Battery performance suffers over time, like when a phone needs to be charged more frequently after ... The researchers plan to apply this discovery to other types of batteries to see if the T-SEI also ...

The survey of 2,000 Americans pinpointed precisely what level of remaining phone battery people reach before they start to worry or seek out a way to get charged. Results showed anxiousness creeps ...

When do you start to panic when you see your cellphone is losing its juice? A new poll shows the percentage that induces anxiety for most.

An online survey by Talker Research found that Americans begin worrying about phone battery life when it hits 38 percent on ...