Battery question

Discussion in 'iPhone' started by Tech198, Dec 18, 2012.

  1. macrumors 604

    Mar 21, 2011
    Australia, Perth
    In regards to the draining of the battery in the iPhone, why can the iPhone run on "reserved" power, (if the % is shown) you can eaily run it down to 1%, but you need to charge it at least 5% just to switch it on..

  2. macrumors 6502a


    Jan 10, 2012
    Because you should never run a Lithium Ion battery down below 10% if you don't have to. You can actually damage it beyond repair if you run it all the way out to 0%. So on the iPhone when it's 1% it's actually around 5%-10% so that the battery won't kill itself. Do some research on Lithium Ion/Polymer batteries. Here, I'll even give you a link

    So the reason why you have to charge to 5% (as with most Lithium Ion batteries (laptops whatever)) is because of the danger of destroying the battery if it completely discharges.

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