Comment Re:Zero (Score 1) 400
No one cares about the trivial solution.
Just use an uninterrupted power supply system. It can be built to draw current only when the batteries are low, and that can be programmed in, so that the actual draw of electricity is orthogonal to the use of the electricity. Think kind of like a Prius.
This sounds like an energy-efficient design. Some else suggested a capacitor--that wouldn't be so bad, I suppose.
UNIX was not designed to stop you from doing stupid things, because that would also stop you from doing clever things. -- Doug Gwyn