Battery question

Tech198 · Dec 18, 2012, 07:55 PM

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..

Why?

BigMcGuire · Dec 18, 2012, 08:36 PM

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 http://batteryuniversity.com/learn/a...ased_batteries

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.

Dec 18, 2012, 07:55 PM	#1
Tech198 macrumors 68000 Join Date: Mar 2011 Location: Australia, Perth	Battery question 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.. Why? __________________ 15" i7 Macbook Pro, 750Gig HD, Apple TV 2, iPhone 4S, iPad 3 16Gig
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Dec 18, 2012, 08:36 PM	#2
BigMcGuire macrumors 6502 Join Date: Jan 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 http://batteryuniversity.com/learn/a...ased_batteries 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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