Terrible Battery Life 15 inch

[Fasailmac]

I have the base 15 inch macbook pro with lion and it is getting terrible battery. Right now i have 3 tabs open with no flash and can't seem to get more then 3.5 hours of battery. The battery has 100% health. Is anyone else having this problem, brightness is at half.

 

[simsaladimbamba]

Have a look at Activity Monitor (Applications / Utilities /) and select All Processes and sort by CPU to see what the culprit may be.
image below uses sorting by CPU as an example

Further reading:

Mac OS X: Reading system memory usage in Activity Monitor
Making The Most of Activity Monitor
What Is Activity Monitor (or How to Take Your Mac's Pulse)​

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This should answer most, if not all, of your battery questions:
Apple Notebook Battery FAQ by GGJstudios
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[Apple 26.2]

What's your brightness set at?

 

[bozz2006]

I'm with you to an extent. I've lost 1.5-2 hours since installing Lion. I'm on integrated graphics all the time and have no rogue processes draining my CPU.

 

[KidZgOtMac]

I too share this problem and only have my MBP since last week. No rogue processes, only light browsing and battery is sucking dearly. 2.5 - 3.5 hours of battery is what I get depending on what I'm doing.

 

[ABadSanta]

I'm with you to an extent. I've lost 1.5-2 hours since installing Lion. I'm on integrated graphics all the time and have no rogue processes draining my CPU.

I'm frustrated with that as well. After Lion i lost about an hour. I wonder if it's worth calling Apple for.

 

[negativzero]

Lion's been great with my MBP, I'm still getting 6-7 hours with my MBP
I'm on the 15" 2.2GHz i7 btw

 

[uiop.]

If it makes you feel better, I was elated to get 3 hours of battery life after installing Lion.