Microsoft has a plan to make your laptop last a lot longer. Instead of just one battery, Microsoft will include multiple batteries in laptops, each with different purposes, to support the performance of varying tasks. Specialized software will recognize when to switch between power sources, allowing the laptop to be used much longer than in any previous laptops. Though Microsoft is planning to use technology that is already available, this technology is still a few years off. But we can expect to see battery technology lead to longer lasting devices in the coming years.