The phone maker is throwing in a free bundle with a longer-life battery and cover to protect it. [Read more]

Popular free smartphone apps like Angry Birds consume most of their energy delivering advertising.

Seventy-five percent of an app's energy consumption was used to power advertisements in one case

Apple claims the larger battery found in the new iPad will go a long way toward compensating for the tablet's dramatically increased pixel count. This weekend I got the chance to put the battery's compensation to the test. [Read more]

A review of online comments and communities finds many iOS users enjoying better battery life, though some say the problem persists. [Read more]

Leveraging its efficient chip design, Apple says latest iPad batteries can still run for 10 hours, like the iPad2, and for nine hours on the 4G LTE cellular network. [Read more]

One of the biggest questions not officially answered about the new iPad is whether it will include access to 4G LTE networks. According to one source, the answer is a resounding yes. [Read more]

General Motors is named as a key investor in the new battery

With a new type of battery cathode, Envia says its lithium ion batteries can extend the range of electric vehicles and lower the costs. Investor GM is already testing them. [Read more]

A report said that drained batteries in five Tesla Roadsters required battery pack replacements. Tesla counters that it takes multiple measures to avoid the problem. [Read more]

This week, we go over some Super Bowl TV tips, including what to do if you're not going to be near a TV at all. Julie talks about developing new battery life tests, and Josh laments the decline of the compact point-and-shoot camera.

There are more phones with batteries you can't remove than ever before. The trend brings with it many benefits, and a few uneasy "buts."