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Abdulhaq

macrumors regular
Original poster
Apr 23, 2013
214
14
I work in Qatar but my permanent residence is in Mumbai in India. I travel to India every year after a period of 11 to 12 months. Every time I have to carry my iPad 7 with Apple pencil and bring it back with me to Qatar. I like to travel light and I was wondering if I leave my ipad in Mumbai for 12 months permanently then when I travel to India will i still find it in working condition or not. It will be lying unused and idle in my drawer and I want know if moisture and humidity will have any adverse affect on my ipad. Two of my macbooks have become unusable because moisture and humidity have affected their keyboards. However, since an iPad does not not have a keyboard I would like to know if lying unused and idle for 11 months would affect it adversely in anyway.
 

alecgold

macrumors 65816
Oct 11, 2007
1,479
1,038
NLD
That.
But what I’m wondering is: if you travel once a year, how heavy needs light to be? I assume that you are at least a few weeks back? It’s not like you are onebagging the world?
 

yabeweb

macrumors 6502a
Jun 25, 2021
789
1,679
I’d take it with me, I could use it and it’s not that much of a carry on.
 

CharlesShaw

macrumors 68000
May 8, 2015
1,667
2,762
I’d take it with me, I could use it and it’s not that much of a carry on.
That's what I thought, but then it occurred to me that the OP probably wants to leave the iPad at home to use for the one month a year that he is home, which would allow him to leave his laptop in Qatar. And only travel with a phone.
 

yabeweb

macrumors 6502a
Jun 25, 2021
789
1,679
That's what I thought, but then it occurred to me that the OP probably wants to leave the iPad at home to use for the one month a year that he is home, which would allow him to leave his laptop in Qatar. And only travel with a phone.
iPad is a little more than a magazine, I mean just carry it back and forwards…
 
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Abdulhaq

macrumors regular
Original poster
Apr 23, 2013
214
14
Charge it to 80%, switch it off (not standby, off), put it in a sealed plastic bag (with some desiccant), store it in a place that doesn't get hot. Should be fine after a year.
I will take your suggestion. This will help me to travel ultra-light by just carrying my passport and my iphone with me because all my other belongings (essential cloths and toothbrush)are with me in both in my Qatar and Mumbai homes.
 
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TorontoSS

macrumors 65816
Nov 9, 2009
1,077
392
I once bought an ipad for my grandmother who lived in Bombay as well. Just so you're aware, she didn't use it for a year and it stopped working! As I had purchased outside of India where consumer laws are not as great, Apple was very good about it and the person explained that batteries are meant to be used. And not using it, means it goes to 0 and once it gets to real 0, it stops.

If it helps, my grandmother had stored it in a cupboard. Not in plastic or anything.
 

User #07242024

macrumors regular
Jul 23, 2024
144
58
No, never put electronics and batteries in cupboard, closet, drawers or enclosed storage. Put them in well ventilated areas of your room such as bedside table, bookshelf etc. Make sure nothing heavy is put above it to protect the screen.

I agree with others, you can just bring it with your travel. If you want to turn it off, make sure battery is 80% not 100%.
 

ThunderSkunk

macrumors 601
Dec 31, 2007
4,056
4,526
Milwaukee Area
No, never put electronics and batteries in cupboard, closet, drawers or enclosed storage. Put them in well ventilated areas of your room such as bedside table, bookshelf etc. Make sure nothing heavy is put above it to protect the screen.

I agree with others, you can just bring it with your travel. If you want to turn it off, make sure battery is 80% not 100%.
What is the reasoning behind the 80%? I was under the impression that repeated power cycling these batts to 80% is the speediest way to reducing their total capacity by 20%, and depleting the battery below 80 draws enough out of it that Apple counts it as a cycle. But even that doesn't explain why you'd want to only charge to 80% before long-term non-use. ?
 

User #07242024

macrumors regular
Jul 23, 2024
144
58
What is the reasoning behind the 80%? I was under the impression that repeated power cycling these batts to 80% is the speediest way to reducing their total capacity by 20%, and depleting the battery below 80 draws enough out of it that Apple counts it as a cycle. But even that doesn't explain why you'd want to only charge to 80% before long-term non-use. ?
Sorry actually it’s 50%-60% for lithium batteries. That’s the way to prevent fast degradation due to high voltage (100%) or deep discharge meaning difficulty to recharge again due to low voltage (0%).
 
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Basic75

macrumors 68020
May 17, 2011
2,053
2,406
Europe
What is the reasoning behind the 80%?
The worst thing for Li-ion batteries, short of cooking them, is leaving them at 0%. They also don't like being above 80%, but that's not quite as bad. Charging to 80% before putting it into storage means you start at the highest comfortable charge state giving you the most time before it will empty itself.

Repeatedly cycling to 80% does not quickly reduce the capacity by 20%, this "memory effect" was a problem with older NiCd and NiMh batteries. As for cycle counting, charging twice from 30% to 80% counts as one full cycle.

It's a good idea to occasionally charge to 100% and discharge to 0% to calibrate the battery percentage shown. Just don't forget to charge immediately after hitting 0%. In everyday use it's best to charge once you get down to 20%. Cycling between 20% and 80% is best for battery life.
 

Basic75

macrumors 68020
May 17, 2011
2,053
2,406
Europe
Sorry actually it’s 50%-60% for lithium batteries. That’s the way to prevent fast degradation due to high voltage (100%) or deep discharge meaning difficulty to recharge again due to low voltage (0%).
Yes, 50% is the most comfortable charge state for a Li-Ion battery, if you know that you lose say 20% per year switched off in storage then charging it to 60% before switching it off for a year is best.
 
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ThunderSkunk

macrumors 601
Dec 31, 2007
4,056
4,526
Milwaukee Area
Oh man I guess the last time I learned about battery charging was in the huge NiMh batteries I bought for my cabin like 20 years ago. jeez
Thx for the info on that.
 
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