Worried that a power outage might prevent you from playing video games? Worried you might have to do something unimaginable, like talk to other people?
Fret not! I've crunched some of the numbers, and as long as you're up to date on your portable gaming, you should be able to avoid human contact for almost two entire days. Forty-seven hours. If you take time to eat and sleep, that could be enough to get you through one serious power failure. (And I'm not even counting any gaming devices that have batteries! If you're stocked up, that Game Boy Color could last you the next four weeks.)
Here's a quick list:
Nintendo 3DS - ~5 hours
PlayStation Vita - ~4 hours
Nintendo DSi - ~12 hours
PlayStation Portable - ~7 hours
iPad, Nexus 7, or other tablet - ~10 hours
iPhone, Samsung Galaxy S3, or other smart phone - ~5 hours
Gaming Laptop - Anywhere between 2 and 8 hours, depending on your laptop's specs and settings. Let's say ~4 hours.
Diablo III - 0 hours
So start charging! Also, if you haven't started charging already, you're probably screwed. Sorry.