Tesla's New Battery Could Solve One of Solar Power's Biggest Problems

So far, specific details are thin on the new battery designed for home use that Tesla’s announcing next week. But just based on what we do know, it’s a pretty big deal. The quest for a good battery that can store home-generated power is kind of like the holy grail for a renewable energy future. This one product might… » 4/23/15 9:45am Thursday 9:45am

Tesla's Next Big Product Is Coming On April 30: Batteries

When Elon Musk makes his next big announcement later this month he won’t be joined by an electric car or a space-bound capsule. Tesla will finally be passing along details on its long-awaited batteries designed for home use, plus a “utility-scale” battery as well—both of which will likely be manufactured in its new… » 4/22/15 10:12am Wednesday 10:12am

Your New Galaxy S6 Will Have a Built-In Expiration Date

Your smartphone's battery life won't last forever. Today, your digital companion might work all day long, then party late into the evening—but a year from now, you'll almost certainly have depleted a substantial portion of its capacity. What happens when your phone no longer lasts the day? Time to replace the battery!… » 3/02/15 10:15am 3/02/15 10:15am

A Camera Bag Divider That Protects and Charges your Gear

Unless you're heading out to shoot for National Geographic, you don't want to leave the house with a giant over-stuffed camera bag hanging off your shoulder. Everything you bring has to play a crucial role for your photography outing. Or, better yet, two crucial roles like this padded camera bag divider with a 3,000… » 2/10/15 5:20pm 2/10/15 5:20pm

Everyone's Got Room For a Portable Charger No Bigger Than a Pack of Gum

If your phone ends up dying in the middle of the day you've got no one to blame but yourself. You want a giant bright screen? It's going to cost you in battery life. And with Goal Zero's upcoming Flip 10 charger, if you've got room in your pockets for a pack of Juicy Fruit (or at least Bubblicious), then you've got no… » 2/04/15 3:22pm 2/04/15 3:22pm

Energizer Is Finally Making AA Batteries Using Recycled Materials

Once the use of toxic mercury in household batteries was eliminated a couple of decades ago, it finally became safe to just toss dead AAs in the trash. But if deep down you actually felt guilty about not being able to recycle them, Energizer's here to help your conscious with its new EcoAdvanced AAs made with four… » 2/03/15 9:25am 2/03/15 9:25am

What Are Capacitors and Will They Really Charge Your Phone in Seconds?

Your phone died. Again. In these scenarios, who among us has not dreamed the dream of a future where our devices charge instantly and last forever. As capacitors—or even more exciting, ultracapacitors—get better and better at storing energy, they could replace batteries and realize at least one half of that dream. » 2/02/15 12:04pm 2/02/15 12:04pm

Batteries Made With Bulletproof Kevlar Fibers May Never Explode

One of the most common reasons that batteries explode and catch fire—like on Boeing's 787 Dreamliner—is because over time small conductive pathways grow inside the battery's inner structure that eventually cause it to short out with disastrous results. But Nicholas Kotov, a professor at the University of Michigan, and… » 1/27/15 8:15am 1/27/15 8:15am

A Smart 9-Volt Battery Adds Phone Notifications to Any Smoke Detector

There are plenty of smart smoke detectors on the market that connect to your home's Wi-Fi network to provide smartphone notifications when there's trouble, but they're an expensive upgrade to the dumb smoke detector you've (hopefully) already got watching over your home. The $40 Roost promises pretty much the same… » 1/07/15 7:20pm 1/07/15 7:20pm