DARPA looking for battery that could power a laptop for months

Drawback: it’s radioactive

Forget recharging or swapping out disposable AAs every day. What if you could power energy-hungry devices for months or even years at a time from a single, reasonably-sized battery? A Washington state-based fusion energy startup is helping to make that dream a reality for DARPA, which wants higher-power radioactive batteries for space. …