Fear not! My 11 year old son is working on a nuclear-powered car battery that will hold a charge for one hundred years... And if that fails (he's a little short on the plutonium to run some tests), there's always the Big Fella in the sky to save the day!

Regards, Matt B
Smiling though gritted teeth.

Actually, there is such a thing as a nuclear-powered battery:

http://en.wikipedia.org/wiki/Atomic_battery

http://www.msnbc.msn.com/id/7843868

Unfortunately, there's not much chance of buying one at your local Wal-Mart just yet.