We’ve all been there before. Midway through a grueling seven-hour plane ride, with no in-flight entertainment to speak of, when suddenly your portable music player flashes that godforsaken low-battery warning you’ve been dreading since the moment you realized you left your charger on your bedside table back home.

So what do you do when the music finally cuts out and all you’re left with is three seconds of ear-ringing silence followed by the phlegm-choked gargled snoring of the 300-pound Texas soccer mom sitting to your left? Try to sleep through it? Jam your fingers in your ears? Attempt to commit Seppuku with a small shard of the plastic drink cup you’ve just crushed in your hand out of frustration?

Now there’s a better way to escape your misery: ChargeCard, a tiny, portable battery charger that’s compatible with just about any electronic device you can throw at it. It weighs only two ounces, measures just a quarter-inch thick and carries twice the charge of most other portable battery chargers.

If you’re really advanced, you can even carry a spare ChargeCard to charge your primary ChargeCard when it runs out of battery, and another ChargeCard to charge that one, because you never known how much charge you’re going to need. Just be careful you don’t create an infinite paradox that tears a hole in the space-time continuum, because there aren’t that many outlets in the nether-void and it would totally suck to be lost beyond the realm of existence without your iPod.