You might have a phone charger plugged in next to your bed without ever bothering to switch it off at the wall. And another by your desk.

Battery ReplacementWell, I did have to go out for the first little job. A few weeks ago I got a new battery for the W123 from ...

If you leave it plugged in, a charger will continuously draw a small amount of power. Part of this power is used to keep the control and protection circuits running while ... your house can add up ...

If you leave it plugged in, a charger will continuously draw a small amount of power. Part of this power is used to keep the control and protection circuits running while the rest is lost as heat.

Inductor-inductor-capacitor (LLC) resonant converters have a couple of appealing characteristics for applications requiring an isolated DC/DC converter such as minimal switching losses, no reverse ...

It transmits data from power meters over existing electrical wiring, eliminating the need for dedicated communication cables, and can also extend connectivity to backend systems in data centers or ...

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources ...