iPhone 5 Battery Letting You Down? Apple Might Replace It—For Free

If your iPhone 5's battery just doesn't have the kick that it feels like it should, you might be able to get a new one for free. Apple has found that an apparently small batch of iPhone 5s (not the S or C) that "may suddenly experience shorter battery life or need to be charged more frequently." You can check if yours… » 8/22/14 6:31pm Friday 6:31pm

MIT Explains How To Turn an Old Car Battery Into a Working Solar Cell

There are over 1 billion cars in the world, and the vast majority of them use batteries made from lead. As lithium batteries replace these old timers, eventually there may be many of the lead suckers sitting in landfills. Which is why MIT wanted to find a way to reuse them—by turning them into a new kind of solar… » 8/18/14 4:22pm 8/18/14 4:22pm

The Best (And Worst) Browser For Your Laptop's Battery Life

Ever wondered how much the weight of 10,000 open browser tabs is dragging down your laptop's battery? Fear not: AnandTech just dug into the particulars with a delightfully detailed test to find out which browser is the biggest battery hog. This information could save mankind('s laptop batteries). » 8/13/14 3:12pm 8/13/14 3:12pm

This Temporary Tattoo Is Actually a Battery That's Powered By Your Sweat

What if the sweat produced by your body could power your gadgets? And what if the connection between the two could be made by a temporary tattoo, the more you sweat, the more power the tattoo generates? That's exactly what researchers at UC San Diego have developed—and one day, it could power your wearables. » 8/13/14 9:30am 8/13/14 9:30am

Color-Changing Stained Glass Makes It Easy For Cathedrals To Redecorate

A group of Japanese researchers from the University of Tokyo, the Segawa Laboratory at RCAST, and Sony have created a prototype glass panel with intricate designs that's able to change color based on the how much energy is supplied from an attached rechargeable battery. In other words, it's stained glass for a… » 8/06/14 1:24pm 8/06/14 1:24pm

Turn Your iPhone Charger Into a Portable Backup Battery

Even carrying your iPhone's charger everywhere you go doesn't guarantee you'll be able to keep your phone running all day. Sometimes outlets can be hard to find, and for those times the NomadPlus is here to help—transforming your iPhone's standard charger into a portable 1,500 mAh battery for back power on-the-go. » 7/30/14 2:19pm 7/30/14 2:19pm

This Compact Device Keeps Small Electronics Running on Emergency Power

A UPS—or uninterruptible power supply—beneath your desk can be a lifesaver if your building loses electricity while you're working. However, most people don't own one because a UPS is typically designed for power-hungry desktop computers and end up being heavy and expensive—but not APC's new tiny and cheap Back-UPS… » 7/10/14 6:00pm 7/10/14 6:00pm

A Power-Packed Charger That Gives Your Phone Two Extra Lives For Just…

Anker's made a name for itself with high-capacity portable chargers that are still compact and easy to travel with. But the company is now launching a new smartphone accessories brand called Zolo that it hopes will also become synonymous with 'affordable' through the use of a crowdfunding campaign to cut out middle… » 6/23/14 1:20pm 6/23/14 1:20pm

These Inductive Batteries Keep Your Power Tools Perpetually Charged

It's almost impossible to think of a time when you had to wrangle a long cord while working with power tools. But as convenient as cordless tools are, they're useless if their batteries are dead. So this fall, Bosch will be introducing batteries with inductive charging that simply need to be placed on a base station… » 6/17/14 4:40pm 6/17/14 4:40pm

Recharging This Backup Battery Takes As Little As 15 Minutes

A backup battery can be a lifesaver if your phone is on the brink of dying—but only if it isn't dead as well. External power packs can usually take hours to charge depending on their capacity, but UNU claims its new Ultrapak GO and TOUR batteries can be charged enough to top off a smartphone in just fifteen minutes. » 6/10/14 4:20pm 6/10/14 4:20pm

Flexible Battery Straps Could Double a Smartwatch's Runtime

At Computex 2014, the folks over at Engadget stumbled across a clever solution to the battery life woes that have plagued smartwatches for years now. A company called ProLogium has developed a flexible lithium ceramic battery that can be shaped and worn like a watchband, adding an extra 500 mAh of power which means… » 6/04/14 9:07am 6/04/14 9:07am

Scientists Solved the Mystery of Why Rechargeable Batteries Go Bad

Every time you recharge your lithium-ion batteries, their storage capacity decreases just a little bit. That is why your mobile gadgets won't stay on nearly as long as they did even a year ago. But thanks to research by the US Department of Energy, we finally know why exactly that occurs and, more importantly, how to… » 5/29/14 1:40pm 5/29/14 1:40pm