defects or somehow didn't work right you could still return it to Apple but not as easy as it would be within the 2 week period.
 

majkom

macrumors 65816
Original poster
May 3, 2011
1,351
643
@chscag: bought it in quick sale from local apple reseller and did not have time to set it up, will ge to it next week

Well, I believe apple knows best how to store its new products, hopefully they planned for scenario that some of its iphones spend few months unwrapped:) I will see soon...
 

Mlrollin91

macrumors G5
Nov 20, 2008
13,475
8,685
Ventura County
Why not use Battery Care to check?
Any iOS 10 app will not be accurate when it comes to battery health, only a mere estimate. The only reliable source of testing real-time battery health is using a Mac with Coconut battery installed. iOS 10 changed what developers had access to, essentially killing off these types of iOS apps.
 
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