All set to 8-bit Final Fantasy XIII music!

If you have 9 minutes, check out this battery test comparing the 3DS, PSP and Vita. It's sped up 60 times (and eventually 100 times), but it's still 9 minutes long. There's 8 bit Final Fantasy XIII music in the background, though, so you may end up sitting through the whole thing.

Here's what you're looking at:

The PSP is the PSP-3000 Hunsters Model with an expanded 2200mAh battery. It's playing Monster Hunter Portable 3rd from UMD with Media Install. The game has been set to the point just in front of the village leader after leaving the main gathering spot.

The 3DS is the Zelda 25th anniversary system with the system's standard 1300mAh battery. It's playing Monster Hunter 3G and is also set to in front of the village leader spot.

The Vita is the 3G/Wi-Fi model with its standard 2210mAh battery. It's playing Uncharted off a game card.
All three systems are set to highest brightness and highest volume. The 3DS 3D volume is set to max.