Macbook Pro Early 2011 Battery Life

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hello everyone,

purchased macbook pro 2011 reputable computer store in area, came decent warranty (3 mths) w/ option extend 2 years 130$.

issue has arised battery life not have been told expected these notebooks. maximum of 4 hours maybe 4.5 through light usage (pages + itunes @ half screen brightness). went few times complain , each time replaced battery life claimed "new" one. battery life remains same approximately each time , service battery indicator comes on after few weeks. decided download coconut battery , told me "new" battery straight apple holds 75% of it's original capacity. store declined comment on statistic when told them told me have leave laptop there day or 2 run there own tests. not entirely sure how proceed here battery has been replaced numerous times , made clear around want battery brand new 100% health. advice? battery life has not differed across osx 10.9 or 10.10. 4-4.5 hrs moderate usage , less once few light apps running browser (moderate usage me). must mention have done smc resets pram resets per instructions on apple forums multiple times.

specs

macbook pro 2011 13" w/ dual core i7 (2.7 ghz) , 4gb ram , 500gb hdd

suggestions appreciated. many thanks.
 

return refund.

have warranty, has repeatedly played despite store's efforts repair it. time money
 


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