If there are no branches then it's a series circuit. If there are branches it's a parallel circuit. In a television series, you get several episodes, one after the other. A series circuit is similar.

At some point, the 3.6 V of a single lithium ion battery just won’t do, and you’ll absolutely want to stack LiIon cells in series. When you need high power, you’ve either got to increase voltage or ...

How a parallel-connected battery can increase the energy-storage capacity of smart glasses and their unique challenges. How parallel battery-management ICs can help maximize runtime and maintain ...