ghworker2010 Posted September 27, 2015 Share Posted September 27, 2015 I purchased the new mbp with retina 15inch and it says in the spec that the battery should last 9 hours. This week I used it at work each day and confirm that it lasts only about 5 hours. How do I check the battery on this laptop? Maybe they mean that if you turn it on for 9 hours and dont use any software or internet then maybe the battery will last 9 hours. Or have a purchased a lemon? thanks Link to comment Share on other sites More sharing options...
thedemon Posted September 27, 2015 Share Posted September 27, 2015 If the manufacturer claims 9 hours then 5 hours in real world use sounds about right. Link to comment Share on other sites More sharing options...
narkeddiver Posted September 27, 2015 Share Posted September 27, 2015 You need to check what the 9 hours use was claimed for. For example it might say that it will last for 9 hours of web browsing - if you are doing more intensive processing than that (editing video footage for example) then the battery will last less Link to comment Share on other sites More sharing options...
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