Battery issues!! takes 6hrs to charge and runs out in less 2hrs

I've had my laptop(unibody 2008 model) for 8 months now. I've noticed that battery life is so much shorter than the one I had before (early 2007 model)
However, when i took it to apple service center they said there's nothing wrong with the numbers and it all looks normal. so i've just been using it since there was nothing i could do...
Is it really normal for your battery to take more than 6 hours to charge?(all i did was web browsing)
Also, NOW the battery runs out in less than 1hr and half...
Full charge capacity (mAh): 3468
Cycle count: 234
Condition: Check Battery
iStatPro says my battery health is 75%
they guys at the apple center said that it's because my cycle counts are too high but come on! since my battery ran out in less than 2hrs 30mins from the beginning, I just had to charge it more often...
this is something new that just started happening
my laptop just shuts down the second it gives me the 10minute warning...
Is there anything I can do so apple replaces my battery or am i just doomed to buy a new one?
it's frustating how apple keeps saying there's nothing wrong with it..

Apple rates your battery to retain 80% of its original Full Charge Capacity (4650 mAh) after 300 cycles:
http://www.apple.com/batteries/notebooks.html
Yours has only 75% of its original capacity after only 234 cycles and is now faulty — that's what the "Check Battery" notation in System Profiler indicates. Point this out to the manager of your local Apple Store and ask to have it replaced. If you don't get anywhere with the manager, call Apple Customer Relations at 1-800-767-2775 and make the same request, explaining that the store has failed to comply. Be polite, patient and calm at all times, and be explicit about your reasonable expectation that Apple will make good on what it says you can expect of your battery.

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