Battery max capacity 1378 not 1430?

Jongo1

macrumors regular
Original poster
Oct 9, 2011
155
0
Battery detective says my battery is 1378mah not 1430 what does urs read
 

Intell

macrumors P6
Jan 24, 2010
18,897
407
Inside
iPhone batteries, like all lithium based batteries, have health that goes up and down throughout the battery's life. Right now you are in a small down swing. While in a few days or cycles you could be running at 1440mAh. It's nothing to be concerned about as it is all normal.
 

heyyitzmelissa

macrumors 6502
Jan 17, 2012
352
1
in a few days or cycles you could be running at 1440mAh. It's nothing to be concerned about as it is all normal.
Wrong. Design capacity is 1430 mAh, that's what it is brand new. You've used it so it's worn. Your max now is 1378 mAh
 

Intell

macrumors P6
Jan 24, 2010
18,897
407
Inside
Wrong. Design capacity is 1430 mAh, that's what it is brand new. You've used it so it's worn. Your max now is 1378 mAh
It goes up and down as it is used. Even right out of the factory, it is never 1430. Look at Macbook batteries. They use the same technology and they fluctuate as they are used. In most cases the health goes between 93% and 102%. All normal.
 

NanoNyrd

macrumors regular
Dec 1, 2011
218
0
Batteries wear out slowly, so expect a (slow) drop in capacity. Also, measuring the capacity (and anything else) has an uncertainty, so you should also see fluctuations, possibly correlated with the temperature.

BatteryInfoLite is a nice Cydia app for monitoring the battery.
 
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