The Nintendo DSi has a bigger screen, a better processor and an SD card slot, but one thing the DS Lite (and the humble DS Phat) still have on their younger brother is roughly one to six hours of battery life. And now it looks like we know why.
The Japan-based Bunnie:Studios blog (via Gizmodo) decided to tear down the DSi and have a look for themselves at why exactly the DSi needs so much extra juice.
