FYI: iPad battery lasts >1000 full charge cycles

doboy

macrumors 68020
Original poster
Jul 6, 2007
2,481
969
http://www.apple.com/batteries/ipad.html

"Charge Cycles3
A properly maintained iPad battery is designed to retain up to 80% of its original capacity at 1000 full charge and discharge cycles. You may choose to replace your battery when it no longer holds sufficient charge to meet your needs."

Somehow, I always thought it was 200 full cycles. Maybe that was just my old MacBook Pro battery. :eek:
 

Enjoylife1788

macrumors 6502a
Aug 22, 2011
796
105
http://www.apple.com/batteries/ipad.html

"Charge Cycles3
A properly maintained iPad battery is designed to retain up to 80% of its original capacity at 1000 full charge and discharge cycles. You may choose to replace your battery when it no longer holds sufficient charge to meet your needs."

Somehow, I always thought it was 200 full cycles. Maybe that was just my old MacBook Pro battery. :eek:
It's 400 cycles for iPhone.. iPad and MacBook are 1000 cycles.
 

DS3

macrumors 6502a
Mar 7, 2011
504
0
Yeah I noticed no difference on my iPad 2 after a year of heavy use. I assume there was a slight drop but I was pleased.
 

TauntingBull

macrumors newbie
Jun 10, 2012
6
0
I'm new to apple, so please excuse my ignorance....

Questions:

1. What is defined as a "Charge Cycle" for iPad 3?
2. Is battery calibration needed on the iPad 3?
 

Enlightenment1

macrumors regular
Apr 1, 2012
107
0
http://www.apple.com/batteries/ipad.html

"Charge Cycles3
A properly maintained iPad battery is designed to retain up to 80% of its original capacity at 1000 full charge and discharge cycles. You may choose to replace your battery when it no longer holds sufficient charge to meet your needs."

Somehow, I always thought it was 200 full cycles. Maybe that was just my old MacBook Pro battery. :eek:
Thanks for this. You learn something new every day :)
 

iAmYou

macrumors 6502
Jun 29, 2010
423
1
I'm new to apple, so please excuse my ignorance....

Questions:

1. What is defined as a "Charge Cycle" for iPad 3?
2. Is battery calibration needed on the iPad 3?
A charge cycle is 100% to 0% then 0% to 100% = 1 cycle
or combination of discharges and recharges.
use 50% then charge to 100% and Use to 50% and charge to 100% = 1 cycle
and so on.

Battery calibration is only needed to synchronize battery and battery meter.

Can you damage the battery if you leave it plugged in at 100% charge? :confused:

No it will not damage the battery, but that being said it is better to use the battery a little bit to keep it in good health.
 

Pressure

macrumors 601
May 30, 2006
4,098
326
Denmark
It's Lithium-ion Polymer batteries, not some great unknown heh.

They will hold 80% charge after two years unless their charge cycles have been reached.
 

Rodster

macrumors 68040
May 15, 2007
3,178
6
A charge cycle is 100% to 0% then 0% to 100% = 1 cycle
or combination of discharges and recharges.
use 50% then charge to 100% and Use to 50% and charge to 100% = 1 cycle
and so on.

Battery calibration is only needed to synchronize battery and battery meter.


No it will not damage the battery, but that being said it is better to use the battery a little bit to keep it in good health.
Thanks for the info but I always thought a charge cycle = a battery charge regardless of whether the battery level was at 20/50/95% :confused:
 

Menneisyys2

macrumors 603
Jun 7, 2011
5,408
209
http://www.apple.com/batteries/ipad.html

"Charge Cycles3
A properly maintained iPad battery is designed to retain up to 80% of its original capacity at 1000 full charge and discharge cycles. You may choose to replace your battery when it no longer holds sufficient charge to meet your needs."

Somehow, I always thought it was 200 full cycles. Maybe that was just my old MacBook Pro battery. :eek:
And we DO need as many cycles as possible. My iPad 3, purchased on 03/23 (the day it arrived in Finland), is already at the 60th power cycle. (Displayed by Cydia-based BatteryDetective. For comparison, my iPad 2 purchased over a year ago and used as much as my iPad 3 is only at around 180 cycles.

This all means the battery of our iPad 3's will die on us a lot earlier than the batteries of earlier iPad models.

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My macbook has 831 charges and still lasts as long as when i got it.
Surely it doesn't - prolly you just didn't notice the difference. It's at least 15%.
 

TauntingBull

macrumors newbie
Jun 10, 2012
6
0
So where do I find out how many charge cycles have I used? I looked all over the general settings but couldn't find it anywhere....
 

filmbuff

macrumors 6502a
Jan 5, 2011
898
274
I don't know how many charge cycles my iPad has but I've had it for a year and a half, using it every day, and no sign of trouble from the battery. I remember reading that the battery is good for 1000 charge cycles on Apple's website when I got it. I estimated 3 years of use before needing a replacement, but I will probably be ready to buy an iPad 5 by then anyway :D
 

Menneisyys2

macrumors 603
Jun 7, 2011
5,408
209
I don't know how many charge cycles my iPad has but I've had it for a year and a half, using it every day, and no sign of trouble from the battery. I remember reading that the battery is good for 1000 charge cycles on Apple's website when I got it. I estimated 3 years of use before needing a replacement, but I will probably be ready to buy an iPad 5 by then anyway :D
I don't think its cycle count is over 200-300. Neither is mine (have used it for several hours a day) - see my prev post on comparing the typical cycle counts for iPad 1/2 and 3.
 

Menneisyys2

macrumors 603
Jun 7, 2011
5,408
209
My launch day 3Gs is at about 750 cycles and still holding about 91% of its original capacity.
You're lucky. My 3GS is at cycle count 541, and the battery only holds 81% (981/1200 mAh) of the (original) charge.

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I've charged it around 650 cycles and its still working like its brand new.
The number of charges (that is, the number of imes you've put the iPad on charger) doesn't equal the cycle count. I don't think yours is over 400 either.
 
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