hey, i've had macbook pro 2 years (it's mid-2010 i7, 15"). last "calibrated" battery in january, , @ time, listed battery health went down 97% 85%. got me little worried, didn't think it.
leave mbp plugged in time, , understand, modern macbook pros designed handle fine.
yesterday watching video while using battery power, , after 45 mins, got warning saying mbp on reserve power. i've never experienced message before after such short period of time. check battery health , it's @ 45%. when click battery indicator @ top of screen says "service battery," i've never seen.
have apple care year, nearest apple store 2-hour drive away.
have idea how health of battery drop 85% 45% suddenly?
, have go apple store fix under apple care, or can go place certified repair apple computers?
can offer
edit: battery has 107 cycles on
the built-in batteries in newer mac unibody notebooks come pre-calibrated , do not require regular calibration removable batteries. battery faq:
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