VIDEOGAME.RttP{Sony Portable Playstation}

"Oh, I almost forgot about the battery. Behind a removable plastic cover at the rear is the battery compartment. The PSP uses an 1800mAh Li-ion battery pack, that's thankfully replaceable. You'll get around three and a half hours' battery life when playing a heavy duty game like Ridge Racers, but obviously you'll get better with a more basic game, or listening to music. Of course, if you're at home, you can simply plug in the power supply and play to your heart's content, but if you are on a long journey and want to play the whole way, you do have the option of carrying multiple batteries with you.
It's not surprising that the battery life is limited, when you consider the size of the screen and the fact that there are two MIPS R4000 processors inside, both running at 333MHz. The PSP is the most powerful handheld gaming console ever built and as such, it draws a fair amount of juice."

3.5 hrs? That's not very good at all. That'll cost a lot of money in the long run, and if you're on, say, a bus ride to NY, that's a pain in the ass.

Battery life on things is annoying shit, especially cordless phones, cell phones, and discmen.