New MBP 15 can't work 8-9 hours

Just bought a 15' MBP 2.4GHz online. Everything is excellent, except for the battery. It seems to only work for 4-5 hours without AC, not 8-9 hours like said on the website. The full charge capacity is 6899. I have no idea about these numbers, so asking the experts here: is this right?

Welcome to Apple Discussion.
As RetiredEngineer says the running time on battery depends on the tasks & settings for the computer. You would have to replicate the particular test conditions used by Apple to achieve their claimed performance. Even then batteries vary somewhat when new.
User experience suggests that it is reasonable to expect around 5hrs or better when new - a big improvement on the previous removable batteries. If however you use usb/firewire powered drives, play/burn cd's/dvd's, play processor-intensive games, download lots of material, & the list goes on, you will find the battery needing recharge much sooner.
I use mains power as much as possible but run off the battery sufficiently to maintain it in good condition. For some people, eg tertiary students, mains power is not available much of the time so extended battery performance is important.
Your full charge capacity seems about right.
Neville

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Message was edited by: Michael Flynn

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Sorry, I just realized I put this in the Original Folder not the Late 2008 folder.
I bought a new MBP 2.4 GHz, 4 GBs RAM machine in January of this year, 2009. Model Identifier 5,1. I wanted to connect it to my TV's HDMI port. Only interested in getting video to TV since I run sound through a sound system. I have been using my MacBook Air's DVI adapter to a DVi - HDMI cable. I have a Sony Bravia 40 HD tv. Video works just fine from my MBAir, can change resolutions to anything and video works perfectly (audio has a little problem though - high frequency hum out of the MBAir's audio port). That's why I want to change to my MB Pro - audio from the New MBP is good.
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Message was edited by: Jim Humphrey
Message was edited by: Jim Humphrey

Hi Jim,
Just to clarify, you state that you have a MacBookPro5,1, which is the late 2008 model. The video output on that model is a mini-DisplayPort, not a mini-DVI (like the pre-unibody MacBooks) or a micro-DVI (like your 1st gen MBA). DisplayPort is a different type of port. (Note - I requested an edit of the title of your post to clarify that).
When you connect the TV, in what sequence are you connecting? The 'proper' sequence is to connect the DVI-HDMI cable to the mini-DisplayPort to DVI adapter, have the HDMI end connected to the TV, have the TV set to Line-In, looking for a signal, then connect to the MBP last.
What happens when you connect it like that? Have you tried System Preferences > Displays > Detect Displays?

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