Demand for rechargeable batteries ... what happens in a lithium-ion battery that’s discharging is similar to what happens in the familiar AA battery that has been powering devices for years.

Is anyone giving or receiving a holiday gift labeled "batteries not included"? We thought so. Listen up: We tested 15 AA batteries ... that the batteries aren't rechargeable.

Lithium batteries are produced as either primary (disposable) or secondary (rechargeable) batteries. All batteries have positive and negative terminals, marked (+) and (-) respectively, and two ...

Are swollen batteries dangerous, and what should you do to make sure that they are properly recycled? Let's take a look at ...