Nah, the whole thing says cool. The hdmi out itself doesn't draw that much power but it is the straw that breaks the camel's back. I'm taking a gba that doesn't even have a backlight and adding a DSi lcd screen, while running a flash cart that draws more power than normal, while also running tv out. It's recommended to install a lipo battery just for the lcd alone. It's a simple mod, add two wires from the battery terminal and it's done. I'm just not super interested in using this thing as a portable so I'm holding out on the battery mod if I can help it.