batteries
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Credit Card Thin Battery Is Perfect For Other Kinds of Emergency Charges [Power]
If you thought the American Express card in your wallet was the perfect tool for solving all of life's little emergencies, think again. This wallet-friendly backup battery can charge your iOS devices or serve as an emergency sync cable.More »
$99 FreedomPop iPhone Case Packs 'Free' 4G
Is the FreedomPop case too good to be true? After teasing us with scant but tantalizing (scantalizing?) details back in March, FreedomPop will finally let you pre-order one of its nifty iPhone cases, which adds 4G and extra battery life to your phone. That’s right: buy the $99 case and your...
Cellink, An iPhone Charging, Card-Reading, Battery Backup-Ing Dongle
The Cellink is ugly, but it might turn out to be the most useful thing in your gadget bag Do you carry a backup battery, a camera connection kit and a charger with you in your man-sack? Yeah, me too, and it’s really no big deal as even together they weight almost nothing. But if you’...
Vampiric Implants Siphon Clam Essence for Electrical Power [Science]
Tomato juice, Bud Light, home electronics—is there anything clam won't work well in? Everybody's favorite bi-valve is now an essential part of an experimental engine—it's the battery.More »
Solar Power and Battery Backup: Tesla and SolarCity's Dream Home [Solar]
Electric car maker Tesla Motors is teaming up with the solar panel leasing company SolarCity to make what might be the first complete, packaged electrical system for an off-the-grid solar home.More »
Finding the Best AA Battery for the Money [Batteries]
What brand of AA battery gives you the most power for your dollar?More »
3M's Silicon Anodes Could Boost Gadget Battery Life by 40 Percent [Batteries]
Graphite is a common choice for anodes in Li-Ion battery systems but doesn't store much charge for its bulk. However, 3M's newly-devised electrode could boost battery life and replace the soft-carbon material for good.More »
Your Phone Will Magically Charge in Your Pocket Thanks to This New Fabric [Military]
Imagine having jeans that charge your phone just by putting it in your pocket. That's what this material—developed for the British Army—does. The fabric is made of yarn that conducts electricity from a battery pack to anywhere in your clothing. It can charge your gadgets on contact.Mo...
Why Your New iPad Charges Past 100% And Why Every Other Gadget Does Too [Feature]
Technically, this is the most your new iPad's battery should ever be charged. Last week, Dr. Raymond Soneira of DisplayMate Technologies discovered that when he charged his new iPad, it continued to draw current long after iOS reported its lithium-ion polymer battery as being 100% charged. Do...
Future Batteries Could Run on Brown Liquor [Batteries]
The cathode is often one of the most expensive components of a battery-especially if it's made of cobalt or precious metal. A Swedish scientist may have discovered a way to replace pricey metal cathodes with a goopy byproduct of paper processing known as "brown liquor."More »
