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Roost Smart Battery

You won't get as many smarts with the Roost Smart Battery as you would with a wholesale connected replacement, but at $35, it's a viable and cost-effective option for simple, retrofit smarts.

By November 15, 2015

3.5 stars Editors' rating November 15, 2015
Editors' Take

Joby Action Battery Grip

It looks like a typical handgrip mount for an action cam, but its USB ports let you know it's something more.

By November 3, 2015

MSRP: $69.99


Software boosts smartphones to 4K without tapping out battery

Developed in Japan by Fujitsu and Kogakuin University, the software can scale up video to 4K while maintaining normal battery drain.

By November 23, 2015


How to see how much battery your Apple Pencil has left

This simple trick will help you keep tabs on the Apple Pencil's battery status.

By November 17, 2015


True or false? Battery myths that need to die

Battery technology may not have changed much in the last couple decades, but common knowledge is even worse.

By November 11, 2015


Five Android apps that prolong your smartphone's battery life

This collection of apps will not only extend the life of your handset, but could also improve its overall performance.

By September 26, 2015


Mophie's new slim external batteries expand Powerstation line

Available in multiple battery sizes the new chargers start at $40 and sport an aluminum finish.

By November 11, 2015


Find out if your MacBook's battery exceeds its recommended lifespan

The number of times a MacBook's battery has been cycled through can be quickly found in its System Report, and Apple also offers its estimate on what your model's cycle count limit should be.

By November 3, 2015


Motorola's Droid Maxx 2 offers long battery life at an affordable price

CNET's Dan Graziano gives you a first look at the new Droid Maxx 2, which packs a 5.5-inch full HD display, promises 48 hours of battery life and has a 21-megapixel rear camera.

By October 27, 2015


5 smartphones with great battery life

CNET highlights eight impressive smartphones that showed outstanding battery life in our labs' performance tests.

By June 29, 2015