Most of us — casual users and enthusiasts alike — are forever searching for smartphones with the longest battery life. And while fast charging keeps us topped up every day, the absence of replaceable ...

Learn how to make a simple lemon battery and use it as an emergency phone charger in this hands-on science experiment. Watch ...

First, let’s clear the air: Optimate is not Optima. The former is a European-engineered brand of battery chargers; the latter is a maker of those red-and-yellow AGM batteries you’ve probably seen in ...

A couple of decades ago, having a dead battery usually meant pulling out jumper cables and hoping your friendly neighbor (if you didn't own a secondary car) would be kind enough to give you a jolt to ...

In a groundbreaking development, scientists have created a record-breaking smartphone charger that can fully power up a device in less than five minutes. As our smartphones become increasingly capable ...

Faith writes guides, how-tos, and roundups on the latest Android games and apps for Android Police. You'll find her writing about the newest free-to-play game to hit Android or discussing her paranoia ...