Lithium batteries: here's how to make them last

When your hand feels cold, your mobile phone does too - and that's bad for the battery. With a headset and voice commands, you can keep your phone nice and warm in your pocket. — dpa

Lithium-ion batteries can be found in many places in the home: They are widely used in everything from smartphones to notebooks to Bluetooth boxes.

But what many people don't know is that the life of these batteries can be significantly extended by disciplined charging and discharging.