My PS3 controllers also last pretty long if the games I play aren't vibration-heavy. I think a 20-30 hours of non-rumble gameplay sounds about right.

Quote Originally Posted by Hypoallergenic Cactuar View Post
My laptop.
At 50% sound and 50% brightness with one video open. 45 minutes max.
The speakers are just a drop in the ocean, really. CPU/GPU load, HDD usage and screen brightness is what kills it. Not to mention, cheap laptops with big displays almost always cut corners when it comes to battery life in order to save production costs.

Other than that, your battery might also be worn out. There is a limit on how many charge cycles they can deal with.