Acer Aspire One Cloudbook (14-inch)

The latest MacBook Air keeps the laptop battery replacement same sleek design as its predecessor and adds a 5th-gen Intel Core i5 processor and even faster flash storage. And, with a 14-hour runtime, it lasts nearly 2 hours longer than before. Add in OS X and its useful Continuity features, laptop battery replacement and it’s easy to see why the $999 Air is one of our favorite ultraportable values.

With its soft-touch carbon fiber lid, magnesium alloy deck and full HD display, this 13-inch system certainly doesn’t look like a Chromebook. It also boasts a backlit keyboard, Intel Celeron processor and 16GB of storage, toshiba laptop battery making it powerful enough for all cloud-related tasks. But its best attribute is its 13-plus hour endurance, better than any Chromebook we’ve tested.

If you want a truly fantastic keyboard, durable chassis and strong performance, look no further than the ThinkPad T460. Unlike its slim sibling, the T460s, the T460 makes room for an optional extended battery toshiba battery that gives this 14-inch laptop up to 13 hours of endurance. A durable, MIL-SPEC-tested chassis helps this long-lasting business notebook stand up to the rigors of all-day business travel.

When coupled with its keyboard dock, Microsoft’s first notebook will last up to 12.5 hours. But this “ultimate laptop” also comes with a clever fulcrum hinge, 13.5-inch, 3000 x 2000-pixel display, laptop battery for hp and a magnetically attached stylus. All this in a minimalist magnesium chassis that will probably end up in MoMA.

Not only does the 2015 MacBook Pro 13-inch with Retina display last more than an hour longer than the 2014 model — 12:04 versus an already-excellent 10:44 — but it’s also a lot more powerful. Plus, a new Force Touch trackpad can sense pressure, letting you do more things with fewer clicks.