iPhone Battery

jamacouve

Senior Member
Joined
May 25, 2015
Messages
520
Hey guys , got a new iPhone and want to know what the best practice is for batteries.

Ive read a few contradicting things. Do you charge it full then use it till empty or do you try and keep it as charged as possible as much as you can??
 

Way69

Well-Known Member
Joined
Oct 28, 2009
Messages
449
The recommendation is that you try to avoid letting it drop below 30%. Full discharge of lithium ion puts the battery under unnecessary stress. Quick charge which is is not an issue for the iPhone also tends to strain the battery.
 

noxibox

Honorary Master
Joined
Apr 6, 2005
Messages
23,336
It has nothing to do with battery memory, and yes it can make a difference. Typically avoid regularly fully discharging a lithium battery.
 

PostmanPot

Honorary Master
Joined
Jul 16, 2005
Messages
34,953
Best way is to keep the battery between 30 and 80%. Which is quite difficult. I would use it normally, not allowing it to fully discharge, except a full discharge so that it turns off once or twice a month.
 

Freshy-ZN

Executive Member
Joined
Aug 17, 2005
Messages
5,730
The recommendation is that you try to avoid letting it drop below 30%. Full discharge of lithium ion puts the battery under unnecessary stress. Quick charge which is is not an issue for the iPhone also tends to strain the battery.

Best way is to keep the battery between 30 and 80%. Which is quite difficult. I would use it normally, not allowing it to fully discharge, except a full discharge so that it turns off once or twice a month.


http://www.apple.com/batteries/maximizing-performance/ mentions nothing about 30%??
 

dabean

Expert Member
Joined
Feb 24, 2004
Messages
1,663
The recommendation is that you try to avoid letting it drop below 30%. Full discharge of lithium ion puts the battery under unnecessary stress. Quick charge which is is not an issue for the iPhone also tends to strain the battery.

That's for the actual voltage of the cells. An intelligent device like a phone will display relative (usable) percentage. If it didn't your battery would be dead (or catch fire) if you ever reached 0%.
 

Joeboy69

Expert Member
Joined
Sep 30, 2013
Messages
1,558
M iPhone 5 is about 3 years old. I keep it plugged in whenever I can but the battery still discharged completely often. The only change is that it used to go down as low as 2% before switching off, now it does that on about 7%. Doesn't answer OP though!
 

biometrics

Honorary Master
Joined
Aug 7, 2003
Messages
71,858
My housemate has a 5 year old iPhone 4 and its battery is still fine. She doesn't follow any 30%-80% rules.
 
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