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FatPuppy

macrumors 68000
Original poster
Jul 14, 2012
1,709
151
If I charge my iphone 4:
1 Below 10 percent?
2 10 or above?
3 20 or below?
4 above 20 ?
 
Yes, you can charge at anytime. Why wait for a certain %? You'll probably run it down every day anyway. ENJOY! :)
 
Ok thanks everyone but I heard that if an iphone is below 20 and than charge it to 100, it's called full cycle and that I should do just one full cycle just once a month and my iphone is always running below 20, plus... I kinda hate that percentage near the little battery sign:D and I like to disable it
 
Technically, it's recommended to try and keep rechargeable batteries above 50%, i.e., to charge the device when it's around 50% or 40%. This is because running the battery down to 0% all the time isn't good for battery health. That's what I've read, but it doesn't mean I follow it :p
 
Although technically there are some situations that are more "desirable" than others as far as how often to charge or something like that, in practice, they don't make enough of a (noticeable) difference in use or lifetime for a mobile phone that it really doesn't matter (and would actually be more of a hassle to try to follow some "pattern" without really getting any real return for it anyway).
 
So basically... "charge it when you need"?:rolleyes:
 
Last edited by a moderator:
Charge when you need or want to (and for as long/short as you need or want to).
 
Ultimately, you are talking about getting three additional months out of a battery that only costs $70 to swap for new.

Battery University has detailed information to support the ideal being:

Do not charge above 80% and try to charge before you go below 20%.
Discharge 100% to 0% then leave plugged in until 100% once a month.
 
Ultimately, you are talking about getting three additional months out of a battery that only costs $70 to swap for new.

Battery University has detailed information to support the ideal being:

Do not charge above 80% and try to charge before you go below 20%.
Discharge 100% to 0% then leave plugged in until 100% once a month.

Thank you, this is the most useful answer, not that the ones above aren't, I googled "battery university" and they talk about batteries in general, are you sure that what you just said applies to iphones too? Or even ipads? I have one too, would be great to find something about it too.
 
My information applies to anything with a LiIon battery and a power management chipset. iPads, iPhones and MacBooks.
 
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