I read in Apple's battery care that you should let the battery drain once a month. I'm going on memory, so feel free to confirm.
I remember reading that as well but I was unsure of what they meant by "drain". I believe you start getting a low battery reading at about 20%. That is as far as I've let it drain before using the wall recharger. Would it be better to let it drain closer to 0% or is the low battery warning close enough?
When wifi is on the battery drains more quickly so it would make sense that it would charge more slowly with the wifi on.
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