guys , there are a few threads about this issue

but this question is not answered properly in neither of them

for lithium ion batteries , the storage conditions (i mean the recommended) are @ levels 35-40% ..

but if it is for a cell phone ,being used very much?

which is the best ? to wait the complete discharge ? or charge at any level ,70% , 85% , 35% ....

does make any difference , both for battery last , and life

in addition , i'm also confused about the difference about charging the phone from wall outlet (with supplied apple usb adapter) , or directly from computer

are there any differences , about charge times and again for battery health

thanks

for lithium ion battery, charge it whenever you can. deep charge (e.g. from 10% to 100%) is not good for lithium ion battery.

"deep charge" = to reach at the end , or to the top ?

i mean , which is not recommended ?

a) to wait battery discharge till 10-15 %

b) or to charge it till it is 100%

c) both


or only a straight uninterrupted charge from 10% to 100% does harm battery ?

nope , you dont need to wait to be drain or 10% remaining charge. Just keep it charging BUT dont leave it charge for more than 14hrs per charge. to avoid battery overcharging.

i think for these kind of batteries ,"overcharging" is not possible

maybe "overheating" may be an issue

Originally Posted by tiktak

i think for these kind of batteries ,"overcharging" is not possible

maybe "overheating" may be an issue

lolz when you charge your drain battery , of course it will heat up after charging.

Anyway that technique is for universal battery. whatever kind of battery you charge, when its in low charge 8 hrs to 14 hrs charging will not cause any damage.

AFAIK, charge your lithium ion batteries as often as you can.

Also, I'm pretty certain the iPhone is smart enough not to overcharge your battery.