battery

Apple envisions curved batteries for mobile devices

Apple is eyeing different shapes for batteries to find more room for them in phones, tablets, and other mobile gadgets.

Published today by the U.S. Patent and Trademark Office, a patent application dubbed "Curved battery cells for portable electronic devices," describes exactly that. The shape of such a battery would be changed during the manufacturing process to form a curve in its design. That trick would be achieved by heating up a set of curved plates and applying pressure to the battery cell.

The goal would be to create a battery that can make better use of … Read more

Five Android apps that prolong your smartphone's battery life

Have you found yourself wishing that your Android's battery would last longer? Don't answer that, I already know. Be it poor app design, ever-larger display sizes, or our constant desire to play mobile games, we're eating up battery life faster than we'd like.

As a platform, Android has improved with each iteration and task management, and multitasking keeps getting smarter.

With that said, one of the first complaints from new smartphone users is that the battery doesn't seem to live up to expectations. Sure, the 2013 crop of flagship phones seems promising, but not everyone … Read more

FAA said to be near approving Boeing's Dreamliner battery fix

After three months of sitting on the ground, it's looking like Boeing's 787 Dreamliner jets may be able to soar again.

According to the Wall Street Journal, the Federal Aviation Administration is rumored to announce as soon as Friday that the jets will soon be allowed for takeoff. People familiar with the matter told the Journal that the FAA believes that Boeing has proven that the redesigned batteries are now safe.

Boeing's Dreamliners were grounded in January after a battery fire on an All Nippon Airways flight let to a forced evacuation of the plane. The FAA … Read more

New teeny-tiny battery charges in less than a second

One of the biggest bugbears of smartphones is just how much juice they drain -- and how long they take to recharge. Batteries are also the reason many devices can't be smaller; after all, the batteries have to fit somewhere (although, given the burgeoning phablet market, that's not exactly a huge problem).

Scientists have made several recent attempts to build a better lithium ion battery. In the latest push, a team of researchers led by mechanical science and engineering professor William P. King at the University of Illinois in Urbana-Champaign has developed a new type of lithium ion battery that's just a fraction of the size of the batteries we use now -- and that can out-power the best supercapacitors. … Read more

Boeing wraps up 787 Dreamliner battery testing

When it comes to aircraft in flight, "uneventful" is a good thing.

Boeing today said that it has completed certification testing for a new battery system for its 787 Dreamliner designed to replace the one at the center of a Federal Aviation Administration investigation over recent fire-related incidents. Those incidents prompted the FAA to order airlines to ground their Dreamliners until the batteries were proven safe to operate.

The certification testing wrapped up with a demonstration flight on "line number 86," a Boeing-owned production Dreamliner built for LOT Polish Airlines. Boeing said that the aircraft flew … Read more

Rhino Battery Holster keeps your batteries close

You know what they say... keep your friends close, and your batteries closer.

A Washington-based accessory maker has just created a Kickstarter project for its latest product, the Rhino Battery Holster. As the name suggests, the contraption allows you to holster your camera battery like a gunslinger in an old Western.

Capable of holding two Canon 2 LP-E6 juice packs, the battery holster has an integrated belt clip that lets you attach the holster to your belt, camera strap, or camera carrier. Alternately, there are brass inserts at the rear of the belt clip that let you secure the holster to anything using a carabiner. … Read more

Some iOS 6.1.3 users hit by battery drain and Wi-Fi issues

Another iOS update, another round of complaints.

Released last week, Apple's iOS 6.1.3 was designed to fix a security hole that let someone access the iPhone by sneaking past the lock screen. But the update also seems to have plagued some users with other problems, according to blog site Gotta Be Mobile.

The persistent battery drain rears its ugly head again with iOS 6.1.3. Several people posting on Apple's Support Communities forum say the battery drains faster after installing the new update. Some have tried the usual fixes, such as turning off notifications and … Read more

Teensy-weensy Fuel emergency phone charger fits on a keyring

There are endless options for battery backup devices for your smartphone. There are battery cases, battery packs, solar chargers, and hand-crank devices. But they all have a common enemy: bulk. You have to find the space in your pocket or purse to keep them with you. This is where the Fuel phone charger comes in. It's as easy to carry as your car keys.

Fuel is shaped like a little red gas canister. Inside the aluminum housing is a 220 milliAmp hour battery. It's just over an inch high and half an inch thick, leading its creator Devotec Industries to claim it as the world's smallest cell phone charger. Fuel isn't going to fully recharge your battery, but it will give you an extra 20 to 30 minutes of talk time when you need it most.… Read more

Boeing flight-tests redesigned battery for 787 Dreamliner

Boeing conducted a test flight of its 787 Dreamliner today as it works to analyze how the aircraft's redesigned battery system performs in the air.

The two-hour "functional check flight," which departed Paine Field in Everett, Wash., around noon today, is the first step in confirming that the systems perform as designed to allow the grounded aircraft to return to service, Boeing said in a statement. The crew of six on board during the flight performed a variety of tests from a normal flight profile, including cycling the landing gear and operating the backup systems.

The test … Read more

Q&A: MacFixIt Answers

MacFixIt Answers is a feature in which I answer Mac-related questions e-mailed in by our readers.

This week, readers wrote in with questions about battery care, where to get Mac-specific training, what to do about guest accounts deleting user data, and the limitations of using an iMac as an external display for other systems. I welcome views from readers, so if you have any suggestions or alternative approaches to these problems, please post them in the comments!

Question: Common battery care guidelines MacFixIt reader Thomas asks:

I am eternally confused by battery care. My current understanding is that the old … Read more