184 Results for


Editors' Take

Ego Power+ Lawn Mower

A bigger battery puts the Ego Power+ a cut above the competition.

By Apr. 2, 2014

MSRP: $499.00


Glucose-based battery has 10 times energy of lithium: researchers

Researchers at Virginia Tech have developed a working sugar-powered fuel cell with energy density greater than that of current lithium-ion batteries.

By Feb. 4, 2014


​How to upgrade the aluminum Mac Mini

Apple has made it easier than ever to upgrade the hard drive and memory in the Mac Mini. Here’s what you need to know to get the job done.

By Apr. 2, 2014


3D-printed pinhead battery could power robots

One of the smallest batteries ever, this tiny lithium-ion can store enough juice to power tiny robots or medical implants.

By Jun. 21, 2013


Charges dropped against teen in science experiment 'bomb'

Kiera Wilmot, the 16-year-old who put toilet cleaner and aluminum foil together at school and it went bang will not be charged with a felony.

By May. 15, 2013


Sexiest AA batteries ever

Sanyo XX batteries offer good looks, low discharge, and high capacity for demanding electronics.

By Jun. 30, 2011


How to check the battery condition in OS X

All batteries die over time, and OS X offers a quick way to determine if yours is on its way out.

By Nov. 1, 2012


Researcher says new iPad's charging math is 'wrong'

In a report released today, research firm DisplayMate says the math behind the latest iPad's charging indicator is wrong, providing users with misinformation about when their gadget is fully juiced.

By Mar. 23, 2012


Tesla: You can't 'brick' Model S batteries

In response to a blog reporting inoperable batteries in Tesla Roadsters, automaker says batteries in its Model S sedan can be recharged even after months of being unplugged.

By Feb. 24, 2012


IBM speeds push for 500-mile EV battery

Big Blue signs on partners for its Battery 500 Project to design an "air-breathing" lithium air battery that would create a leap in energy density.

By Apr. 20, 2012