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ZZ Bottom

macrumors 6502a
Original poster
Apr 14, 2010
829
258
Seeking advice on tracking down the cause of my recent drop in battery life while my MBP is sleeping. My sleep battery decrease used to hang at around a ~10% reduction over night. Now in the last week or so I am losing 20-30% during same time. I have performed a full 100% to 0% to calibrate the battery 3 days ago, but it doesn't appear to have corrected.

Details:
-Bought new in early November. Current cycle count is 38, condition: "normal"
-Has 60GB Mushkin SSD in primary sata, oem drive in secondary. SSD has 13.5GB free.
-At most two safari windows open while in sleep, no other apps running.
-Only recent app installed is "Boom" to boost audio volumes. But I can't find any other complaints about boom causing any problems


Could anyone point me in the right direction of what I may do to help figure out the sudden reduction in battery performance?

PS battery life while the system is running appears completely normal based on last threes months.
 
Seeking advice on tracking down the cause of my recent drop in battery life while my MBP is sleeping. My sleep battery decrease used to hang at around a ~10% reduction over night. Now in the last week or so I am losing 20-30% during same time.
It's probable that your MBP didn't stay in sleep mode the whole time:
I have performed a full 100% to 0% to calibrate the battery 3 days ago, but it doesn't appear to have corrected.
First, that's not how you calibrate a battery. Second, calibration doesn't affect power consumption in sleep mode. It only makes your battery readings more accurate. Finally, the built-in batteries in the newer Mac unibody notebooks come pre-calibrated and do not require regular calibration like the removable batteries.

This should answer most, if not all, of your battery questions:
 
Last edited:
its fine th e battery indicator can sometimes dsplya inaccurate reports

so turn it off and USE YOUR COMPUTER
 
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