This is a simple circuit diagram of 9V battery charger circuit using SCR and LM311. This is a simple circuit diagram of 9V battery charger circuit using SCR and LM311. The principle behind the circuit ...

In this circuit, a MOSFET protects a reverse-connected battery from excessive current. The MOSFET conducts only when the battery is correctly connected, which lets the battery charge or discharge. In ...

Is the battery empty, or is there something wrong with the device? That’s always a difficult question when your walkman or some other battery-powered device appears to be dead when you switch it on.

Explains electric current, highlighting that it originates from a battery and requires a complete circuit to flow. It compares electric current to water flowing through pipes, using meters to ...

Imagine a battery that’s safe, powerful, and works at normal room temperature—without the common problems of today’s energy storage systems. Scientists in China have now developed just that: the world ...

How lithium-ion (Li-ion) batteries behave under short-circuit conditions can now be examined using a new approach to help improve reliability and safety. How lithium-ion (Li-ion) batteries behave ...

The simplest complete circuit is a piece of wire from one end of a battery to the other. An electric current can flow in the wire from one end of the battery to the other, but nothing useful happens.