batteries

MIT Explains How To Turn An Old Car Battery Into A Working Solar Cell

There are over one 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 cell. It’s surprisingly simple.


The Sounds Around You Could Soon Charge Your Phone's Battery

Sitting in a noisy bar, caring for screaming children, or watching the ball game — all awful locations to make a phone call, but soon these scenarios could actually help charge the battery of your cell.


Cheap Solid-State Batteries That Last Twice As Long As Li-Ion Are Coming

Most of our devices run (not for long enough) on lithium ion batteries. But there could be a new, old kid on the block — in the shape of a solid-state battery that can hold twice the charge as li-ion.


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.


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).


Colour-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 colour based on the how much energy is supplied from an attached rechargeable battery. In other words, it’s stained glass for a generation who swaps their smartphone’s wallpaper five times a day.


Smartphone Buying Guide 2014: How To Improve Your Smartphone Battery Life

No matter the amount of amazing features inside your smartphone, it’s all worth nothing if you’re constantly running out of battery power. We’ve put together a few simple tips and tricks to help you get the best out of your phone’s battery, and included some charging solutions for even the most power-hungry users.


New Li-On Material Survives 30 Times The Charges Of Current Batteries

Aside from capacity, the worst thing about batteries is that they degrade with time, holding less power with every charge. But now scientists have developed a lithium ion material that can endure 30 times as many charge cycles as current cells.


Carry An Entire Video Studio Up A Cliff With The North Face's Charged Backpack

Sometimes you have to carry around a bunch of technology and use it wherever you are. That’s hard enough, but keeping your electronic devices charged when you’re in the middle of nowhere? That’s harder. Filmmaker and rock climber Cedar Wright has to lug his laptop, hard drives and a heap of other video editing gear around and also scramble up cliffs at the same time.


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 1500mAh battery for back power on-the-go.


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