Battery Test on rMBP Mid-2012


hey.

have rmbp mid-2012 , thinking battery ending sooner has be. how can test battery?

don't mean battery cycle. mean, how can test on-screen time without holding chronometer , using it. there application or that?

thank you.

specs if needed;

15"
i7
256 ssd
8gb ram

fair solving problem: found out use graphic switcher (in energy section on settings) off , means lot of power drain think, use on , using auto brightness , getting @ least 1.5x battery performance.
 

battery life going vary heavily depending on usage. if screen on maximum brightness , cpu pegged @ 100%, battery won't last long if screen @ 75% , cpu being utilized @ 50%.

if osx isn't giving "battery may need replaced soon" warnings, you're fine.
 


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