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hard numbers for capture data? RE: battery

80 Views 0 Replies Latest reply: Jan 4, 2013 5:53 PM by hotwheels 22 RSS
hotwheels 22 Level 1 Level 1 (0 points)
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Jan 4, 2013 5:53 PM

i am running capture datas for mac developers and i am wondering if anyone can help me with an argument about them taking back this computer based upon the info i am recording (for the tme being i am ignoring funky wake from sleep issues as well as battery drain while in sleep mode isssues for the moment).


i have a new battery and a new logic board in my mid 2009 MBP (still under applecare) as of a month ago and i am trying to run some diagnostics on it while doing their requested capture data procedures (they seem to want to test the battery and ignore my original complaints about wake from sleep issues). basically i have never been happy with battery life (this always was a /max/ of 1 1/2 hr while working on it and 3 1/2 hr when just letting it sit on the desktop doing nothing) or the performance. and now that the geniuses at the bar finally decicded that a service battery alert meant there was in fact a problem with the battery (instead of blowing me off with some excuse) i am completing a reinstall of system preferences and trying to run a set of diagonostics at the same time.


again - ignoring the fact that WAKE FROM SLEEP is really funky - can anyone help me with hard info on battery life here? i have /no/ programs running.


1. 100% full charge

2. take off power charge

3. on battery power for 1 hr 10 min (19% battery loss).

4. close lid for 11 hr 17 min in Sleep Mode (10% battery loss)

5. wake from sleep and running for 3 hr 55 min (68% battery loss)

6. manual SHUT DOWN at 3% battery charge showing.

7, attempt to RESTART two hours later and will not restart.

8. plug into battery power and run restart (after login 4% battery charge showing)


at a minmum this seems like it is roughly 5 hours and 5 minutes of total run time (10% battery power was lost while in sleep mode) and this is the case with a brand new battery and with no applications running. granted this is not 3 1/2 hours which i had been getting for the first 2 1/2 years but - well -


is this acceptable? are there baseline specs that would tell me what i should be getting? are the other things i should be testing?


this computer has acted like a lazy do since the day i bought it and as a returning mac user i sort of feel like i got the blowoff for 2 1/2 years when trying to ask about battery power issues. now that i am familiar with the OS it would be great to give them a peg to hang their hat on if they were inclined to take this deal back....


background thought: i /used/ to have the "automatically adjust screen brightness" checked and got a suggestion at some point to turn this off which somewhat counterintuitively helped with the battery life. so now i set it at 75% because i cannot see my screen without major eye strain at 50%...

MacBook Pro, OS X Mountain Lion (10.8.1), with 64 bit Win7 Boot Camp | iCloud


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