Battery Pack 101
What is a 'battery pack?' I have been asked this question many times. Often the term 'battery' and 'battery pack' is being used interchangeably. I thought this could be an interesting topic to write about. We will try to cover the following topics in this blog post: What is a battery pack? What components/systems does a battery pack contain? Block level diagram of a typical battery pack Battery Management System *I will specifically talk about Lithium-ion battery packs. some of the concepts may not hold true for other battery chemistries like Lead-acid, NiMH, NiCd etc. Let's begin with what's a battery pack? Figure 1 As shown in the above diagram, The term 'cell' refers to a single energy storage device. When one or more cells are connected in a series-parallel connection, a whole assembly is called a 'battery' or 'battery pack'. As said before, a battery pack may consist of one or more cells. The numb...